Microsemi LX1970, Руководство пользователя

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LX1970 E
VALUATION
B
OARD
U
SER
G
UIDE
Copyright © 2002
Microsemi
Page 6
Rev. 1.1 9/23/03
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
L X 1 9 7 0 E V A L U A T I O N B O A R D S C H E M A T I C
VDD
GND
LX197xIDU
R3 50K
R5
10.0K
SNK Adjust
R6 100K
C1
1.0 F
N/C
VDD
N/C
SRC
GND
N/C
N/C
SNK
1
2
3
4
5
6
7
8
D1 IN4148
D2
1N4148
SRC
Bottom
Adjust
R 4 100K
R2 10.0K
SRC Top
Adjust
R1 100K
GND
SNK
SNK Pull-up
SRC Adj Pull-up
SRC Fixed Pull-up
SRC Diode Pull-down
D2 In
D2 Out
C3
1.0 F
J2
J1
J4
R7
4.12K
ISET
GND I
OUTA
I
OUTB
VD
D
EN
A
LX1990ILM
SRC
2
1
3
6
4
5
J3
C4
0.1 F
Driver
SNK Pull-up
SRC open
Divider
LX1970 only
LED Driver
LED1
LED2
Figure 2 –
Schematic