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003aaa198
PIP401
OR-ing Intelligent Switch
Rev. 03 鈥?5 November 2002
Product data
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 ef鏗乧iency 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-ef鏗乧iency alternative to a recti鏗乪r 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 鏗俹w 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
擄C.
2. Features
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Very low voltage drop (typ 70 mV at 40 A)
Controlled turn-on
Fast turn-off
Remote sensing
Overtemperature 鏗俛g
Low thermal resistance
ESD protected
Surface mount package.
3. Applications
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Compact PCI power supplies
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Telecommunications equipment power supplies
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High-reliability, parallel redundant power supply networks.
4. Ordering information
Table 1:
Ordering information
Package
Name
PIP401
D
2
-PAK (7 lead)
Description
Version
Plastic, single-ended surface mount package (Philips version of SOT427
D
2
-PAK); 7 leads (centre lead cropped).
Type number