1 Features

1• Ultralow Supply Current: 150 nA (Typical)

• Operating Supply Voltage: 0.9 V to 6.5 V

• Valid Reset for VDD > 0.6 V

• Push-Pull RESET Output

• Factory-Trimmed Reset Threshold Voltages

• Temperature Range: –40°C to 85°C

• Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23

2 Applications

• Portable and Battery-Powered Equipment

• Metering

• Industrial Equipment

• Cell Phones

• Glucose Monitors

• Tablets factory•

Wearables

3 Description

The TPS3831 and TPS3839 devices (both referred to

as TPS383x) are ultralow current (150 nA, typical), voltage supervisory circuits that monitor a single

voltage. Both devices initiate an active-low reset

signal whenever the VDD supply voltage drops below

the factory-trimmed reset threshold voltage. The reset output remains low for 200 ms (typical) after the VDD

voltage rises above the threshold voltage and

hysteresis. These devices are designed to ignore fast

transients on the VDD pin. The TPS3831 device

includes a manual reset input that forces RESET low

when MR is low.

The ultralow current consumption of 150 nA makes these voltage supervisors ideal for use in low-power

and portable applications. The TPS383x devices are

specified to have the correct output logic state for

supply voltages down to 0.6 V.

The TPS383x devices feature precision factory•

trimmed threshold voltages and extremely low-power

operation. The TPS3831 device is available in a 4-

pin, 1-mm × 1-mm (DQN) X2SON package. The

TPS3839 device is available in a 3-pin SOT23 (DBZ)

package or a 4-pin, 1-mm × 1-mm (DQN) X2SON

package.