TPS3436-Q1 Series

Automotive, nano-quiescent-current precision window watchdog timer

Catalog

Automotive, nano-quiescent-current precision window watchdog timer

Part	Package / Case	Grade	Mounting Type	Reset	Operating Temperature [Max]	Operating Temperature [Min]	Type	Number of Voltages Monitored	Output	Supplier Device Package	Qualification	Reset Timeout
Texas Instruments TPS3436BFACADDFRQ1	SOT-23-8 Thin TSOT-23-8	Automotive	Surface Mount	Active Low	125 °C	-40 °C	Watchdog Circuit	1	Open Drain or Open Collector	TSOT-23-8	AEC-Q100
Texas Instruments TPS3436CCCBGDDFRQ1	SOT-23-8 Thin TSOT-23-8		Surface Mount	Active Low	125 °C	-40 °C	Watchdog Circuit	1	Open Drain or Open Collector	TSOT-23-8		450 ms

Catalog

Automotive, nano-quiescent-current precision 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 VUltra 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 VUltra 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 TPS3436-Q1 is an ultra-low power consumption (250 nA typical) device offering a programmable window watchdog timer. The TPS3436-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. The 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 watchdog fault is cleared. The TPS3436-Q1 provides a performance upgrade alternative toTPS3430-Q1device family. The TPS3436-Q1 is available in a small 8-pin SOT-23 package. The TPS3436-Q1 is an ultra-low power consumption (250 nA typical) device offering a programmable window watchdog timer. The TPS3436-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. The 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 watchdog fault is cleared. The TPS3436-Q1 provides a performance upgrade alternative toTPS3430-Q1device family. The TPS3436-Q1 is available in a small 8-pin SOT-23 package.