Features

• Input Voltage Range: 2.5 V to 5.5V

• Power-up and Power-down Sequence Control

• Single Enable Control Signal Input Channel

• Three Power Sequence Channels:

– Open-Drain Output

– Selectable Timing Options

– Selectable Power-down Sequence Options

• Support Cascaded Device Output

• Low Power Consumption

• Junction Temperature: −40°C to +125°C

• Small SOT23-6 Package

Applications

• Video Surveillance

• Network Equipment and Servers

• Industrial Control

• FPGA/ASIC/CPLD Power Sequence Control

• Power Supply Sequence Control

Description

The TPK1032 series of products is a simple power

sequencer, which provides power-up and power-down

sequence control of multi-channel power supplies.

Furthermore, the TPK1032 series supports a maximum

of three devices cascaded to control the sequence of ninechannel power rails in one system.

The TPK1032 series of products has three open-drain

output channels, and all the channels can be pulled up

to any required voltage level equal to or lower than VCC.

When the TPK1032 series is enabled and the EN pin

goes high, the three output channels turn to high with

the sequence of FLAG1-FLAG2-FLAG3 after the selected

delay period individually. When the TPK1032 series is

disabled and the EN pin goes low, the three output

channels turn low one by one with the selected sequence

after the selected delay period individually.

The TPK1032 series of products provides a SOT23-6

package with a guaranteed junction temperature range (TJ)

from −40°C to +125°C.