lx1663 Microsemi Corporation, lx1663 Datasheet - Page 6

• Manufacturer Part Number: lx1663
• Description: Single-chip Programmable Controllers With 5-bit
• Manufacturer: Microsemi Corporation

LX1662/62A, LX1663/63A
6
V
CC_CORE
INV
SS
C
T
11
1
2
3
100mV
40mV
**
VID0
4
10k
VID1
5
Error Comp
CS Comp
VID2
DAC
V
6
CC
D OUT
VID3
7
UVLO
10.6/10.1
2V Out
VID4
8
FIGURE 5 — Block Diagram
OV
Trimmed
2V REF
Internal
V
CC
V
REG
Controller
Off-Time
Note: Pin numbers are correct for LX1663/1663A, 16-pin package.
R DOM
Before
Break
Make
SYNC EN
UV Comp
PWM Latch
OV Comp
S
R
Comp
Q
Q
* Not connected on the LX1662/1662A.
** 60mV in LX1662A & LX1663A
0.7V
LX1663/1663A ONLY
16
15
14
13
12
10
9
V
TDRV
GND
BDRV
V
OV*
PWRGD*
C1
CC