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UCC3918 - Low On-Resistance Hot Swap Power Manager

General Description

The UCC3918 low on-resistance hot swap power manager provides complete power management, hot swap capability, and circuit breaker functions.

The only components needed to operate the device, other than supply bypassing, are a timing capacitor, and two programming resistors.

Key Features

  • include an open-drain fault output indicator, thermal shutdown, undervoltage lockout, 3 V to 6 V operation, and a low thermal resistance small-outline power package. Please be aware that an important notice concerning availability, standard warranty, and use in critical.

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Datasheet Details

Part number UCC3918
Manufacturer Unitrode
File Size 362.14 KB
Description Low On-Resistance Hot Swap Power Manager
Datasheet download datasheet UCC3918 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ą UCC3918 LOW ONĆRESISTANCE HOT SWAP POWER MANAGER D Integrated 0.075-Ω Power MOSFET D 3 V to 6 V Operation D External Analog Control of Fault Current from 0 A to 4 A D Independent Analog Control of Current Limit Up to 5 A D Fast Overload Protection D Unidirectional Switch D Minimal External Components D 1-µA ICC When Disabled D Programmable On Time D Programmable Start Delay D Fixed 3% Duty Cycle SLUS384B – NOVEMBER 1999 – REVISED JUNE 2000 DP PACKAGE (TOP VIEW) VIN VIN VIN GND* GND* FAULT SHTDWN IFAULT 1 2 3 4 5 6 7 8 16 VOUT 15 VOUT 14 VOUT 13 GND* 12 GND* 11 NC 10 CT 9 IMAX Pin 5 serves as the lowest impedance to the electrical ground. Pins 4, 12, and 13, serve as heat sink/ground. These pins should be connected to large etch PCB areas to help dissipate heat.