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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

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.

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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.