TPS3870 Series
Automotive high-accuracy overvoltage reset IC with time delay and manual reset
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Threshold▲▼ | Package / Case | Reset | Output | Type | Reset Timeout▲▼ | Number of Voltages Monitored▲▼ | Mounting Type | Grade | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS3870J4330DSERQ1Supervisor Open Drain or Open Collector 1 Channel 6-WSON (1.5x1.5) | 125 °C | -40 °C | 3.299999952316284 V | 6-WFDFN | Active Low | Open Drain or Open Collector | Simple Reset/Power-On Reset | 0.14000000059604645 s | 1 ul | Surface Mount | Automotive | AEC-Q100 |
Key Features
• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2Device CDM ESD classification level C7BInput voltage range: 1.7 V to 5.5 VUndervoltage lockout (UVLO): 1.7 VLow quiescent current: 7 µA (Max)High threshold accuracy:± 0.25% (typical)± 0.7% (–40°C to +125°C)Fixed threshold levels50-mV steps from 500 mV to 1.3 V1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.9 V 3.3 V, 5 VUser adjustable voltage threshold levelsInternal glitch immunity and hysteresisTolerance available from 3% to 7% in 1% stepsFixed time delay options: 50 µs, 1 ms, 5 ms, 10 ms, 20 ms, 100 ms, 200 msProgrammable time delay option with a single external capacitorOpen-drain active low OV monitorRESETvoltage latching output modeQualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2Device CDM ESD classification level C7BInput voltage range: 1.7 V to 5.5 VUndervoltage lockout (UVLO): 1.7 VLow quiescent current: 7 µA (Max)High threshold accuracy:± 0.25% (typical)± 0.7% (–40°C to +125°C)Fixed threshold levels50-mV steps from 500 mV to 1.3 V1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.9 V 3.3 V, 5 VUser adjustable voltage threshold levelsInternal glitch immunity and hysteresisTolerance available from 3% to 7% in 1% stepsFixed time delay options: 50 µs, 1 ms, 5 ms, 10 ms, 20 ms, 100 ms, 200 msProgrammable time delay option with a single external capacitorOpen-drain active low OV monitorRESETvoltage latching output mode
Description
AI
The TPS3870-Q1 device is an integrated overvoltage (OV) monitor or reset IC in industry’s smallest 6-pin DSE package. This highly accurate voltage supervisor is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Low threshold hysteresis 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 TPS3870-Q1 does not require any external resistors for setting overvoltage reset thresholds, which further optimizes overall accuracy, cost, solution size, and improves reliability for safety systems. The Capacitor Time (CT) pin is used to select between the two available reset time delays designed into each device and also to adjust the reset time delay by connecting a capacitor. A separate SENSE input pin and VDD pin allow for the redundancy sought by high-reliability systems.
This device has a low typical quiescent current specification of 4.5 µA (typical). The TPS3870-Q1 is suitable for automotive applications and is qualified for AEC-Q100 Grade 1.
The TPS3870-Q1 device is an integrated overvoltage (OV) monitor or reset IC in industry’s smallest 6-pin DSE package. This highly accurate voltage supervisor is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Low threshold hysteresis 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 TPS3870-Q1 does not require any external resistors for setting overvoltage reset thresholds, which further optimizes overall accuracy, cost, solution size, and improves reliability for safety systems. The Capacitor Time (CT) pin is used to select between the two available reset time delays designed into each device and also to adjust the reset time delay by connecting a capacitor. A separate SENSE input pin and VDD pin allow for the redundancy sought by high-reliability systems.
This device has a low typical quiescent current specification of 4.5 µA (typical). The TPS3870-Q1 is suitable for automotive applications and is qualified for AEC-Q100 Grade 1.