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TPS3808G18DRVR +BOM

Low-quiescent current supervisor with programmable delay & manual reset

Manufacturer:

TI
Mfr.Part #:

TPS3808G18DRVR
Datasheet:

TPS3808G18DRVR Datasheet (PDF)
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
EDA/CAD Models:

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TPS3808G18DRVR General Description

The TPS3808 family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5 V, 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 TPS3808 device uses a precision reference to achieve 0.5% threshold accuracy for V_IT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the C_T pin, 300 ms by connecting the C_T pin to V_DD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the C_T pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × 2-mm WSON packages, and is fully specified over a temperature range of –40°C to 125°C (T_J).

Key Features

Fast startup and recovery
Ultra-low power consumption
Robust threshold accuracy

Specifications

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