A8504 View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A8504' PDF : 18 Pages View PDF
A8504
WLED/RGB Backlight Driver for Medium Size LCDs
Functional Block Diagram
VIN
5 V ±10%
CIN
COMP
CC
VIN
Reference
and
+
Soft Start
–
VBAT
5 to 25 V
CBAT
L1
D1
VOUT
SW SW
COUT
+
–
RQ
S
∑
ROVP
SKIP
FSET
RFSET
AGND
GND
SEL1
SEL2
SEL3
PWM
100 kΩ
OSC
Feedback
Loop
On/Off
PWM Generator
IOUT_SET
RISET
ISET
100 kΩ
PGND LGND
PGND
Current Sinks
OVP
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
Allegro MicroSystems, Inc.
3
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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