TPS3435-Q1 Series

Automotive, nano-quiescent-current precision timeout watchdog timer

Catalog

Automotive, nano-quiescent-current precision timeout watchdog timer

Part	Output	Reset	Supplier Device Package	Number of Voltages Monitored	Qualification	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Type	Grade	Reset Timeout
Texas Instruments TPS3435CAKAGDDFRQ1	Open Drain or Open Collector	Active Low	TSOT-23-8	1	AEC-Q100	Surface Mount	-40 °C	125 °C	SOT-23-8 Thin TSOT-23-8	Watchdog Circuit	Automotive
Texas Instruments TPS3435AFACADDFRQ1	Open Drain or Open Collector	Active Low	TSOT-23-8	1	AEC-Q100	Surface Mount	-40 °C	125 °C	SOT-23-8 Thin TSOT-23-8	Watchdog Circuit	Automotive	9 s

Catalog

Automotive, nano-quiescent-current precision timeout 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: 1ms to 100sFactory programmed or user-programmable reset delay±10% Accurate timer (maximum)Factory programmed option: 2ms to 10sInput voltage range: VDD = 1.04V to 6.0VUltra low supply current: IDD = 250nA (typical)Open-drain, push-pull; active-low outputsVarious programmability options:Watchdog enable-disableWatchdog startup delay: no delay to 10sOn the fly timer extension: 1X to 256XLatched 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: 1ms to 100sFactory programmed or user-programmable reset delay±10% Accurate timer (maximum)Factory programmed option: 2ms to 10sInput voltage range: VDD = 1.04V to 6.0VUltra low supply current: IDD = 250nA (typical)Open-drain, push-pull; active-low outputsVarious programmability options:Watchdog enable-disableWatchdog startup delay: no delay to 10sOn the fly timer extension: 1X to 256XLatched output optionMR functionality support

Description

The TPS3435-Q1 is an ultra-low power consumption (250nA typical) device offering a programmable timeout watchdog timer. The TPS3435-Q1 offers a high accuracy timeout watchdog timer with a host of features for a wide variety of applications. The timeout watchdog timer can be factory programmed or user programmed using an external capacitor. The timer value 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 TPS3435-Q1 provides a performance upgrade alternative toTPS3431-Q1device family. The TPS3435-Q1 is available in a small 8-pin SOT-23 package. The TPS3435-Q1 is an ultra-low power consumption (250nA typical) device offering a programmable timeout watchdog timer. The TPS3435-Q1 offers a high accuracy timeout watchdog timer with a host of features for a wide variety of applications. The timeout watchdog timer can be factory programmed or user programmed using an external capacitor. The timer value 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 TPS3435-Q1 provides a performance upgrade alternative toTPS3431-Q1device family. The TPS3435-Q1 is available in a small 8-pin SOT-23 package.