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TPS3851/TPS3851-Q1 Precision Voltage Supervisors

Texas Instruments TPS3851/TPS3851-Q1 Precision Voltage Supervisors combine 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. The TPS3851 also includes accurate hysteresis on the undervoltage threshold, making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy and high-precision delay timing. The TPS3851/TPS3851-Q1 includes a programmable watchdog timer for various applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. Watchdog timeouts can be programmed either by an external capacitor or factory-programmed default delay settings. The TPS3851-Q1 devices are AEC-Q100 qualified for automotive applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Type	Mounting Style	Package/Case	Threshold Voltage	Number of Inputs Monitored	Output Type	Manual Reset	Watchdog Timers	Battery Backup Switching	Reset Delay Time	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Accuracy	Series	Qualification	Packaging
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G18EDRBT TPS3851G18EDRBR Texas Instruments 1: 1,23 € 2 980Expected 11/01/2027	Mfr. Part No. TPS3851G18EDRBR Mouser Part No 595-TPS3851G18EDRBR	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G18EDRBT Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	2 980Expected 11/01/2027	Cut Tape 1,23 € 0,903 € 0,814 € 0,736 € View Reel 0,627 € 0,678 € 0,651 € 0,642 € 0,627 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	1.8 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	6.5 V	- 40 C	+ 125 C	0.8 %	TPS3851		Reel, Cut Tape, MouseReel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851H33EQDRBRQ1 Texas Instruments 1: 2,55 € 5 953Expected 18/12/2026	Mfr. Part No. TPS3851H33EQDRBRQ1 Mouser Part No 595-S3851H33EQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	5 953Expected 18/12/2026	Cut Tape 2,55 € 1,89 € 1,73 € 1,56 € Reel 1,32 € View 1,47 € 1,44 € 1,36 € 1,30 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	3.3 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	6.5 V	- 40 C	+ 125 C	0.8 %	TPS3851	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H33EDRBT TPS3851H33EDRBR Texas Instruments 1: 1,39 € 2 693Expected 24/12/2026	Mfr. Part No. TPS3851H33EDRBR Mouser Part No 595-TPS3851H33EDRBR	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H33EDRBT Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	2 693Expected 24/12/2026	Cut Tape 1,39 € 1,02 € 0,929 € 0,823 € View Reel 0,722 € 0,774 € 0,745 € 0,739 € 0,722 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	3.3 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	6.5 V	- 40 C	+ 125 C	0.8 %	TPS3851		Reel, Cut Tape, MouseReel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H33EDRBR TPS3851H33EDRBT Texas Instruments 1: 2,28 € 742Expected 29/03/2027	Mfr. Part No. TPS3851H33EDRBT Mouser Part No 595-TPS3851H33EDRBT	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H33EDRBR Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	742Expected 29/03/2027	Cut Tape 2,28 € 1,69 € 1,55 € 1,38 € Reel 1,23 € 1,17 € MouseReel Available	Min.: 1 Mult.: 1 : 250	Voltage Supervisory	SMD/SMT	SON-8	3.3 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	6.5 V	- 40 C	+ 125 C	0.8 %	TPS3851		Reel, Cut Tape, MouseReel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851G18SQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G18SQDRBRQ1 Mouser Part No 595-S3851G18SQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	1.8 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851G25EQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G25EQDRBRQ1 Mouser Part No 595-S3851G25EQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	2.5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851G25SQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G25SQDRBRQ1 Mouser Part No 595-S3851G25SQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	2.5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851G30EQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G30EQDRBRQ1 Mouser Part No 595-S3851G30EQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	3 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851G33EQDRBRQ1 Texas Instruments 1: 2,55 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G33EQDRBRQ1 Mouser Part No 595-S3851G33EQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape 2,55 € 1,89 € 1,73 € 1,56 € Reel 1,32 € View 1,47 € 1,44 € 1,36 € 1,30 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	3.3 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851G50EQDRBRQ1 Texas Instruments 1: 2,55 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G50EQDRBRQ1 Mouser Part No 595-S3851G50EQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape 2,55 € 1,90 € 1,74 € 1,57 € 1,48 € Reel 1,25 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851G50SQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G50SQDRBRQ1 Mouser Part No 595-S3851G50SQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851H18EQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851H18EQDRBRQ1 Mouser Part No 595-S3851H18EQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	1.8 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851H25EQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851H25EQDRBRQ1 Mouser Part No 595-S3851H25EQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	2.5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851H25SQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851H25SQDRBRQ1 Mouser Part No 595-S3851H25SQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	2.5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits Automotive high-acc uracy voltage superv TPS3851H30SQDRBRQ1 Texas Instruments 3 000: 1,32 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851H30SQDRBRQ1 Mouser Part No 595-S3851H30SQDRBRQ1	Texas Instruments	Supervisory Circuits Automotive high-acc uracy voltage superv Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 1,32 € 1,30 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	3 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851	AEC-Q100	Reel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G25EDRBR TPS3851G25EDRBT Texas Instruments 1: 2,44 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G25EDRBT Mouser Part No 595-TPS3851G25EDRBT	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G25EDRBR Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape 2,44 € 1,81 € 1,66 € 1,49 € Reel 1,41 € View 1,38 € 1,31 € 1,27 € 1,25 € MouseReel Available	Min.: 1 Mult.: 1 : 250	Voltage Supervisory	SMD/SMT	SON-8	2.5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851		Reel, Cut Tape, MouseReel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G50EDRBT TPS3851G50EDRBR Texas Instruments 3 000: 0,691 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G50EDRBR Mouser Part No 595-TPS3851G50EDRBR	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G50EDRBT Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 0,691 € 0,676 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog			5 V	- 40 C	+ 125 C	1 %	TPS3851		Reel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G50SDRBT TPS3851G50SDRBR Texas Instruments 3 000: 0,691 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851G50SDRBR Mouser Part No 595-TPS3851G50SDRBR	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G50SDRBT Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel 0,691 € 0,676 €	Min.: 3 000 Mult.: 3 000 : 3 000	Voltage Supervisory	SMD/SMT	SON-8	5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog			5 V	- 40 C	+ 125 C	1 %	TPS3851		Reel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H18EDRBR TPS3851H18EDRBT Texas Instruments 1: 2,44 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851H18EDRBT Mouser Part No 595-TPS3851H18EDRBT	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H18EDRBR Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape 2,44 € 1,81 € 1,66 € 1,49 € Reel 1,41 € View 1,38 € 1,31 € 1,27 € 1,25 € MouseReel Available	Min.: 1 Mult.: 1 : 250	Voltage Supervisory	SMD/SMT	SON-8	1.8 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851		Reel, Cut Tape, MouseReel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H25EDRBR TPS3851H25EDRBT Texas Instruments 1: 2,44 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851H25EDRBT Mouser Part No 595-TPS3851H25EDRBT	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H25EDRBR Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape 2,44 € 1,81 € 1,66 € 1,49 € Reel 1,41 € View 1,38 € 1,31 € 1,27 € 1,25 € MouseReel Available	Min.: 1 Mult.: 1 : 250	Voltage Supervisory	SMD/SMT	SON-8	2.5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851		Reel, Cut Tape, MouseReel
Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H50EDRBR TPS3851H50EDRBT Texas Instruments 1: 2,44 € Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TPS3851H50EDRBT Mouser Part No 595-TPS3851H50EDRBT	Texas Instruments	Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H50EDRBR Learn More about Texas Instruments ti tps3851 supervisor	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape 2,44 € 1,81 € 1,66 € 1,49 € Reel 1,41 € View 1,38 € 1,31 € 1,27 € 1,25 € MouseReel Available	Min.: 1 Mult.: 1 : 250	Voltage Supervisory	SMD/SMT	SON-8	5 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5 V	- 40 C	+ 125 C	1 %	TPS3851		Reel, Cut Tape, MouseReel

TPS3851/TPS3851-Q1 Precision Voltage Supervisors

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