Product
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TPS3808E-Q1
  • TPS3808E-Q1
  • TPS3808E-Q1
  • TPS3808E-Q1

TPS3808E-Q1

ACTIVE

Automotive, 600nA ultra-low quiescent current supervisor with programmable delay and manual reset

Texas Instruments TPS3808E-Q1 Product Info

1 April 2026 2

Parameters

Rating

Automotive

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

0.84, 1.12, 1.16, 1.4, 1.67, 1.77, 2.33, 2.79, 3.08, 4.65, adjustable

Features

Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

1

Iq (typ) (mA)

0.0006

Output driver type/reset output

Active-low, Open-drain

Watchdog timer WDI (s)

None

Supply voltage (min) (V)

1.7

Supply voltage (max) (V)

6.5

Operating temperature range (°C)

-40 to 125

Package

SOT-23 (DBV)-6-8.12 mm² 2.9 x 2.8

Features

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
  • Undervoltage monitoring for power rails
    • Reliable monitoring with high threshold accuracy (1% typical)
    • Fixed voltage threshold options from 0.9V to 5V
    • Adjustable voltage option available (0.405V)
    • Separate Sense pin for monitoring and VDD pin for power
  • Miniature solution with ultra-low power consumption
    • 0.6µA typical quiescent current
    • Compact 6-pin SOT23 package (2.9mm x 1.6mm)
  • Highly configurable reset time delay to prevent unsafe power on
    • Adjustable from 1.25ms to 150s
  • Separate Manual Reset Input (MR) to assert RESET output on demand
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
  • Undervoltage monitoring for power rails
    • Reliable monitoring with high threshold accuracy (1% typical)
    • Fixed voltage threshold options from 0.9V to 5V
    • Adjustable voltage option available (0.405V)
    • Separate Sense pin for monitoring and VDD pin for power
  • Miniature solution with ultra-low power consumption
    • 0.6µA typical quiescent current
    • Compact 6-pin SOT23 package (2.9mm x 1.6mm)
  • Highly configurable reset time delay to prevent unsafe power on
    • Adjustable from 1.25ms to 150s
  • Separate Manual Reset Input (MR) to assert RESET output on demand

Description

The TPS3808E-Q1 family of microprocessor supervisory circuits monitors system voltages from 0.4V to 5V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.

The TPS3808E-Q1 device uses a precision reference to achieve 0.5% threshold accuracy. The reset delay time can be set to 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25ms and 150s by connecting the CT pin to an external capacitor. The TPS3808E device has a very low typical quiescent current of 0.6µA, and is designed for battery-powered applications. The TPS3808E-Q1 is available in the SOT-23-6 , and is fully specified over a temperature range of –40°C to 125°C (TJ).

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