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Low-quiescent current supervisor with programmable delay & manual reset

TPS3808G01DBVT General Description

The TPS3808G01DBVT is a member of the TPS3808 family of microprocessor supervisory circuits, specifically designed to monitor system voltages ranging from 0.4 V to 5 V. It is equipped with an open-drain RESET signal that is triggered when the SENSE voltage drops below a predetermined threshold or when the manual reset (MR) pin falls to a logic low. Following this, the RESET output remains low for a user-adjustable delay time after the SENSE voltage and manual reset (MR) return above their respective thresholds. With a precision reference, the TPS3808G01DBVT achieves a threshold accuracy of 0.5% for VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be adjusted between 1.25 ms and 10 s by connecting the CT pin to an external capacitor. Additionally, the TPS3808G01DBVT has a remarkably low typical quiescent current of 2.4 µA, making it particularly suitable for battery-powered applications. Its availability in the SOT-23 and 2-mm × 2-mm WSON packages and full specification over a temperature range of –40°C to 125°C (TJ) further enhance its versatility and reliability

Key Features

  • 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 0.9 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 and 2-mm × 2-mm WSON packages


DSP or Microcontroller Applications Notebook and Desktop Computers PDAs and Hand-Held Products Portable and Battery-Powered Products FPGA and ASIC Applications


Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.405, 0.84, 1.16, 1.4, 1.67, 1.77, 2.33, 2.79, 3.07, 4.65
Features Manual reset capable Reset threshold accuracy (%) 2
Iq (typ) (mA) 0.0024 Output driver type/reset output Active-low, Open-drain
Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 6.5
Rating Catalog Watchdog timer WDI (s) None
Operating temperature range (°C) -40 to 125

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In Stock: 6,585

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $0.925 $0.92
10+ $0.799 $7.99
30+ $0.734 $22.02
250+ $0.671 $167.75
500+ $0.633 $316.50
1000+ $0.614 $614.00

The prices below are for reference only.