TPS3851 Series

High-accuracy voltage supervisor with Integrated watchdog timer

Catalog(28 parts)

Part	Mounting Type	Type	Reset Timeout▲▼	Output	Number of Voltages Monitored▲▼	Voltage - Threshold▲▼	Grade	Supplier Device Package	Qualification	Operating Temperature▲▼	Operating Temperature▲▼	Reset	Package / Case	Function	Supplied Contents	Utilized IC / Part
Texas Instruments TPS3851H18SQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	1.7999999523162842 V	Automotive	8-SON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H33EDRBR Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3.299999952316284 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G25EDRBR Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	2.5 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G18SDRBR Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	1.7999999523162842 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H18EDRBT Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	1.7999999523162842 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G33SQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-VSON (3x3)	Surface Mount, Wettable Flank	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3.299999952316284 V	Automotive	8-VSON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851EVM-780 TPS3851 Power Supply Supervisor/Tracker/Sequencer Power Management Evaluation Board		Power Management												Power Supply Supervisor/Tracker/Sequencer	Board(s)	TPS3851
Texas Instruments TPS3851G25SQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-VSON (3x3)	Surface Mount, Wettable Flank	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	2.5 V	Automotive	8-VSON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G18EDRBT Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	1.7999999523162842 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H30EDRBT Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G50EDRBT Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	5 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G30EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-VSON (3x3)	Surface Mount, Wettable Flank	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3 V	Automotive	8-VSON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H25EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	2.5 V	Automotive	8-SON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G33EDRBR Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3.299999952316284 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H50EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	5 V	Automotive	8-SON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H33EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3.299999952316284 V	Automotive	8-SON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G30SQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-VSON (3x3)	Surface Mount, Wettable Flank	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3 V	Automotive	8-VSON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G50EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-VSON (3x3)	Surface Mount, Wettable Flank	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	5 V	Automotive	8-VSON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H25EDRBR Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	2.5 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H25SQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	2.5 V	Automotive	8-SON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G50EDRBR Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	5 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H18EDRBR Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	1.7999999523162842 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G25EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-VSON (3x3)	Surface Mount, Wettable Flank	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	2.5 V	Automotive	8-VSON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G18EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-VSON (3x3)	Surface Mount, Wettable Flank	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	1.7999999523162842 V	Automotive	8-VSON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H25EDRBT Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	2.5 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851G50SDRBT Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	5 V		8-SON (3x3)		125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H30EQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3 V	Automotive	8-SON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad
Texas Instruments TPS3851H33SQDRBRQ1 Supervisor Open Drain or Open Collector 1 Channel 8-SON (3x3)	Surface Mount	Simple Reset/Power-On Reset	0.17000000178813934 s	Open Drain or Open Collector	1 ul	3.299999952316284 V	Automotive	8-SON (3x3)	AEC-Q100	125 °C	-40 °C	Active Low	8-VDFN Exposed Pad

Key Features

• Input voltage range: VDD= 1.6 V to 6.5 V0.8% Voltage threshold accuracyLow quiescent current: IDD= 10 µA (typical)User-programmable watchdog timeoutOpen-drain outputsPrecision undervoltage monitoring:Supports common rails from 1.8 V to 5.0 V4% and 7% Undervoltage thresholds available0.5% HysteresisWatchdog disable featureFactory-programmed precision watchdog and reset timersManual reset input (MR)Available in a small 3-mm × 3-mm, 8-Pin VSON packageJunction operating temperature range: –40°C to +125°CInput voltage range: VDD= 1.6 V to 6.5 V0.8% Voltage threshold accuracyLow quiescent current: IDD= 10 µA (typical)User-programmable watchdog timeoutOpen-drain outputsPrecision undervoltage monitoring:Supports common rails from 1.8 V to 5.0 V4% and 7% Undervoltage thresholds available0.5% HysteresisWatchdog disable featureFactory-programmed precision watchdog and reset timersManual reset input (MR)Available in a small 3-mm × 3-mm, 8-Pin VSON packageJunction operating temperature range: –40°C to +125°C

Description

The TPS3851 combines a precision voltage supervisor with a programmable watchdog timer. The TPS3851 comparator achieves a 0.8% accuracy (–40°C to +125°C) for the undervoltage (VITN) threshold on the VDD pin. The TPS3851 also includes accurate hysteresis on the undervoltage threshold making the device ideal for use with tight tolerance systems. The supervisorRESETdelay features a 15% accuracy, high-precision delay timing. The TPS3851 includes a programmable 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 watchdog timeouts can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process. TPS3851 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3851 combines a precision voltage supervisor with a programmable watchdog timer. The TPS3851 comparator achieves a 0.8% accuracy (–40°C to +125°C) for the undervoltage (VITN) threshold on the VDD pin. The TPS3851 also includes accurate hysteresis on the undervoltage threshold making the device ideal for use with tight tolerance systems. The supervisorRESETdelay features a 15% accuracy, high-precision delay timing. The TPS3851 includes a programmable 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 watchdog timeouts can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process. TPS3851 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package.