1 Features

1• Ultralow Supply Current: 380 nA

• Wide Supply Voltage Range: 4.5 V to 18 V

• High Threshold Accuracy: ±2.5%

• Internal Hysteresis

• Push-Pull Output

• 20-ms (max) Delay Timing

• Factory-Trimmed, Fixed-Voltage Thresholds

• Specified Operating Temperature Range:

–40°C to +85°C

• Operational from –40°C to +105°C

• Package: 5-Pin SOT

industry2

Applications

• Portable and Battery-Powered Equipment

• Desktops, Notebooks, and Ultrabooks

• Industrial Systems

• Servers

• Security Systems

3 Description

The TPS3847 family consists of wide operating

voltage, ultralow-current devices that monitor the voltage at the supply pin. The device asserts an

active-low reset signal whenever the VCC supply

voltage drops below the factory-trimmed reset

threshold voltage. The reset output remains asserted for 20 ms (max) after the VCC voltage rises above

the threshold voltage.

The ultralow current consumption of 380 nA

combined with 18-V capability makes the TPS3847

ideal for use in low-power and portable applications.

The TPS3847 features precision, factory-trimmed

threshold voltages and extremely low-power

operation. The TPS3847 is available in an industry2

standard, 5-pin, SOT package.