MAX16152
MAX16152
PRODUCTIONnanoPower Supervisor and Watchdog Timer
Ultra-Low-Current Supervisor with Dynamic Watchdog in Tiny SOT Package
- Part Models
- 2
- 1ku List Price
- Starting From $2.09
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Overview
- 400nA (typ) Supply Current
- 1.2V to 5.5V Operating Supply Range
- Monitors Supply Voltage and Provides System Reset Signal
- 1.5V to 5V Input Threshold Range in 100mV Increments
- Watchdog Function Detects Faulty Code Execution
- Open-Drain Reset and Watchdog Outputs
- Watchdog Timer Enable Input
- 6-Bump WLP Package
- 6-Pin SOT23 Package
- -40°C to +125°C Operating Temperature Range
The MAX16152/MAX16153/MAX16154/MAX16155 ultra-low-current supervisory circuits monitor a single system supply voltage and the integrity of code execution by a microprocessor or microcontroller. These supervisors assert the reset output whenever the VCC supply voltage is greater than the minimum operating voltage, but less than the reset threshold. After the supply voltage rises above the reset threshold, the reset output remains asserted for the reset timeout period, and then de-asserts. Reset voltage thresholds are available from 1.50V to 5.0V in approximately 100mV increments.
A watchdog timer circuit monitors microprocessor or microcontroller activity. During normal operation, the microprocessor or microcontroller should repeatedly toggle the watchdog input (WDI) before the supervisor’s watchdog timeout period elapses to confirm that the system is executing code properly. If the microprocessor or microcontroller does not provide a valid watchdog input transition before the timeout period expires, the supervisor asserts a watchdog (active-low WDO) output to signal that the system is not executing code as expected. The watchdog output pulse can be used to reset the microprocessor or microcontroller, or it may be used to interrupt the system to warn of execution errors. The MAX16152 and MAX16153 feature a manual reset input (active-low MR) to allow an external pushbutton or logic signal to initiate a reset pulse. The MAX16154 and MAX16155 feature a logic input (WD_EN) that allows the system to enable and disable the watchdog function.
The MAX16152 and MAX16154 are offered in a 0.86mm x 1.27mm, 6-bump WLP, while the MAX16153 and MAX16155 are offered in 6-pin SOT23 package. All devices operate over the -40°C to +125°C temperature range.
Applications
- Glucose Monitors/Patient Monitor
- Metering
- Portable/Battery-Powered Equipment
- Tablets/e-Readers/Mobile Devices
Documentation
Data Sheet 1
Technical Articles 2
Video 1
Product Selector Card 1
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX16152ABAD+ | WLCSP | ||
| MAX16152ABAD+T | WLCSP |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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IBIS Model 1
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