amc7140 ADD Microtech Inc., amc7140 Datasheet - Page 6

• Manufacturer Part Number: amc7140
• Description: 700ma High Voltage Adjustable Current Regulator With Enable Control
• Manufacturer: ADD Microtech Inc.

LED Backlight Solution:
backlight module. The number of LEDs in the string is variable even with certain fixed power source since the output
voltage of the DC-to-DC converter could be modulated according to feedback signal.
AC Voltage Input:
Simply cut off the internal feedback path of the power supply system and then feed the signal from AMC7140 back to
the power supply system instead.
Copyright © 2008 ADDtek Corp.
AMC7140 could coordinate with any type of DC-to-DC converter through feedback path to realized LED
AMC7140 could work with any kind of well-known or well-developed switch-mode power supply system.
1 2 V
E n a b le
D C
85V
o r 2 4 V
Enable
AC ~
265 V
D C
FB
Supply
Power
C o n v e rte r
AC
D C / D C
R
R
R
F B
R
D
R
SET
SET
b
b
S E T
S E T
2
1
2
1
R
V
b
880Ω
DD
O u tp u t
8 8 0 Ω
ISET
VDD
OE
6
IS E T
V D D
O E
AMC7140
D
b
A M C 7 1 4 0
GND
G N D
OUT
O U T
DD032_D -- AUGUST 2008
AMC7140