MAX6335
4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
Industry's-First Stand-Alone Reset ICs for 1.8V supplies with Manual Reset in SOT Package
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Key Features
Applications/Uses
| Reset Thresh. (V) | 1.2 to 1.8 1.8 to 2.5 |
| Reset Thresh. Accur. (%) (@ +25°C) | 1.8 |
| Reset Out | Active High Push-Pull |
| tRESET (min) | 1ms to 15ms 15ms to 85ms 85ms to 300ms |
| Watchdog Feature | No Watchdog |
| Supervisor Features | Manual Reset |
| ICC (µA) (max) | 7 |
| Package/Pins | SOT23/4 |
| Budgetary Price (See Notes) | 1.69 |
Simplified Block Diagram
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Sampling:
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Parameters
| Reset Thresh. (V) | 1.2 to 1.8 1.8 to 2.5 |
| Reset Thresh. Accur. (%) (@ +25°C) | 1.8 |
| Reset Out | Active High Push-Pull |
| tRESET (min) | 1ms to 15ms 15ms to 85ms 85ms to 300ms |
| Watchdog Feature | No Watchdog |
| Supervisor Features | Manual Reset |
| ICC (µA) (max) | 7 |
| Package/Pins | SOT23/4 |
| Budgetary Price (See Notes) | 1.69 |
Key Features
- Ultra-Low 0.7V Operating Supply Voltage
- Low 3.3µA Supply Current
- Precision Monitoring of 1.8V and 2.5V Power-Supply Voltages
- Reset Thresholds Available from 1.6V to 2.5V, in Approximately 100mV Increments
- Debounced Manual Reset
- Fully Specified over Temperature
- Three Power-On Reset Pulse Widths Available (1ms min, 20ms min, 100ms min)
- Low Cost
- Three Available Output Structures: Push/Pull active-low RESET, Push/Pull RESET, Open-Drain active-low RESET
- Guaranteed RESET/active-low RESET Valid to VCC = 0.7V (MAX6335/MAX6336)
- Power-Supply Transient Immunity
- No External Components
- 4-Pin SOT143 Package
- Pin-Compatible with MAX811/MAX812 and MAX6314/MAX6315
Applications/Uses
- Automotive Electronics
- Computers: Desktop, Workstation, Server
- Controllers
- Critical µP and µC Power Monitoring
- Intelligent Instruments
- Pentium® II Computers
- Portable Battery-Powered Equipment
Description
These devices perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold or whenever manual reset is asserted. Reset remains asserted for a preset timeout period after VCC has risen above the reset threshold or after manual reset is deasserted. The only difference among the three devices is their output. The MAX6336 (push/pull) and MAX6337 (open-drain) have an active-low RESET output, while the MAX6335 (push/pull) has an active-high RESET output. The MAX6335/MAX6336 are guaranteed to be in the correct state for VCC down to 0.7V. The MAX6337 is guaranteed to be in the correct state for VCC down to 1.0V.
The reset comparator in these ICs is designed to ignore fast transients on VCC. Reset thresholds are factory-trimmable between 1.6V and 2.5V, in approximately 100mV increments. There are 15 standard versions available (2500 piece minimum-order quantity); contact the factory for availability of nonstandard versions (10,000 piece minimum-order quantity). For space-critical applications, the MAX6335/MAX6336/MAX6337 come packaged in a 4-pin SOT143.
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 .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.
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