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Voltage monitor with watchdog timer

Same as: TPS3828-33DBVTG4   This part number is identical to the part number listed above. You can only order quantities of the part number listed above.

Inventory: 35,554

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
SOT-23 (DBV) | 5 250 | SMALL T&R
-40 to 85
Package | Pins SOT-23 (DBV) | 5
Package qty | Carrier 250 | SMALL T&R
Operating temperature range (°C) -40 to 85
View TI packaging information

Features for the TPS3828

  • Power-On reset generator with fixed delay time of 200 ms (TPS3823/4/5/8) or 25 ms (TPS3820)
  • Manual reset input (TPS3820/3/5/8)
  • Reset output available in active-low (TPS3820/3/4/5), active-high (TPS3824/5), and open drain (TPS3828)
  • Supply voltage supervision range:
    2.5 V, 3 V, 3.3 V, 5 V
  • Watchdog timer (TPS3820/3/4/8)
  • Supply current of 15 µA (Typical)
  • 5-Pin SOT-23 package
  • Temperature range: −40°C to 85°C (−40°C to 125°C for TPS3823A-33)

All trademarks are the property of their respective owners.

Description for the TPS3828

The TPS382x family of supervisors provide circuitinitialization and timing supervision, primarily for DSP and processor-based systems. During poweron, RESET asserts when the supply voltage VDD becomesgreater than 1.1 V. Thereafter, the supply voltage supervisor monitors VDDand keeps RESET active low as long as VDD remainsless than the threshold voltage, VIT−. An internal timer delays the returnof the output to the inactive state (high) to ensure proper system reset. The delay time,td, starts after VDD has risen above the thresholdvoltage (VIT− + VHYS). When the supply voltage dropsbelow the threshold voltage VIT−, the output becomes active (low) again. Noexternal components are required. All the devices of this family have a fixed-sense thresholdvoltage, VIT–, set by an internal voltage divider. The TPS382x family alsooffers watchdog time out options of 200 ms (TPS3820) and 1.6 s (TPS3823/4/8).


Qty Price (USD)
1-99 0.903
100-249 0.746
250-999 0.536
1,000+ 0.403

Additional package qty | carrier options

Package qty | Carrier 3,000 | LARGE T&R
Inventory 77,773
Qty | Price (USD) 1ku | 0.35 1-99 0.865 100-249 0.665 250-999 0.49 1,000+ 0.35
Custom reel may be available