Texas Instruments TPS389C03-Q1 Product Info

Parameters

Rating	Automotive
Number of supplies monitored	3
Threshold voltage 1 (typ) (V)	adjustable
Features	Detection time delay, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor
Reset threshold accuracy (%)	0.5
Iq (typ) (mA)	1
Output driver type/reset output	Active-low, Open-drain
Supply voltage (min) (V)	2.5
Supply voltage (max) (V)	5.5
TI functional safety category	Functional Safety-Compliant
Operating temperature range (°C)	-40 to 125

Package

WQFN (RTE)-16-9 mm² 3 x 3

Features

AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
Functional Safety-Capable
- Documentation to aid ISO 26262 system design
- Systematic capability up to ASIL D
- Hardware capability up to ASIL D
Q&A Watchdog to monitor SoC software operation
- Programmable OPEN/CLOSE watchdog timing through I2C (1ms to 864ms)
- Start-up delay for SoC boot up initialization (2ms to 3.46s)
- Programmable maximum violation count (up to 7) before WDO assertion
- Watchdog disable pin (WDE)
Monitor state-of-the art SOCs
- Three channels with three remote sense (TPS389C03-Q1)
- Input voltage range: 2.6V to 5.5V
- Undervoltage lockout (UVLO): 2.6V
- High threshold accuracy:
- ± 5mV (–40°C to +125°C)
- Built-in ADC for voltage readouts
- Fixed window threshold levels
  - 5mV steps from 0.2V to 1.475V
  - 20mV steps in other ranges
Miniature package and minimal component cost
- 3mm × 3mm QFN package
- User adjustable voltage threshold levels via I2C
- User adjustable glitch immunity and hysteresis levels via I2C
Designed for safety applications
- Error Signal Monitoring (ESM)
  - Programmable ESM delay via I2C (1ms to 864ms)
- Cyclic Redundancy Checking (CRC)
- Packet Error Checking (PEC)
- Active-low open-drain NIRQ, NRST, and WDO outputs

AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
Functional Safety-Capable
- Documentation to aid ISO 26262 system design
- Systematic capability up to ASIL D
- Hardware capability up to ASIL D
Q&A Watchdog to monitor SoC software operation
- Programmable OPEN/CLOSE watchdog timing through I2C (1ms to 864ms)
- Start-up delay for SoC boot up initialization (2ms to 3.46s)
- Programmable maximum violation count (up to 7) before WDO assertion
- Watchdog disable pin (WDE)
Monitor state-of-the art SOCs
- Three channels with three remote sense (TPS389C03-Q1)
- Input voltage range: 2.6V to 5.5V
- Undervoltage lockout (UVLO): 2.6V
- High threshold accuracy:
- ± 5mV (–40°C to +125°C)
- Built-in ADC for voltage readouts
- Fixed window threshold levels
  - 5mV steps from 0.2V to 1.475V
  - 20mV steps in other ranges
Miniature package and minimal component cost
- 3mm × 3mm QFN package
- User adjustable voltage threshold levels via I2C
- User adjustable glitch immunity and hysteresis levels via I2C
Designed for safety applications
- Error Signal Monitoring (ESM)
  - Programmable ESM delay via I2C (1ms to 864ms)
- Cyclic Redundancy Checking (CRC)
- Packet Error Checking (PEC)
- Active-low open-drain NIRQ, NRST, and WDO outputs

Description

The TPS389C03-Q1 device is an integrated multichannel window monitor reset IC with three remote sense pins available in a 16-pin 3mm × 3mm QFN package.

This highly accurate multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals. This TPS389C03-Q1 device does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, size, and improves reliability for safety systems. I2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. This device offers CRC error checking and a built-in ADC for voltage readouts to provide redundant error checking. The device has a built in Q&A watchdog and Error Signal monitor with independent watchdog enable and watchdog output.

ELECTRONIC COMPONENTS
All In One Distributor

TPS389C03-Q1

Automotive, 3-channel, overvoltage and undervoltage I²C programmable supervisor with Q&A watchdog

Texas Instruments TPS389C03-Q1 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

TPS389C03-Q1

Automotive, 3-channel, overvoltage and undervoltage I²C programmable supervisor with Q&A watchdog

Texas Instruments TPS389C03-Q1 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor