The TPS3703A7125DSERQ1 device is an integrated overvoltage (OV) and undervoltage (UV) monitor orreset IC in industry’s smallest 6-pin DSE package. This highly accurate voltage supervisor is idealfor systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Lowthreshold hysteresis prevent false reset signals when the monitored voltage supply is in its normalrange of operation. Internal glitch immunity and noise filters further eliminate false resetsresulting from erroneous signals.
The TPS3703A7125DSERQ1 does not require any external resistors for setting overvoltage andundervoltage reset thresholds, which further optimizes overall accuracy, cost, solution size, andimproves reliability for safety systems. The Capacitor Time (CT) pin is used to select between thetwo available reset time delays designed into each device and also to adjust the reset time delayby connecting a capacitor. A separate SENSE input pin and VDD pin allow for the redundancy soughtby high-reliability systems.
This device has a low typical quiescent current specification of 4.5 μA (typical).The TPS3703A7125DSERQ1 is suitable for automotive applications and is qualified for AEC-Q100 Grade1.
Feature
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
- Input voltage range: 1.7 V to 5.5 V
- Undervoltage lockout (UVLO): 1.7 V
- Low quiescent current: 7 μA (Max)
- High threshold accuracy:
- ± 0.25% (typical)
- ± 0.7% (–40°C to +125°C)
- Fixed window threshold levels
- 50-mV steps from 500 mV to 1.3 V
- 1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.9 V 3.3 V, 5 V
- Available in UV threshold only
- Window tolerance available from ±3% to ±7%
- User adjustable voltage threshold levels
- Internal glitch immunity and hysteresis
- Fixed time delay options: 50 μs, 1 ms, 5 ms, 10 ms, 20 ms, 100 ms, 200 ms
- Programmable time delay option with a single external capacitor
- Open-drain active low UV and OV monitor
- RESET voltage latching output mode
