TPS3850H12DRCR

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Texas Instruments

PRECISION WINDOW SUPERVISOR FOR OV & UV MONITORING WITH WINDOW WATCHDOG TIMER & PROGRAMMABLE DELAY

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TPS3850H12DRCR

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Texas Instruments

PRECISION WINDOW SUPERVISOR FOR OV & UV MONITORING WITH WINDOW WATCHDOG TIMER & PROGRAMMABLE DELAY

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Description Specifications Series Pricing CAD Documents

Description

General part information

TPS3850 Series

The TPS3850 combines a precision voltage supervisor with a programmable window watchdog timer. The TPS3850 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 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 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 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS3850H12DRCR

Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output	Open Drain, Open Collector
Package / Case	10-VFDFN Exposed Pad
Package Length	3 mm
Package Name	10-VSON
Package Width	3 mm
Reset	Active Low
Reset Timeout	Selectable, Adjustable
Type	Simple Reset/Power-On Reset
Voltage - Threshold	1.2 V

TPS3850 Series

Part	Package Width	Package Name	Package Length	Operating Temperature (Max)	Operating Temperature (Min)	Reset	Mounting Type	Package / Case	Voltage - Threshold	Type	Reset Timeout	Output	Number of Voltages Monitored	Qualification	Grade
Texas Instruments TPS3850G33DRCR	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	3.3 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1
Texas Instruments TPS3850H12DRCR	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	1.2 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1
Texas Instruments TPS3850G25QDRCRQ1	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	2.5 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1	AEC-Q100	Automotive
Texas Instruments TPS3850G30QDRCRQ1	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	3 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1	AEC-Q100	Automotive
Texas Instruments TPS3850H33QDRCRQ1	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	3.3 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1	AEC-Q100	Automotive
Texas Instruments TPS3850G50DRCR	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	5 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1
Texas Instruments TPS3850G50DRCT	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	5 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1
Texas Instruments TPS3850H33DRCT	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	3.3 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1
Texas Instruments TPS3850H18DRCR	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	1.8 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1
Texas Instruments TPS3850G50QDRCRQ1	3 mm	10-VSON	3 mm	125 °C	-40 °C	Active Low	Surface Mount	10-VFDFN Exposed Pad	5 V	Simple Reset/Power-On Reset	Adjustable Selectable	Open Collector Open Drain	1	AEC-Q100	Automotive

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Exploring watchdog timer applications

Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A)

Comparing Voltage and Processor Monitoring Solutions

How Comparator Topology Influences Propagation Delay

TPS3850 Precision Voltage Supervisor with Programmable Window Watchdog Timer datasheet (Rev. B)