TPS36-Q1 Series

Automotive nano-quiescent-current precision supervisor with window watchdog timer

Catalog

Automotive nano-quiescent-current precision supervisor with window watchdog timer

Part	Voltage - Threshold	Package / Case	Supplier Device Package	Mounting Type	Reset Timeout	Operating Temperature [Min]	Operating Temperature [Max]	Grade	Output	Qualification	Reset	Number of Voltages Monitored	Type
Texas Instruments TPS36BA38ACADDFRQ1	2.9 V	SOT-23-8 Thin TSOT-23-8	TSOT-23-8	Surface Mount	Adjustable/Selectable	-40 °C	125 °C	Automotive	Open Drain or Open Collector	AEC-Q100	Active Low	1	Watchdog Circuit

Catalog

Automotive nano-quiescent-current precision supervisor with window watchdog timer

Key Features

• AEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to 125°C ambient operating temperature rangeFactory programmed or user-programmable watchdog timeout±10% Accurate timer (maximum)Factory programmed close window: 1msec to 100 secFactory programmed or user-programmable reset delay±10% Accurate timer (maximum)Factory programmed option: 2 msec to 10 secInput voltage range: V DD = 1.04 V to 6.0 VFixed threshold voltage (V IT-): 1.05 V to 5.4 VThreshold voltage available in 50 mV steps1.2% Voltage threshold accuracy (maximum)Built-in hysteresis (V HYS): 5% (typical)Ultra low supply current: I DD = 250 nA (typical)Open-drain, push-pull; active-low outputsVarious programmability options:Watchdog enable-disableWatchdog startup delay: no delay to 10 secOpen window to close window ratio option: 1X to 511XLatched output optionMR functionality supportAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to 125°C ambient operating temperature rangeFactory programmed or user-programmable watchdog timeout±10% Accurate timer (maximum)Factory programmed close window: 1msec to 100 secFactory programmed or user-programmable reset delay±10% Accurate timer (maximum)Factory programmed option: 2 msec to 10 secInput voltage range: V DD = 1.04 V to 6.0 VFixed threshold voltage (V IT-): 1.05 V to 5.4 VThreshold voltage available in 50 mV steps1.2% Voltage threshold accuracy (maximum)Built-in hysteresis (V HYS): 5% (typical)Ultra low supply current: I DD = 250 nA (typical)Open-drain, push-pull; active-low outputsVarious programmability options:Watchdog enable-disableWatchdog startup delay: no delay to 10 secOpen window to close window ratio option: 1X to 511XLatched output optionMR functionality support

Description

The TPS36-Q1 is an ultra-low power consumption (250 nA typical) device offering a precision voltage supervisor with a programmable window watchdog timer. The TPS36-Q1 supports wide threshold levels for undervoltage supervision with 1.2% accuracy across the specified temperature range. The TPS36-Q1 offers a high accuracy window watchdog timer with host of features for a wide variety of applications. The close window timer can be factory programmed or user programmed using an external capacitor. The open window to close window ratio can be changed on-the-fly using a combination of logic pins. The watchdog also offers unique features such as enable-disable, start-up delay, independent WDO pin option. The RESET or WDO delay can be set by factory-programmed default delay settings or programmed by an external capacitor. The device also offers a latched output operation where the output is latched until the supervisor or watchdog fault is cleared. The TPS36-Q1 provides a performance upgrade alternative toTPS3852-Q1device family. The TPS36-Q1 is available in a small 8-pin SOT-23 package. The TPS36-Q1 is an ultra-low power consumption (250 nA typical) device offering a precision voltage supervisor with a programmable window watchdog timer. The TPS36-Q1 supports wide threshold levels for undervoltage supervision with 1.2% accuracy across the specified temperature range. The TPS36-Q1 offers a high accuracy window watchdog timer with host of features for a wide variety of applications. The close window timer can be factory programmed or user programmed using an external capacitor. The open window to close window ratio can be changed on-the-fly using a combination of logic pins. The watchdog also offers unique features such as enable-disable, start-up delay, independent WDO pin option. The RESET or WDO delay can be set by factory-programmed default delay settings or programmed by an external capacitor. The device also offers a latched output operation where the output is latched until the supervisor or watchdog fault is cleared. The TPS36-Q1 provides a performance upgrade alternative toTPS3852-Q1device family. The TPS36-Q1 is available in a small 8-pin SOT-23 package.