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MAX1736
SOT23, Single-Cell Li+ Battery Charger for Current-Limited Supply
SOT23, Single-Cell Li+ Battery Charger
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Key Features
Applications/Uses
Parametric specs for Battery Chargers
| Package/Pins | SOT23/6 |
| Budgetary Price (See Notes) | 1.58 |
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Parameters
Parametric specs for Battery Chargers
| Package/Pins | SOT23/6 |
| Budgetary Price (See Notes) | 1.58 |
Key Features
- Small 6-Pin SOT23 Package
- Stand-Alone or µP-Controlled Operation
- 0.5% Voltage Set-Point Accuracy
- Lowest Power Dissipation
- Low 4.7V min Input Voltage
- Top-Off Charging to Achieve Full Battery Capacity
- No Inductor Required
- Safely Precharges Near-Dead Cells
- Automatic Power-Down when Input Power Removed
Applications/Uses
- Cradle Chargers
- Digital Still Cameras
- PDAs and Other Handheld Devices
- Self-Charging Battery Packs
- Single-Cell Li+ Portable Applications
- Small Handheld Equipment
- Wireless Handsets
Description
The MAX1736 is a simple, low-cost, single-cell lithium-ion (Li+) battery charger for small hand-held applications. When accompanied by a current-limited voltage source (such as a wall cube), the MAX1736 provides simple, accurate charging and termination control for single-cell Li+ batteries. The MAX1736EUT42 is preset to a 4.2V battery regulation voltage, while the MAX1736EUT41 is preset to 4.1V.
The MAX1736 initiates charging in one of four ways: battery insertion, charger power-up, battery voltage threshold, and by external manipulation of the EN pin. The device features an internal precharge current source that safely charges near-dead cells, as well as input-supply detection that shuts down the MAX1736 when the supply is removed to minimize battery current drain.
The MAX1736 accepts input voltages up to 22V, making it compatible with a wide range of input supplies. It has a single control input yet offers stand-alone and microprocessor-controlled operation. The MAX1736 is packaged in a small SOT23-6 package. An evaluation kit (EV kit) is available to reduce design time.
The MAX1736 initiates charging in one of four ways: battery insertion, charger power-up, battery voltage threshold, and by external manipulation of the EN pin. The device features an internal precharge current source that safely charges near-dead cells, as well as input-supply detection that shuts down the MAX1736 when the supply is removed to minimize battery current drain.
The MAX1736 accepts input voltages up to 22V, making it compatible with a wide range of input supplies. It has a single control input yet offers stand-alone and microprocessor-controlled operation. The MAX1736 is packaged in a small SOT23-6 package. An evaluation kit (EV kit) is available to reduce design time.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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