TPS3808G50QDBVRQ1 Electronic Components

The TPS3808G50QDBVRQ1 Electronic Components devices are low-current supervisory circuits used to monitor system voltages ranging from 0.4 V to 5 V. The devices assert an active low, open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin is asserted to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and MR return above their thresholds. The devices are also designed to be immune to short negative transients on the SENSE pin. 

The reset delay time can be configured by using the CT pin. The delay can be configured to 20 ms by leaving the CT pin floating, it can be configured to 300 ms by connecting the CT pin to VDD using a resistor, or can be configured from 1.25 ms to 10 s by connecting the CT pin to an external capacitor.

The TPS3808Gxx-Q1 device uses a precision reference to achieve 0.5% threshold accuracy 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 useradjusted from 1.25 ms to 10 s by connecting the CT pin to an external capacitor. 

The TPS3808Gxx-Q1 has a very low typical quiescent current of 2.4 μA, so it is well suited for battery-powered applications. The device is available in a small SOT-23 package (one option available in WSON) and is fully specified over a temperature range of –40°C to +125°C (TJ ).

Product Features

Product Applications

DSP or Microcontroller Applications

FPGA and ASIC Applications

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