TPS389006-Q1 Series
Automotive multichannel overvoltage and undervoltage I²C programmable voltage supervisor and monitor
Manufacturer: Texas Instruments
Catalog
Automotive multichannel overvoltage and undervoltage I²C programmable voltage supervisor and monitor
Key Features
• ASIL-D Functional Safety-CompliantDevelopment target for Functional Safety applicationsDocumentation to aid ISO 26262 system designSystematic capability up to ASIL DHardware capability up to ASIL DAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°CMonitor state-of-the art SOCs±6mV threshold accuracy (–40°C to +125°C)Input voltage range: 2.5V to 5.5VUndervoltage lockout (UVLO): 2.48VLow standby quiescent current: 200µA6 channels with 2 remote sense (TPS389006-Q1)6 channels with 2 remote sense and Reset output (TPS389R06-Q1)8 channels (TPS389008-Q1)Fixed window threshold levels5mV steps from 0.2V to 1.475V20mV steps from 0.8V to 5.5VMiniature solution and minimal component cost3mm x 3mm QFN packageAdjustable glitch immunity via I2CUser adjustable voltage threshold levels via I2CDesigned for safety applicationsActive-low open-drain NIRQ outputActive-low open-drain NRST output (TPS389R0-Q1)Built-in 8-bit ADC for real-time voltage readoutsCyclic Redundancy Checking (CRC)Packet Error Checking (PEC)Sequence and fault loggingSync function for rail taggingConnect with amultichannel sequencerfor sequencing functionalityASIL-D Functional Safety-CompliantDevelopment target for Functional Safety applicationsDocumentation to aid ISO 26262 system designSystematic capability up to ASIL DHardware capability up to ASIL DAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°CMonitor state-of-the art SOCs±6mV threshold accuracy (–40°C to +125°C)Input voltage range: 2.5V to 5.5VUndervoltage lockout (UVLO): 2.48VLow standby quiescent current: 200µA6 channels with 2 remote sense (TPS389006-Q1)6 channels with 2 remote sense and Reset output (TPS389R06-Q1)8 channels (TPS389008-Q1)Fixed window threshold levels5mV steps from 0.2V to 1.475V20mV steps from 0.8V to 5.5VMiniature solution and minimal component cost3mm x 3mm QFN packageAdjustable glitch immunity via I2CUser adjustable voltage threshold levels via I2CDesigned for safety applicationsActive-low open-drain NIRQ outputActive-low open-drain NRST output (TPS389R0-Q1)Built-in 8-bit ADC for real-time voltage readoutsCyclic Redundancy Checking (CRC)Packet Error Checking (PEC)Sequence and fault loggingSync function for rail taggingConnect with amultichannel sequencerfor sequencing functionality
Description
AI
The TPS389006/08-Q1 device is an ASIL-D compliant six/eight-channel window supervisor IC with two remote sense pins (six channel version) available in a 16-pin 3mm x 3mm QFN package. The TPS389R06-Q1 device is a six channel window supervisor IC with 2 remote sense pins and a Reset output. This high accuracy multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances.
Remote sense pins enable a highly accurate voltage measurement on the high current core rail by accounting for voltage drop across PCB traces. I2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. The internal glitch immunity and noise filters eliminate the need for external RC components to reduce false resets resulting from power transients. In addition, 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.
This device offers CRC error checking, sequence logging during turn ON or turn OFF, and a built-in ADC for voltage readouts to provide redundant error checking. In addition, TPS389006 offers a sync feature for tagging the rails as the device powers up. The TPS389006 device also pairs with TI’s power-supply sequencerTPS38700to enable proper power-on sequence in addition to voltage monitoring for SIL-3 level compliance.
The TPS389006/08-Q1 device is an ASIL-D compliant six/eight-channel window supervisor IC with two remote sense pins (six channel version) available in a 16-pin 3mm x 3mm QFN package. The TPS389R06-Q1 device is a six channel window supervisor IC with 2 remote sense pins and a Reset output. This high accuracy multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances.
Remote sense pins enable a highly accurate voltage measurement on the high current core rail by accounting for voltage drop across PCB traces. I2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. The internal glitch immunity and noise filters eliminate the need for external RC components to reduce false resets resulting from power transients. In addition, 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.
This device offers CRC error checking, sequence logging during turn ON or turn OFF, and a built-in ADC for voltage readouts to provide redundant error checking. In addition, TPS389006 offers a sync feature for tagging the rails as the device powers up. The TPS389006 device also pairs with TI’s power-supply sequencerTPS38700to enable proper power-on sequence in addition to voltage monitoring for SIL-3 level compliance.
