L6611 Datasheet, PDF (1/28 Pages) STMicroelectronics – DIGITALLY PROGRAMMABLE SECONDARY HOUSEKEEPING CONTROLLER

L6611
DIGITALLY PROGRAMMABLE SECONDARY
HOUSEKEEPING CONTROLLER
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
TYPICAL APPLICATION CIRCUIT
WIDE RANGE
MAINS
+
-
MAIN
CONTROL
BCD TECHNOLOGY
DIP20
SO20
ORDERING NUMBERS:
L6611N
L6611D
L6611DTR(T & Reel)
APPLICATIONS
s SWITCHING POWER SUPPLIES FOR
DESKTOP PC'S, SERVERS AND WEB
SERVERS
s SUPERVISOR FOR DISTRIBUTED POWER
+12V
+5V
COM
-12V
+3.3V
+5Vaux
April 2002
AUXILIARY
CONTROL
Bout
VDD
Dmon
Cout
12V
5V
MFault
-12V
3V3
Aout
Gnd
L6611
1/28