L6611D datasheet(1/28 Pages) STMICROELECTRONICS

Part #	L6611D

Description	DIGITALLY PROGRAMMABLE SECONDARY HOUSEKEEPING CONTROLLER

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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L6611

April 2002

s

OV/UV DETECTION FOR 3.3V, +5V, ±12V

RAILS AND 5V (OR 3.3V) AUX. VOLTAGE

s

AC MAINS UV (BROWNOUT) DETECTION

WITH HYSTERESIS

s

ON-LINE DIGITAL TRIMMING FOR 5V/12V,

3.3V, 5V (OR 3.3V) AUX. FEEDBACK

REFERENCES AND AC MAINS UV.

s

DIGITALLY SELECTABLE OPTIONS

s

ERROR AMPLIFIERS FOR 5V/12V RAILS

(MAIN SUPPLY), 3V3 POST-REGULATOR

(MAG_AMP OR LINEAR) AND AUXILIARY

SUPPLY.

s

MAIN SUPPLY ON/OFF CONTROL AND

POWER GOOD SIGNAL

s

50mA CROWBAR DRIVE FOR AUXILIARY

OUTPUT OVP.

s

OPEN GROUND PROTECTION

s

8ms DIGITAL SOFT START

s

64 ms UV/OC BLANKING AT START-UP

APPLICATIONS

s

SWITCHING POWER SUPPLIES FOR

DESKTOP PC'S, SERVERS AND WEB

SERVERS

s

SUPERVISOR FOR DISTRIBUTED POWER

DIP20

SO20

ORDERING NUMBERS:

L6611N

L6611D

L6611DTR(T & Reel)

DIGITALLY PROGRAMMABLE SECONDARY

HOUSEKEEPING CONTROLLER

TYPICAL APPLICATION CIRCUIT

+5Vaux

WIDE RANGE

MAINS

+5V

COM

+3.3V

+12V

-

+

MAIN

CONTROL

AUXILIARY

CONTROL

VDD

12V

Cout

Gnd

MFault

Aout

5V

3V3

L6611

-12V

Dmon

Bout

BCD TECHNOLOGY

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