PIP401

OR-ing Intelligent Switch

Rev. 03 — 5 November 2002

Product data

VCC

VRS

TFL

GND

VO

VI

003aaa198

1.

Description

The PIP401 is an OR-ing Intelligent Switch (ORIS), a dedicated power OR-ing

device, that combines the simplicity of a diode with the efficiency of a MOSFET

switch.

The PIP401 will have optimum use in supply lines with up to 40 A loads. For higher

currents, two or more PIP401 devices can be used in parallel. The intended

application is parallel redundant power supply networks, where the PIP401 provides

a high-efficiency alternative to a rectifier diode. When the input voltage is greater than

the output voltage, the PIP401 conducts with very low voltage drop. When the input

voltage drops below the output voltage, the PIP401 switches off very quickly, blocking

the flow of reverse current. Remote sensing of the load voltage compensates for

inductance in the power supply lines. A thermal indicator is provided to allow power

supply shutdown or load reduction if the junction temperature exceeds 150

°C.

2.

Features

3.

Applications

4.

Ordering information

Table 1:

Ordering information

Type number

Package

Name

Description

Version

PIP401

Plastic, single-ended surface mount package (Philips version of

SOT427