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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Qty. RoHS ECAD Model 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
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Packaging
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H30EDRBR
Datasheet
115In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Voltage Supervisory SMD/SMT SON-8 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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H33EDRBR
Datasheet
9In Stock
250Expected 15/09/2026
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
5,953Expected 18/12/2026
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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H33EDRBT
Datasheet
2,943Expected 08/10/2026
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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 5 V - 40 C + 125 C 1 % TPS3851 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 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, Cut Tape, MouseReel
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits Automotive high-acc uracy voltage superv
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G25EDRBR
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G50EDRBT
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851G50SDRBT
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H18EDRBR
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H25EDRBR
Datasheet
Non-Stocked Lead-Time 16 Weeks
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
Texas Instruments Supervisory Circuits High-accuracy voltag e supervisor with I A 595-TPS3851H50EDRBR
Datasheet
Non-Stocked Lead-Time 16 Weeks
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