TPS3850-Q1 Series

Automotive, window supervisor for OV & UV monitoring with window watchdog timer & programmable delay

Catalog

Automotive, window supervisor for OV & UV monitoring with window watchdog timer & programmable delay

Part	Supplier Device Package	Reset	Output	Number of Voltages Monitored	Reset Timeout	Type	Mounting Type	Voltage - Threshold	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Grade	Qualification
Texas Instruments TPS3850H12DRCR	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	1.2 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad
Texas Instruments TPS3850G25QDRCRQ1	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	2.5 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad	Automotive	AEC-Q100
Texas Instruments TPS3850G30QDRCRQ1	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	3 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad	Automotive	AEC-Q100
Texas Instruments TPS3850G50DRCR	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	5 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad
Texas Instruments TPS3850G50DRCT	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	5 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad
Texas Instruments TPS3850H33DRCT	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	3.3 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad
Texas Instruments TPS3850H18DRCR	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	1.8 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad
Texas Instruments TPS3850G50QDRCRQ1	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	5 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad	Automotive	AEC-Q100
Texas Instruments TPS3850H18QDRCRQ1	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	1.8 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad	Automotive	AEC-Q100
Texas Instruments TPS3850H18DRCT	10-VSON (3x3)	Active Low	Open Drain or Open Collector	1	Adjustable/Selectable	Simple Reset/Power-On Reset	Surface Mount	1.8 V	-40 °C	125 ¯C	10-VFDFN Exposed Pad

Key Features

• AEC-Q100 Qualified with the following results:Device temperature grade 1: –40°C to 125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-capableDocumentation available to aid functional safety system designInput voltage range: VDD= 1.6 V to 6.5 V0.8% Voltage threshold accuracy (Maximum)Low supply current: IDD= 10 µA (typical)User-programmable watchdog timeoutUser-programmable reset delayFactory programmed precision watchdog and reset timersOpen-drain outputsPrecision over- and undervoltage monitoring:Supports common rails from 0.9 V to 5.0 V4% and 7% Fault windows available0.5% HysteresisWatchdog disable featureAvailable in a small 3-mm × 3-mm, 10-Pin VSON packageAEC-Q100 Qualified with the following results:Device temperature grade 1: –40°C to 125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-capableDocumentation available to aid functional safety system designInput voltage range: VDD= 1.6 V to 6.5 V0.8% Voltage threshold accuracy (Maximum)Low supply current: IDD= 10 µA (typical)User-programmable watchdog timeoutUser-programmable reset delayFactory programmed precision watchdog and reset timersOpen-drain outputsPrecision over- and undervoltage monitoring:Supports common rails from 0.9 V to 5.0 V4% and 7% Fault windows available0.5% HysteresisWatchdog disable featureAvailable in a small 3-mm × 3-mm, 10-Pin VSON package

Description

The TPS3850-Q1 combines a precision voltage supervisor with a programmable window watchdog timer. The TPS3850-Q1 window comparator achieves 0.8% accuracy (–40°C to +125°C) for both overvoltage (VIT+(OV)) and undervoltage (VIT–(UV)) thresholds on the SENSE pin. The TPS3850-Q1 also includes accurate hysteresis on both thresholds, making the device ideal for use with tight tolerance systems. The supervisorRESETdelay can be set by factory-programmed default delay settings, or programmed by an external capacitor. The factory-programmedRESETdelay features a 9.5% accuracy, high-precision delay timing. The TPS3850-Q1 includes a programmable window watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The window watchdog timeouts can be set by factory-programmed default delay settings, or programmed by an external capacitor. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process. The TPS3850-Q1 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package. The TPS3850-Q1 features wettable flanks for easy optical inspection. The TPS3850-Q1 combines a precision voltage supervisor with a programmable window watchdog timer. The TPS3850-Q1 window comparator achieves 0.8% accuracy (–40°C to +125°C) for both overvoltage (VIT+(OV)) and undervoltage (VIT–(UV)) thresholds on the SENSE pin. The TPS3850-Q1 also includes accurate hysteresis on both thresholds, making the device ideal for use with tight tolerance systems. The supervisorRESETdelay can be set by factory-programmed default delay settings, or programmed by an external capacitor. The factory-programmedRESETdelay features a 9.5% accuracy, high-precision delay timing. The TPS3850-Q1 includes a programmable window watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The window watchdog timeouts can be set by factory-programmed default delay settings, or programmed by an external capacitor. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process. The TPS3850-Q1 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package. The TPS3850-Q1 features wettable flanks for easy optical inspection.