LX1665 Ver la hoja de datos (PDF) - Microsemi Corporation
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LX1665 Datasheet PDF : 17 Pages
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PRODUCT DATABOOK 1996/1997
LX1664/64A, LX1665/65A
DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
PRODUCTION DATA SHEET
BLOCK DIAGRAM
SS 1
INV 2
VCC_CORE 3
CT 13
40mV
100mV **
VCC
2V Out
UVLO
10.6/10.1
Trimmed
2V REF
Internal
VCC
VREG
Error Comp
CS Comp
Off-Time
Controller
PWM Latch
SQ
R DOM R Q
Break
Before
Make
SYNC EN
Comp
OV Comp
0.7V
UV Comp
18 VC1
17 TDRV
16 GND
15 BDRV
14 VCC
12 OV*
10 PWRGD*
10k
DAC OUT
DAC
1.5V
Linear Op Amp
LX1665/1665A ONLY
11 LDRV
4
VID0
5
VID1
6
VID2
7
VID3
8
VID4
9 LFB
Note: Pin numbers are correct for LX1665/1665A, 18-pin package.
* Not connected on LX1664/1664A.
** 60mV in LX1664A/1665A.
FIGURE 5 — LX1664/1665 Block Diagram
6
Copyright © 1999
Rev. 1.2 11/99
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