LX1681(2005) データシートの表示（PDF） - Microsemi Corporation
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LX1681 Datasheet PDF : 9 Pages
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Copyright © 1999
Rev. 1.0 5/99
PRODUCT DATABOOK 1996/1997
VOLTAGE-MODE PWM CONTROLLERS
PRODUCTION DATA SHEET
APPLICATION INFORMATION
VBOOST
VIN
12V
5V
LX1681/1682
C3
1 VFB
CSS
2 SS
VCC 8
CS 7
0.1µF
LX1681
3 N.C.
VC1 6
4 GND
TDRV 5
C1
RSET
RSENSE
Q1
L1
D2
VOUT
C2
R1
R2
FIGURE 3 — Current Sensing Using Sense Resistor
VIN
5V
C1
1 VFB
CSS
2 SS
VCC 8
D2
CS 7
0.1µF
LX1682
3 GND
VC1 6
C4
4 BDRV
TDRV 5
Q1
L1
RSET
Q2
VOUT
C2
R1
R2
FIGURE 4 — Bootstrap Circuit For 5V Only Operation
PRODUCTION DATA - Information contained in this document is proprietary to LinFinity, and is current as of publication date. This document
may not be modified in any way without the express written consent of LinFinity. Product processing does not necessarily include testing of
all parameters. Linfinity reserves the right to change the configuration and performance of the product and to discontinue product at any time.
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