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As portable and wearable devices proliferate, the need for safe, secure, and effective battery management solutions is becoming increasingly important. Our broad portfolio of battery management solutions includes battery chargers, fuel gauges, identifiers, and authenticators and also battery monitors, protectors, and selectors. These solutions reduce cost, save space, and help to significantly extend the battery life of portable products while making them safer.

Battery Chargers

Maxim battery chargers have high efficiency, low heat and high integration in a small size which are ideal for portable devices. Get the latest battery charger specs here.

Battery Fuel Gauge - Gas Gauge

Accurate battery gauges are required for the best user experience and provide critical information about state-of-charge. Maxim's battery fuel gauges and gas gauges have been successfully used in over...

Battery Monitors Protectors Selectors

Battery monitors provide battery safety. Battery protectors will limit damage to batteries. Learn more about how these can help!

Battery Authentication & Identification

Battery identification & battery authentication IC systems ensure product safety by enabling power only when a certified battery is detected.

USB-C Solutions

Maxim Integrated’s extensive portfolio of ICs for USB-C and USB-C power delivery designs includes chargers, converters, controllers, as well as power path and protection devices.

Also see: 
USB products

Featured Videos


SIMO Technology Overview using the MAX77650 PMIC
8:10 January 15, 2018


How to Measure Temperature in Portable Projects II - Using the MAX17055 Fuel Gauge
3:12 November 13, 2017


How to Use the MAX745 as a Maximum Power Point Tracker Solar Charger
6:08 December 16, 2019

Featured Tech Docs

White Papers

Technical Documents Accurate Technology for Easy, Secure Fuel Gauging You Can Trust

Technical Documents How Secure Fuel Gauges Can Prevent Battery Counterfeiting

Technical Documentation

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Technical Documentation

Technical Documents

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Customer Testimonials

Design Solution Zivix LLC

Design Solution Equine SmartBits

Featured Blogs

Idea to IoT Product in Just Days? Talk to zGlue

Accurate, Wrist-Based Heart-Rate Monitoring—Six Months Faster

Your Guide to the Advantages of Pack-Side Fuel Gauging

Latest Blogs

On the Go Vital Monitoring and Gaming Platform

January 13, 2021

This blog explores an application using a low power SIMO PMIC, the world’s smallest solution size and highest system efficiency, and the story behind it.

The Dawn of the Self-Aware Machine

December 10, 2020

What does "The Dawn of the Self-aware Machine" really mean? I am sure many are thinking of the human-like robots seen in the movies as a way to further replace people on the factory floor.

How iButton Devices Facilitate Electric Car Safety

October 29, 2020

Formula Student Germany competitors design fierce electric race cars. They’ve relied on Maxim Integrated’s iButton devices for electric car safety.

How Being Bold Brings Smart Automation Solutions

October 27, 2020

See how the industry’s first true software-configurable universal analog IO solution provides the flexibility to meet industrial automation challenges.

How Performance at the Edge Drives Smarter Manufacturing

October 26, 2020

Maxim Integrated’s Jeff DeAngelis explains how the COVID-19 pandemic has highlighted what’s needed for manufacturing lines to adapt to changing demands.

What Makes Cryptography Easier? Secure Authenticators and Coprocessors

September 17, 2020

See how secure authenticators and coprocessors make it easier for you to integrate cryptography to protect your embedded designs.

Extend the battery life of your vehicle tracker/asset tracker/IoT device 10-fold with Maxim’s ultra-low power GPS solution

September 15, 2020

Full ultra-low power GPS solution using the MAX2769C GNSS L1 receiver, and the MAX32632 ARM Cortex M4 microcontroller

Understand and Address Threats to Cryptographic Systems

September 10, 2020

Understand the threats that cryptographic systems face and how you can guard against these threats.

Two Beautiful Ways to Measure Temperature

September 09, 2020

Learn how easily you can design with the latest Maxim resistance temperature detectors (RTDs) and temperature sensors.

When Smarter Gets Smaller, Only a Dual-Core Micro Will Do

September 03, 2020

Learn how a dual-core Bluetooth Low Energy microcontroller meets the size, power, and security demands of wireless, battery-operated IoT designs.

Featured Products

MAX77976 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

MAX77976 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

The MAX77975/MAX77976 is a high-performance high-input 3.5/5.5A fast charger with Smart Power Se...
  • High-Efficiency Single-Cell Switching Charger
    • Up to 5.5A Charging with MAX77976
    • 91.2% Buck Efficiency at 4A, 12V Input
    • 90.5% Charging Efficiency at 3.5A, 9V Input
    • Optimized for High Voltage Input Operation
    • Accelerate Charge Time by Monitoring Kelvin Sensing Battery Voltage
    • Up to 3.2A Input Current Limit with AICL
  • +28V Absolute Maximum Input Voltage Rating
  • 3.8V to 19V Input Operating Voltage Range
  • Reverse Boost with Programmable Output Voltage Options up to 12V
    • Up to 18W for MAX77976
    • Up to 12W for MAX77975
  • Integrated Battery True-Disconnect FET
    • RDSON = 7.7
    • Programmable Discharge Current Limit up to 10A
    • Support Shipping Mode and Low Battery Leakage Current
    • 1.3MHz/2.6MHz Switching Frequency with 1μH/0.47μH Inductor
    • Disconnect Input (DISQBAT)
  • Safety
    • Battery Temperature Sensing and Charge Safety Timer
    • JEITA Guideline Compliant
    • Thermal Regulation and Thermal Shutdown
    • System Voltage OVLO/UVLO
  • Charge Status Output for LED
  • Push-Button Input for Exiting from Ship Mode
  • External Discharge FET Enable Output
  • Dedicated Input for Suspend Mode (SUSPND)
  • I2C Interface
  • 4mm x 4mm FC2QFN
MAX77975 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

MAX77975 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

The MAX77975/MAX77976 is a high-performance high-input 3.5/5.5A fast charger with Smart Power Se...
  • High-Efficiency Single-Cell Switching Charger
    • Up to 5.5A Charging with MAX77976
    • 91.2% Buck Efficiency at 4A, 12V Input
    • 90.5% Charging Efficiency at 3.5A, 9V Input
    • Optimized for High Voltage Input Operation
    • Accelerate Charge Time by Monitoring Kelvin Sensing Battery Voltage
    • Up to 3.2A Input Current Limit with AICL
  • +28V Absolute Maximum Input Voltage Rating
  • 3.8V to 19V Input Operating Voltage Range
  • Reverse Boost with Programmable Output Voltage Options up to 12V
    • Up to 18W for MAX77976
    • Up to 12W for MAX77975
  • Integrated Battery True-Disconnect FET
    • RDSON = 7.7
    • Programmable Discharge Current Limit up to 10A
    • Support Shipping Mode and Low Battery Leakage Current
    • 1.3MHz/2.6MHz Switching Frequency with 1μH/0.47μH Inductor
    • Disconnect Input (DISQBAT)
  • Safety
    • Battery Temperature Sensing and Charge Safety Timer
    • JEITA Guideline Compliant
    • Thermal Regulation and Thermal Shutdown
    • System Voltage OVLO/UVLO
  • Charge Status Output for LED
  • Push-Button Input for Exiting from Ship Mode
  • External Discharge FET Enable Output
  • Dedicated Input for Suspend Mode (SUSPND)
  • I2C Interface
  • 4mm x 4mm FC2QFN
MAX77961 25V<sub>IN</sub> 3A/6A<sub>OUT</sub> USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

MAX77961 25VIN 3A/6AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

The MAX77960/MAX77961 are high-performance wide-input 3A (MAX77960)/6A (MAX77961) buck-boost cha...
  • 3.5V to 25.4V Input Operating Range, 30VDC Withstand
  • 97% Peak Efficiency for 2S Battery at 9VIN/7.4VOUT/1.5AOUT
  • 97% Peak Efficiency for 3S Battery at 15VIN/12.6VOUT/2AOUT
  • MAX77960
    • 100mA to 3.15A Programmable Input Current Limit
    • 100mA to 3A Programmable Constant Current Charge
  • MAX77961
    • 100mA to 6.3A Programmable Input Current Limit
    • 100mA to 6A Programmable Constant Current Charge​
  • Remote Differential Voltage Sensing
  • 600kHz Switching Frequency
  • System Instant On with Smart Power Selector Power Path
  • ​Charge Safety Timer
  • Die Temperature Regulation with Thermal Foldback Loop
  • Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation
  • 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold
  • ​Reverse Buck Mode 5.1V/3A to Support USB OTG
  • JEITA Compliant with NTC Thermistor Monitor
  • I2C or Resistor Programmable
  • 4mm x 4mm, 30-Lead FC2QFN

MAX77960 25VIN 3A/6AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

The MAX77960/MAX77961 are high-performance wide-input 3A (MAX77960)/6A (MAX77961) buck-boost cha...
  • 3.5V to 25.4V Input Operating Range, 30VDC Withstand
  • 97% Peak Efficiency for 2S Battery at 9VIN/7.4VOUT/1.5AOUT
  • 97% Peak Efficiency for 3S Battery at 15VIN/12.6VOUT/2AOUT
  • MAX77960
    • 100mA to 3.15A Programmable Input Current Limit
    • 100mA to 3A Programmable Constant Current Charge
  • MAX77961
    • 100mA to 6.3A Programmable Input Current Limit
    • 100mA to 6A Programmable Constant Current Charge​
  • Remote Differential Voltage Sensing
  • 600kHz Switching Frequency
  • System Instant On with Smart Power Selector Power Path
  • ​Charge Safety Timer
  • Die Temperature Regulation with Thermal Foldback Loop
  • Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation
  • 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold
  • ​Reverse Buck Mode 5.1V/3A to Support USB OTG
  • JEITA Compliant with NTC Thermistor Monitor
  • I2C or Resistor Programmable
  • 4mm x 4mm, 30-Lead FC2QFN
MAX20361 Small, Single-/Multi-Cell Solar Harvester with MPPT and Harvest Counter

MAX20361 Small, Single-/Multi-Cell Solar Harvester with MPPT and Harvest Counter

The MAX20361 is a fully integrated solution for harvesting energy from single-/multi-cell solar ...
  • Single-/Multi-Cell Solar Energy Harvester
    • 225mV to 2.5V (typ) Input-Voltage Range
    • Efficient Harvesting from 15μW to Over 300mW of Available Input Power
      • 86% Efficiency at VSYS = 3.8V, ISRC = 30mA
    • Small Solution Size
      • Utilizes Small 2016 4.7μH Inductor
  • Maximum Power Point Tracking (MPPT) Technique Using Fractional VOC Method
    • Programmable Fractional VOC Regulation Point through I2C Interface
  • Battery/Supercapacitor Charger
    • Programmable Battery Termination Voltage through I2C Interface
    • Programmable Power Good Wake-Up Signal Output Threshold through I2C Interface
MAX17853 14-Channel High-Voltage Data-Acquisition System

MAX17853 14-Channel High-Voltage Data-Acquisition System

The MAX17853 is a flexible data-acquisition system for the management of high-voltage and low-vo...
  • AECQ-100 Grade 1 Temperature Range -40°C to 125°C
  • 65V Operating Voltage
  • Ultra-Low-Power Operation
    • Standby Mode: 2mA
    • Shutdown Mode: 2µA
  • Redundant ADC and Comparator (COMP) Acquisitions
  • Simultaneous Cell and Bus-Bar Voltage Acquisitions
  • 14 Cell-Voltage Measurement Channels
    • 1mV Accuracy (3.6V, 25°C)
    • 2mV Accuracy (5°C to 40°C)
    • 4.5mV Accuracy (-40°C to +125°C)
  • 14 Cell-Balancing Switches
    • > 300mA Software-Programmable Balancing Current
    • Optimized Driving and Parking Balancing Modes
    • Automated Balancing with Individual Cell Timers
    • Automated Balancing by Cell Voltage
    • Emergency Discharge Mode
  • Six Configurable Auxiliary Inputs for Temperature, Voltage, or GPIO
  • Integrated Die-Temperature Measurement
  • Automatic Thermal Protection
  • Individually Configurable Safety Alert
    • Overvoltage, Undertemperature Faults
    • Undervoltage, Overtemperature Faults
    • One Cell-Mismatch Alert
  • Support ASIL D Requirements for Cell Voltage, Temperature, Communication
  • Selectable UART, Dual UART, or SPI Interface
  • Battery-Management UART Protocol
    • Daisy-Chain Up to 32 Devices
    • Capacitive Communication-Port Isolation
    • Up to 2Mbps Baud Rate (auto-detect)
    • 1.5µs Propagation Delay (per device)
    • Packet-Error Checking (PEC)
  • Configurable Hardware-Alert Interfaces
  • Factory-Trimmed Oscillator
    • No External Crystals Required
  • 32-Bit Unique Device ID
  • 64-Pin (10mm x 10mm) LQFP Package
MAX20342 USB Type-C Charger Detector with Integrated OVP

MAX20342 USB Type-C Charger Detector with Integrated OVP

The MAX20342 is a USB Type-C® charger detector that is also capable of detecting chargers compli...
  • Low Power Consumption
    • Battery Standby Current 17µA (typ)
    • Battery Shutdown Current 2.5µA (typ)
  • Delivers USB Compliance and Flexibility
    • Compliant with USB Type-C Specification Revision 1.3
    • Compliant with USB Battery Charger Specification Revision 1.2
    • Detects Proprietary Chargers such as Apple® and Samsung®
  • Simplifies Complex System Designs
    • Integrated Overvoltage Protection
    • Negative Swing Audio Capable Hi-Speed USB/UART Switches
    • Automatic Switch and Charger Interface Control
    • Full Control through I2C Interface
    • Interrupts for Device Status Changes
  • Improves Quality and Reliability
    • Automatic Factory Mode Configuration
    • USB Type-C Port Moisture Detection
    • Low-Corrosion DRP Mode
  • Robust Protection
    • VB Connection Withstands up to +30V
    • VB Surge Protection up to ±120V
    • ±15kV HBM ESD Protection on CC1, CC2, SBU1 and SBU2 Pins
    • ±6kV HBM ESD Protection on CDP and CDN Pins
    • ±15kV Air-Gap IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
    • ±8kV Contact Discharge IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
  • Saves Board Space
    • 2.62mm x 2.02mm WLP Package
MAX77751 3.15A USB Type-C Autonomous Charger for 1-Cell Li+ Batteries

MAX77751 3.15A USB Type-C Autonomous Charger for 1-Cell Li+ Batteries

The MAX77751 is a standalone, 3.15A charger with integrated USB Type-C® CC detection and reverse...
  • Up to 16V Protection
  • 13.7V Maximum Input Operating Voltage
  • 3.15A Maximum Charging Current
  • 6A Discharge Current Protection
  • No Firmware or Communication Required
  • Integrated USB Detection
    • CC Detection for USB Type-C
    • BC1.2 Detection for Legacy SDP, DCP, and CDP
    • Automatic Input Current Limit Configuration
    • Input Voltage Regulation with Adaptive Input Current Limit (AICL)
  • Reverse Boost Capability up to 5.1V, 1.5A
  • Pin Control of All Functions
    • Resistor-Configurable Fast-Charge Current
    • Resistor-Configurable Top-Off Current
    • ENBST Pin to Enable and Disable Reverse Boost
    • STAT Pin to Indicate Charging Status
    • INOKB Pin to Indicate Input Power-OK (POK)
    • ITOPOFF Pin to Disable Charge
  • Integrated Battery True-Disconnect FET
  • 3mm x 3mm, 24 Lead FC2QFN Package
MAX17320 2S-4S ModelGauge m5 EZ Fuel Gauge with Protector, Internal Self-Discharge Detection, and SHA-256 Authentication

MAX17320 2S-4S ModelGauge m5 EZ Fuel Gauge with Protector, Internal Self-Discharge Detection, and SHA-256 Authentication

The MAX17320 is a 38µA IQ stand-alone pack-side fuel gauge IC with protector, battery internal s...
  • Battery Health + Programmable Safety/Protection
    • Overvoltage (Temperature Dependent)
    • Overcharge/Overdischarge/Short-Circuit Current
    • Over/Undertemperature
    • Undervoltage + SmartEmpty
    • Battery Internal Self-Discharge Detection
    • Ideal Diode Discharge During Charge Fault
    • Charging Prescriptions (JEITA)
    • Prequal Charge Control with CHG FET
  • ModelGauge m5 EZ Algorithm
    • Percent, Capacity, Time-to-Empty/Full, Age
    • Cycle+™ Age Forecast
  • Precision Measurement Without Calibration
    • Current, Voltage, Power, Time, Cycles
    • Die Temperature, 4 Thermistors ±1°C
  • Cell Balancing with Internal FETs
  • SHA-256 Authentication
  • Nonvolatile Memory for Stand-Alone Operation
    • History Logging, User Data (84 Bytes)
  • Low Quiescent Current
    • FETs Enabled: 38µA Active
  • Pushbutton Wakeup—Eliminates System Consumption Until Button Press
  • Always-On LDO
  • Dynamic Power—Estimates Power Capability
  • SBS 1.1 Compatible Register Set
MAX17701 4.5V to 60V, Synchronous Step-Down Supercapacitor Charger Controller

MAX17701 4.5V to 60V, Synchronous Step-Down Supercapacitor Charger Controller

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Optimized Feature Set for Supercapacitor Charging
    • ±4% Charging Current Regulation Accuracy
    • ±6% Charging Current Monitor Accuracy (ISMON)
    • ±1% Voltage Regulation Accuracy
    • Programmable CC Mode Charging Current (ILIM)
    • Wide 4.5V to 60V Input-Voltage Range
    • Adjustable Output-Voltage Range from 1.25V Up To (VDCIN - 4V)
    • 125kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization (RT/SYNC)
  • Reliable Operation in Adverse Environmental Conditions
    • Input Short-Circuit Protection (GATEN)
    • Safety Timer Feature (TMR)
    • Output Overvoltage Protection (OVI)
    • Cycle-by-Cycle Overcurrent Limit
    • Programmable EN/UVLO Threshold
    • Fault Monitoring Open-Drain Output (FLG)
    • Overtemperature Protection
    • Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range
MAX77962 23V<sub>IN</sub> 3.2A<sub>OUT</sub> USB-C Buck-Boost Charger with Integrated FETs for 2S Li-Ion Batteries

MAX77962 23VIN 3.2AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S Li-Ion Batteries

The MAX77962 is a high-performance wide-input 3.2A buck-boost charger with a Smart Power Selecto...
  • 3.5V to 23V Input Operating Range, 30VDC Withstand Voltage
  • Reverse Leakage Protection
  • 50mA to 3.15A Programmable Input Current Limit
  • 50mA to 3.2A Programmable Constant Current Charge
  • Remote Differential Voltage Sensing
  • 600kHz or 1.2MHz Switching Frequency Options
  • System Instant On with Smart Power Selector Power-Path
  • ​Charge Safety Timer
  • Die Temperature Regulation with Thermal Foldback Loop
  • Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation
  • 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold
  • ​Reverse Buck Mode 5.1V/1.5A to Support USB OTG
  • JEITA Compliant with NTC Thermistor Monitor
  • I2C or Resistor Programmable
  • 3.458mm x 3.458mm 49-Bump WLP
MAX17823B 12-Channel High-Voltage Data Acquisition System

MAX17823B 12-Channel High-Voltage Data Acquisition System

The MAX17823B is a data acquisition system for the management of high-voltage battery modules. T...
  • AEC-Q100 Grade 2 Temperature Range
    • -40°C to +105°C
  • Operating Voltage from 9V to 65V
  • Ultra-Low-Power Operation
    • Standby Mode: 2mA
    • Shutdown Mode: 2μA
  • 12 Cell-Voltage-Measurement Channels
    • 2mV Accuracy (3.6V, +25° C)
    • 5mV Accuracy (0°C to +45°C)
    • 10mV Accuracy (-40°C to +105°C)
  • 12 Cell-Balancing Switches
    • Up to 150mA per Switch
    • Emergency-Discharge Mode
  • Two Temperature-Measurement Channels
  • Die Temperature Measurement
  • Automatic Thermal Protection
  • 29 Voltage Threshold Alerts
    • 12 Over-Voltage Faults
    • 12 Under-Voltage Faults
    • Two Over-Temperature Faults
    • Two Under-Temperature Faults
    • One Cell Mismatch Alert (highest cell versus lowest cell)
  • Four GPIOs
  • Built-in Diagnostics to Support ASIL D and FMEA Requirements
  • Battery-Management UART Protocol
    • Daisy-Chain Up to 32 Devices
    • Communication Port Isolation
    • Up to 2Mbps Baud Rate (Autodetect)
    • 1.5&micros Propagation Delay per Device
    • Packet-Error Checking (PEC)
  • Factory-Trimmed Oscillators
    • No External Crystals Required
  • 10mm x 10mm Package (64-Pin LQFP)
MAX17841B Automotive SPI Communication Interface (ASCI)

MAX17841B Automotive SPI Communication Interface (ASCI)

The MAX17841B ASCI combines an SPI port with a universal asynchronous receiver transmitter (UART...
  • Supports Maxim’s Battery Management UART Protocol
  • SPI Interface Up to 4MHz
  • UART Baud Rate Programmable Up to 2Mbps
  • 3.3V or 5V Operation
  • Ultra-Low Quiescent Current
  • Transmit and Receive Buffers with Programmable Interrupts Allow for Queuing of UART Messages
  • Manchester Encoder and Decoder Reduces Host Controller Burden
  • Operating Temperature Range from -40°C to +105°C (AEC-Q100 Type 2)
  • Supports ASIL Requirements

MAX11068 12-Channel, High-Voltage Sensor, Smart Data-Acquisition Interface

The MAX11068 is a programmable, highly integrated, high-voltage, 12-channel, battery-monitoring ...
  • 12-Cell Battery Voltage Measurement with Temperature Monitoring
    • Up to 12 Lithium-Ion (Li+), NiMH, or Super-Cap Cells
    • Two Auxiliary Analog Inputs for Temperature Measurement
  • High-Accuracy I/Os
    • Excellent ±0.25% Voltage-Measurement Accuracy
    • ≤ 5mV Offset Voltage
  • Integrated 12-Channel Data-Acquisition System
    • 12-Channel High-Voltage Mux to ADC
    • Differential Cell-Voltage Measurement
    • 12-Bit Precision, High-Speed SAR ADC
    • 12 Cell Voltages Measured Within 107µs
  • Battery-Fault Detection
    • Overvoltage and Undervoltage Digital Threshold Detection
    • Cell Sense Line Open-Circuit Detection
    • High/Low Temperature Digital Threshold Detection
  • 12 Integrated Cell-Equalization Switches Support Up to 200mA
  • Integrated 6V to 70V Input Linear Regulator
  • Integrated 25ppm/°C, 2.5V Precision Reference
  • Integrated Level-Shifted, I²C-Compliant SMBus
    • Ladder Interface
    • Supports Multiple Devices, Up to 31 SMBus-Ladder-Connected ICs
    • Communications Protocol with Autoaddressing
    • Fault-Tolerant Hardware Handshake and Data CRC Checking
  • Three General-Purpose Digital I/O Lines
  • Ultra-Low Power Dissipation
    • Standby Mode Quiescent Current Drain 75µA
    • Shutdown Mode Leakage Current 1µA
  • Operating Temperature Range from -40°C to +105°C (AEC-Q100 Grade 2)
  • 38-Pin, Lead-Free/RoHS-Compliant TSSOP Package (9.7mm x 4.4mm)
MAX20345 PMIC with Ultra-Low I<sub>Q</sub> Voltage Regulators, Buck-Boost for Optical Sensing and Charger for Small Lithium Ion Systems

MAX20345 PMIC with Ultra-Low IQ Voltage Regulators, Buck-Boost for Optical Sensing and Charger for Small Lithium Ion Systems

The MAX20345 is a power management solution featuring ultra-low IQ voltage regulators, ideal for...
  • Extend Battery-Use Time Between Charging
    • 3 x Low IQ Buck Regulators (IQ = 0.9μA typ)
      • 220mA Output Current
      • Noise Mitigation by Flexible Adjustment of Switching Frequency
      • Buck1: 0.700V to 1.330V Output Voltage in 10mV Steps
      • Buck2: 0.700V to 2.275V Output Voltage in 25mV Steps
      • Buck3: 0.700V to 3.850V Output Voltage in 50mV Steps
    • LDO1 (IQ = 0.55µA typ)
      • 100mA Output
      • 2.7V to 5.5V Input Voltage Range
      • 0.8V to 3.6V Output Voltage in 100mV Steps
    • LDO2 (IQ = 1µA typ)
      • 100mA Output
      • 1.71V to 5.50V Input Voltage Range
      • 0.9V to 4.0V Output Voltage in 100mV Steps
    • LDO3 (IQ = 1µA typ)
      • 50mA Output
      • 1.00V to 2.00V Input Voltage Range
      • 0.50V to 1.95V Output Voltage in 25mV Steps
    • 2 x Load Switches
      • 0.65V to 5.50V Input Voltage Range
      • 1Ω RON at SYS = 3.0V
    • Low IQ Buck-Boost Regulator (IQ = 2µA typ)
      • 1.5W Output Capability
      • 2.6V to 5.5V Output Voltage in 50mV Steps
  • Easy to Implement Li+ Battery Charging
    • Linear Li-Ion Battery Charger
      • 5mA to 500mA Charge current
      • +28V / -5.5V Tolerant Input
      • Step Charging (See the Step Charging Section)
    • Thermistor Monitor
    • Smart Power Selector
  • Optimize System Control
    • Power On/ Reset Controller
    • Push-Button Monitor
    • Factory Shipping Mode
    • System Interface
      • Monitor Multiplexer with Programmable Divider to Monitor System Voltages and Charging Current
MAX14750 Power-Management Solution

MAX14750 Power-Management Solution

The MAX14720/MAX14750 are compact power-management solutions for space-constrained, battery-powe...
  • Extended System Battery Use Time
    • Micro-IQ 250mW Buck-Boost Regulator
      • Input Voltage from 1.8V to 5.5V
      • Output Voltage Programmable from 2.5V to 5V
      • 1.1µA Quiescent Current
      • Programmable Current Limit
    • Micro-IQ 200mA Buck Regulator
      • Input Voltage from 1.8V to 5.5V
      • Output Voltage Programmable from 1.0V to 2.0V
      • 0.9µA Quiescent Current
    • Micro-IQ 100mA LDO
      • Input Voltage From 1.71V to 5.5V
      • Output Programmable From 0.9V to 4.0V
      • 0. 9µA Quiescent Current
      • Configurable as Load Switch
  • Extend Product Shelf-Life
    • Battery Seal Mode (MAX14720)
      • 120nA Battery Current
    • Power Switch On-Resistance
      • 250mΩ (max) at 2.7V
      • 500mΩ (max) at 1.8V
    • Battery Impedance Detector
  • Easy-to-Implement System Control
    • Configurable Power Mode and Reset Behavior (MAX14720)
      • Push-Button Monitoring to Enable Ultra-Low Power Shipping Mode
      • Disconnects All Loads From Battery and Reduces Leakage to Less than 1µA
      • Power-On Reset (POR) Delay and Voltage Sequencing
    • Individual Enable Pins (MAX14750)
    • Voltage Monitor Multiplexer
    • I2C Control Interface
MAX14720 Power-Management Solution

MAX14720 Power-Management Solution

The MAX14720/MAX14750 are compact power-management solutions for space-constrained, battery-powe...
  • Extended System Battery Use Time
    • Micro-IQ 250mW Buck-Boost Regulator
      • Input Voltage from 1.8V to 5.5V
      • Output Voltage Programmable from 2.5V to 5V
      • 1.1µA Quiescent Current
      • Programmable Current Limit
    • Micro-IQ 200mA Buck Regulator
      • Input Voltage from 1.8V to 5.5V
      • Output Voltage Programmable from 1.0V to 2.0V
      • 0.9µA Quiescent Current
    • Micro-IQ 100mA LDO
      • Input Voltage From 1.71V to 5.5V
      • Output Programmable From 0.9V to 4.0V
      • 0. 9µA Quiescent Current
      • Configurable as Load Switch
  • Extend Product Shelf-Life
    • Battery Seal Mode (MAX14720)
      • 120nA Battery Current
    • Power Switch On-Resistance
      • 250mΩ (max) at 2.7V
      • 500mΩ (max) at 1.8V
    • Battery Impedance Detector
  • Easy-to-Implement System Control
    • Configurable Power Mode and Reset Behavior (MAX14720)
      • Push-Button Monitoring to Enable Ultra-Low Power Shipping Mode
      • Disconnects All Loads From Battery and Reduces Leakage to Less than 1µA
      • Power-On Reset (POR) Delay and Voltage Sequencing
    • Individual Enable Pins (MAX14750)
    • Voltage Monitor Multiplexer
    • I2C Control Interface
MAX20303 PMIC with Ultra Low I<sub>Q</sub> Voltage Regulators, Battery Charger and Fuel Gauge for Small Lithium Ion Systems

MAX20303 PMIC with Ultra Low IQ Voltage Regulators, Battery Charger and Fuel Gauge for Small Lithium Ion Systems

The MAX20303 is a highly integrated and programmable power management solution designed for ultr...
  • Extend Battery Use Time Between Battery Charging
    • 2 x Micro-IQ Buck Regulators (<1&microA IQ (typ) Each)
      • 220mA Output
      • Buck1: 0.8V to 2.375V in 25mV Steps
      • Buck2: 0.8V to 3.95V in 50mV Steps
    • Micro-IQ LV LDO/Load Switch (1µA IQ (typ))
      • 1.16V to 2.0V Input Voltage
      • 50mA Output
      • 0.5V to 1.95V Output, 25mV Steps
    • Micro-IQ LDO/Load Switch (1&microA IQ (typ))
      • 1.71V to 5.5V Input Voltage
      • 100mA Output
      • 0.9V to 4V, 100mV Steps
    • Micro-IQ Buck-Boost Regulator (1.3µA IQ (typ))
      • 250mW Output
      • 2.5V to 5V in 100mV Steps
  • Easy-to-Implement Li+ Battery Charging
    • Wide Fast Charge Current Range: 5mA to 500mA
    • Smart Power Selector
      • 28V/-5.5V Tolerant Input
      • Programmable JEITA Current/Voltage Profiles
  • Minimize Solution Footprint Through High Integration
    • Safe Output LDO
      • 15mA When CHGIN Present
      • 5V or 3.3V
    • Haptic Driver
      • ERM/LRA Driver with Quick Start And Breaking
      • Automatic Resonance Tracking (LRA only)
    • Support Wide Variety of Display Options
      • Micro-IQ Boost Regulator (2.4µA IQ(typ))
        • 300mW Output
        • 5V to 20V in 250mV Step
      • 3 Channel Current Sinks
        • 20V Tolerant
        • Programmable from 0.6 to 30mA
    • Optimize System Control
      • Power-On/Reset Controller
      • Programmable Push-Button Controller
      • Programmable Supply Sequencing
      • Factory Shelf Mode
      • On-Chip Voltage Monitor Multiplexer and Analog-to-Digital Converter (ADC)
MAX17843 12-Channel, High-Voltage Smart Sensor Data-Acquisition Interface

MAX17843 12-Channel, High-Voltage Smart Sensor Data-Acquisition Interface

The MAX17843 is a programmable, highly integrated, high-voltage, 12-channel battery-monitoring s...
  • 12-Cell Battery-Voltage Measurement for Lithium-Ion, NiMH, or Super-Cap Cells
  • Two Auxiliary Analog Inputs for NTC Thermistor or Absolute Voltage Measurement
  • Die Temperature Measurement and alert
  • High-Accuracy Differential Measurement I/Os
    • ±2mV Accuracy at +25°C and 3.6V
  • Integrated 12-Channel Data-Acquisition System
    • Differential High-Voltage Mux to ADC
    • 14-Bit ADC Resolution with Oversampling
    • 12 Cell Voltages Measured within 142μs
    • Module Voltage Measurement
    • Redundant ADC
  • Battery Fault Detection
    • Overvoltage and Undervoltage Digital Threshold Detection
    • Enhanced Diagnostic Features for Fault Detection to Support ASIL and FMEA
  • 12 Internal Cell-Balancing Switches
    • Support Up to 150mA per Switch
    • Emergency Cell-Discharge Mode
  • Integrated 9V to 65V Input Linear Regulator
  • Integrated Temperature-Compensated, Voltage Reference
  • Robust Differential Daisy-Chain UART Interface
    • Up to 32 Connected ICs in a Single Daisy-Chain
    • Compatible with Direct MCU Connection
    • Standard UART bytes at 2Mb/s (max) Rate
  • Four General-Purpose Digital I/O Lines
  • Built-In Diagnostics to Support ASIL D and FMEA Requirements
  • Ultra-Low-Power Dissipation
    • 2.0mA (typ) Standby-Mode Supply Current
    • 3µA Shutdown Mode Leakage Current
  • -40°C to +125°C Operating Temperature Range (AEC-Q100 Grade 1)
  • 64-Pin, Lead-Free/RoHS-Compliant, 10mm x 10mm LQFP Package

MAX17823H 12-Channel, High-Voltage Data-Acquisition Systems

The MAX17823H is a data acquisition system for the management of high-voltage battery modules. T...
  • AEC-Q100 Grade 2 Temperature Range
    • -40°C to 105°C
  • Operating Voltage from 9V to 65V
  • Ultra-Low Power Operation
    • Standby Mode: 2mA
    • Shutdown Mode: 2µA
  • 12 Cell-Voltage Measurement Channels
    • 2mV Accuracy (3.6V, +25°C)
    • 5mV Accuracy (0°C to +45°C)
    • 10mV Accuracy (-40°C to +105°C)
  • 12 Cell-Balancing Switches
    • Up to 650mA per switch
    • Emergency Discharge Mode
  • 2 Temperature Measurement Channels
  • Die Temperature Measurement
  • Automatic Thermal Protection
  • 29 Voltage Threshold Alerts
    • 12 Overvoltage Faults
    • 12 Undervoltage Faults
    • 2 Overtemperature Faults
    • 2 Undertemperature Faults
    • 1 Cell Mismatch Alert
  • 4 GPIOs
  • Built-in Diagnostics to Support ASIL-D and FMEA Requirements
  • Battery-Management UART Protocol
    • Daisy-Chain up to 32 Devices
    • Communication Port Isolation
    • Up to 2 Mbps Baud Rate (auto-detect)
    • 1.5µs Propagation Delay per Device
    • Packet-Error Checking (PEC)
  • Factory-Trimmed Oscillators
    • No External Crystals Required
  • 10mm x 10mm Package (64-pin LQFP)

Design Solutions

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Software & Design Tools

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MAX17055XEVKIT

Combines coulomb counting and voltage fuel gauging for highest SOC accuracy.

Battery Chargers