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.