Automotive high-accuracy window voltage detector for overvoltage and undervoltage monitoring
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 Qualified:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Input Voltage Range: 2 V to 18 V
- High Threshold Accuracy:
- 0.25% (typ)
- 0.9% (–40°C to 125°C)
- Fixed Window Thresholds Optimized for Nominal Rails Between 1 V and 5 V
- Open-Drain Outputs for Overvoltage and Undervoltage Indication
- Internal Glitch Immunity
- Threshold Adjust Using the SET Pin
- Low Quiescent Current: 7 µA (typ)
- Internal Threshold Hysteresis: 0.55%, 1.0%
- SOT-6 Package
Description
The TPS3702-Q1 is an integrated overvoltage and undervoltage window comparator in a small SOT-6 package. This highly accurate voltage detector is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Low threshold hysteresis options of 0.55% and 1.0% prevent false reset signals when the monitored voltage supply is in its normal range of operation. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals.
The TPS3702-Q1 does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further increases overall accuracy and reduces solution size and cost. The SET pin is used to select between the two available threshold voltages designed into each device. A separate SENSE input pin and VDD pin allow for the redundancy sought by safety-critical and high-reliability systems. This device also features independent reset outputs for the OV and UV pins; as a result of the open-drain configuration, UV and OV can be tied together.
This device has a low typical quiescent current specification of 7 µA. The TPS3702-Q1 is suitable for automotive applications and is qualified for AEC-Q100 Grade 1.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS3702-Q1 High-Accuracy, Overvoltage and Undervoltage Monitor datasheet (Rev. B) | Dec. 18, 2015 |
Functional safety information | TPS3702-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | Mar. 01, 2021 | |
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun. 28, 2019 | |
Selection guide | Automotive Supervisor and Reset IC Selection Guide | Feb. 22, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS3702CX33EVM-683 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS3702, which is a low power, high accuracy over-voltage and under-voltage detector that is available with fixed threshold options. The EVM circuit is configured to be a reference design for (...)
Features
- 1% overall accuracy
- Internal hysteresis options of 0.5% and 1%
- Low supply current (8 uA typ)
- Open drain outputs
- SET pin to select ±5% and ±10% thresholds
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Design files
-
download TIDA-020002 BOM.pdf (98KB) -
download TIDA-020002 Assembly Drawing.pdf (117KB) -
download TIDA-020002 PCB.pdf (1299KB) -
download TIDA-020002 CAD Files.zip (824KB) -
download TIDA-020002 Gerber.zip (587KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23-THIN (DDC) | 6 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.