A8504 查看數據表（PDF） - Allegro MicroSystems
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A8504 Datasheet PDF : 18 Pages
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A8504
WLED/RGB Backlight Driver for Medium Size LCDs
Performance Characteristics
Turn-On with PWM Signal
VIN = 5 V, VBAT = 15 V; fPWM= 100 Hz; fSW= 1 MHz
8S8P configuration, 40 mA per channel
PWM
C1
50% Duty Cycle
IIN
C2
VOUT
C3
C4
IOUT
Symbol
C1
C2
C3
C4
t
t
Parameter
VPWM
IIN
VOUT
IOUT
time
Units/Division
5V
500 mA
10 V
200 mA
5 ms
PWM
C1
1% Duty Cycle
IIN
C2
VOUT
C3
C4
IOUT
Symbol
C1
C2
C3
C4
t
t
Parameter
VPWM
IIN
VOUT
IOUT
time
Units/Division
5V
500 mA
10 V
200 mA
20 ms
Soft Start Operation
VIN = 5 V, VBAT = 15 V; fSW= 1 MHz
8S8P configuration, 40 mA per channel
PWM
C1
IIN
C2 VOUT
C3
C4
IOUT
t
Symbol
C1
C2
C3
C4
t
Parameter
VPWM
IIN
VOUT
IOUT
time
Units/Division
5V
500 mA
10 V
200 mA
200 μs
Allegro MicroSystems, Inc.
7
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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