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Automotive Catalog Low Quiescent Current Programmable-Delay Supervisory Circuit


Package | PIN: SOT-23 (DBV) | 6
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $1.90
10-24 $1.70
25-99 $1.58
100-249 $1.38
250-499 $1.27
500-749 $1.07
750-999 $0.88
1000+ $0.80


  • Qualified for Automotive Applications
  • Power-On Reset Generator With Adjustable Delay Time: 1.25 ms to 10 s
  • Very Low Quiescent Current: 2.4 µA Typical
  • High Threshold Accuracy: 0.5% Typical
  • Fixed Threshold Voltages for Standard Voltage Rails From 1.2 V to 5 V and Adjustable Voltage Down to 0.4 V Are Available
  • Manual Reset (MR) Input
  • Open-Drain RESET Output
  • Temperature Range: –40°C to +125°C
  • Small SOT-23 Package and WSON Package (TPS3808G01QDRVRQ1 only)

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Texas Instruments  TPS3808G33QDBVRQ1

The TPS3808Gxx-Q1 microprocessor supervisory circuits monitor system voltages from 0.4 Vto 5 V, asserting an open-drain RESET signal when the SENSE voltage dropsbelow a preset threshold or when the manual reset (MR) pin drops to a logiclow. The RESET output remains low for the user-adjustable delay time afterthe SENSE voltage and MR return above their thresholds.

The TPS3808Gxx-Q1 device uses a precision reference to achieve 0.5% threshold accuracyfor VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnectingthe CT pin, 300 ms by connecting the CT pin toVDD using a resistor, or can be user-adjusted from 1.25 ms to 10 s byconnecting the CT pin to an external capacitor. The TPS3808Gxx-Q1 has a verylow typical quiescent current of 2.4 µA, so it is well suited for battery-powered applications. Thedevice is available in a small SOT-23 package (one option available in WSON) and is fully specifiedover a temperature range of –40°C to +125°C (TJ).

For more information about TI’s voltage supervisor portfolio, visit theSupervisor andReset IC Overview Page page.