LX1742CDU データシートの表示（PDF） - Microsemi Corporation
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LX1742CDU Datasheet PDF : 13 Pages
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INTEGRATED PRODUCTS
LX1742
High Efficiency High Voltage Boost Controller
PRODUCTION DATA SHEET
EVALUATION BOARD (CONTINUED)
TP1
Testpoint
1 Vin
12
J4
2 /SHDN
C1
4.7µF
3
2
35V
+
L1
J3
47.0µH Jumper
4
1 J2
Jumper
CR1
UPS5819
U1
SW
OUT
IN
FB
/SHDN CS
ADJ
1
2
R1
625K
J1
Jumper
1
2
J4
R6
Jumper
100K
C4
2
J5
2.2µF
35V
Jumper
1
ADJ
GND
LX1742CDU
Q1
MMBT3904/SOT
R5
1K
GND
C3
1000pF
+
C2
R3
4.7µF
1M
35V
R4
72K
R2
1K
D4
BZX84C24/SOT
R6
1K
J5
TP2
Testpoint
TP3
Testpoint
TP4
Testpoint
Figure 4 – LXE1742 Boost Evaluation Board Schematic
Note: Factory installed jumper positions shown
Figure 5 – LXE1742 - LX1742 Circuit Evaluation Board
Figure 6 – LXE1742 - Evaluation Board Trace Layout
Copyright © 2000
Rev. 1.0b, 2005-03-03
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 10
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