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MAX16033
Low-Power Battery-Backup Circuits in Small µDFN Packages
Industry's Smallest Supervisors Offer Precision Power-Supply Monitoring with Battery Backup
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Key Features
Applications/Uses
Parametric specs for Battery Backup Circuits
| Reset Thresh. (V) | 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5 |
| Reset Out | Active Low Open Drain Push-Pull |
| ICC (µA) (max) | 50 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | UDFN/10 |
| Budgetary Price (See Notes) | 2.9 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | Low-Power Battery-Backup Circuits in Small µDFN Packages | Sep 10, 2019 |
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 .
Parameters
Parametric specs for Battery Backup Circuits
| Reset Thresh. (V) | 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5 |
| Reset Out | Active Low Open Drain Push-Pull |
| ICC (µA) (max) | 50 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | UDFN/10 |
| Budgetary Price (See Notes) | 2.9 |
Key Features
- Low 1.2V Operating Supply Voltage
- Precision Monitoring of 5.0V, 3.3V, 3.0V, and 2.5V Power-Supply Voltages
- Independent Power-Fail Comparator
- Debounced Manual-Reset Input
- Watchdog Timer, 1.6s Timeout
- Battery-On Output Indicator
- Auxiliary User-Adjustable RESETIN
- Low 13µA Quiescent Supply Current
- Two Available Output Structures:
- Active-Low Push-Pull Reset
- Active-Low Open-Drain Reset
- Active-Low Reset Valid Down to 1.2V
- Power-Supply Transient Immunity
- 140ms (min) Reset Timeout Period
- Small 2mm x 2mm, 8-Pin and 10-Pin µDFN Packages
Applications/Uses
- Portable/Battery-Powered Equipment
- POS Equipment
- Critical µP/µC Power Monitoring
- Set-Top Boxes
- Controllers
- Computers
- Fax Machines
- Industrial Control
- Real-Time Clocks
- Intelligent Instruments
Description
The MAX16033–MAX16040 supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery-control functions in microprocessor (µP) systems. The devices significantly improve system reliability and accuracy compared to other ICs or discrete components. The MAX16033–MAX16040 provide µP reset, backup-battery switchover, power-fail warning, watchdog, and chip-enable gating features.
The MAX16033–MAX16040 operate from supply voltages up to 5.5V. The factory-set reset threshold voltage ranges from 2.32V to 4.63V. The devices feature a manual-reset input (MAX16033/MAX16037), a watchdog timer input (MAX16034/MAX16038), a battery-on output (MAX16035/MAX16039), an auxiliary adjustable reset input (MAX16036/MAX16040), and chip-enable gating (MAX16033–MAX16036). Each device includes a power-fail comparator and offers an active-low push-pull reset or an active-low open-drain reset.
The MAX16033–MAX16040 are available in 2mm x 2mm, 8-pin or 10-pin µDFN packages and are fully specified from -40°C to +85°C.
The MAX16033–MAX16040 operate from supply voltages up to 5.5V. The factory-set reset threshold voltage ranges from 2.32V to 4.63V. The devices feature a manual-reset input (MAX16033/MAX16037), a watchdog timer input (MAX16034/MAX16038), a battery-on output (MAX16035/MAX16039), an auxiliary adjustable reset input (MAX16036/MAX16040), and chip-enable gating (MAX16033–MAX16036). Each device includes a power-fail comparator and offers an active-low push-pull reset or an active-low open-drain reset.
The MAX16033–MAX16040 are available in 2mm x 2mm, 8-pin or 10-pin µDFN packages and are fully specified from -40°C to +85°C.
Technical Docs
| Data Sheet | Low-Power Battery-Backup Circuits in Small µDFN Packages | Sep 10, 2019 |
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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