LX1660 View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
Manufacturer
LX1660 Datasheet PDF : 15 Pages
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LX1660/1661
PRODUCT DATABOOK 1996/1997
ADVANCED PWM CONTROLLER
PRODUCTION DATA SHEET
BLOCK DIAGRAM
EN 1
ENABLE
OTADJ 2
SGND 3
1.4V
VCC
2V OUT
UVLO
10.6/10.1
VREF 4
INV 5
NINV/SS 6
HICCUP 7
CT 8
40mV (1661 only)
ERROR
COMP
OTADJ
VPEAK = 2V
VVAL = 1V
UPGRADE
0.7V
2V REF
EN
INTERNAL
VCC
VREG 5V
VREG GOOD
PWM LATCH
S
Q
R DOM R
Q
BREAK
BEFORE
MAKE
OFFTIME CONTROL
SYNC EN
COMP
IMAX
VCC
10 I
S
Q
I
R
Q
HICCUP LATCH
HICCUP
1.5V
90mV
16 VC1
15 TDRV
14 PGND
13 BDRV
12 VCC
11 SYNCEN
10 CS+
9 CS-
FIGURE 1 — Block Diagram
4
Copyright © 1998
Rev. 1.1 7/98
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