Skip to main content
Texas Instruments TLV803SDBZT — Discrete Semiconductors
Texas Instruments

TI TLV803SDBZT Voltage Supervisor, 2.93V Threshold, SOT-23-3

MPNTLV803SDBZT
End of Life

TI TLV803SDBZT, Simple Reset/Power-On Reset, Active Low, Open Drain or Open Collector, 1 Channel, 2.93V Threshold, 120ms Minimum Reset Timeout, SOT-23-3, -40°C to 125°C.

$1.33Ref. price · indicative, final on quote
TLV803SDBZT datasheet
PackagingTO-236-3, SC-59, SOT-23-3
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

TLV803SDBZT Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
Mounting typeSurface Mount
Voltage - threshold2.93V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout120ms Minimum
CaseTO-236-3, SC-59, SOT-23-3

Product details

120ms timeout — enough for most power-up sequences

The 120ms minimum reset timeout gives the supply rail time to stabilize and the oscillator time to start before the processor begins executing code.

Temperature range and environment

Rated for -40°C to 125°C ambient, this supervisor handles industrial motor drives, outdoor telecom enclosures, and under-hood automotive environments where the PCB sees wide temperature swings. The SOT-23-3 package keeps the footprint small — three pins, no external components needed beyond a pull-up resistor on the open-drain output.

Sourcing and lifecycle

TI lists the TLV803SDBZT as an active product with ROHS3 compliance.

Frequently asked questions

What is the reset timeout duration for TLV803SDBZT?

The TLV803SDBZT has a minimum reset timeout of 120ms, which holds the reset output low for at least that duration after the supply voltage rises above the 2.93V threshold.

Is TLV803SDBZT RoHS compliant?

Yes, the TLV803SDBZT is ROHS3 compliant, meeting current EU and global environmental restrictions on hazardous substances.

What is the equivalent or cross reference for TLV803SDBZT?

The closest functional equivalent is the TLV803EA29VDBZR, which shares the 2.93V threshold, active-low open-drain output, and SOT-23-3 package, but has a 130ms minimum reset timeout instead of 120ms. For a faster timeout, the TLV803ED29DBZR offers 33ms minimum. Verify timing compatibility in your design before substituting.

Can TLV803SDBZT replace the MAX809?

The TLV803SDBZT is functionally similar to the MAX809 — both are simple reset ICs with active-low open-drain output. The TLV803SDBZT monitors a 2.93V threshold with a 120ms timeout. Check the MAX809 variant you are replacing: the MAX809 has multiple threshold options (2.63V, 2.93V, 3.08V, etc.) and a 140ms typical timeout. If the threshold and timing match your design, the TLV803SDBZT is a drop-in candidate in the same SOT-23-3 footprint.

Can TLV803SDBZT be used with 3.3V microcontrollers?

Yes. The 2.93V threshold is specifically chosen for monitoring 3.3V supply rails. It asserts reset when the rail drops below 2.93V, which is above the typical minimum operating voltage of 3.3V MCUs (usually 2.7V to 3.0V), ensuring the processor resets before it enters an undefined state.