参数资料
型号: A8512ELBTR-T
厂商: Allegro Microsystems Inc
文件页数: 15/18页
文件大小: 0K
描述: IC LED DVR WHT/RGB BKLGT 24SOIC
标准包装: 3,000
拓扑: 高端,低端,PWM,升压(升压)
输出数: 6
内部驱动器:
类型 - 主要: 背光
类型 - 次要: RGB,白色 LED
频率: 300kHz ~ 1MHz
电源电压: 8 V ~ 24 V
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SOIC W
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
A8512
LED Backlight Driver for LCD Monitors and Televisions
V OUT
36 LEDs per string
V BAT
24 to 48 V
C1
C2
L1
Q1
D1
R SC
R OVP
C3
C4
V IN
12 V
P
P
DRIVER SENSE1 SENSE2 OVP
VIN
VBIAS
P
VREG7V
R1
C5
FAULT
EN
A8512
LED1
C6
PWM
LED2
R2
R3
Rz1
Cz1
R FSET
R ISET
COMP
FSET
ISET
LED3
LED4
LED5
LED6
AGND AGND LGND LGND PGND
P
R2, R3 optional (A8512 has
internal pull-down resistors)
Figure 15. Typical high-voltage application circuit with single controller; VIN pin separate from V BAT .
V OUT
18 LEDs per string
V BAT
12 to 48 V
C1
C2
L1
Q1
D1
R SC
R OVP
C3
C4
V IN
12 V
P
P
DRIVER SENSE1 SENSE2 OVP
VIN
VBIAS
P
R1
C5
FAULT
A8512
LED1
EN
PWM
LED2
R2
R3
R FSET
R ISET
COMP
FSET
ISET
LED3
LED4
Rz1
Cz1
C6
VREG7V
LED5
LED6
AGND AGND LGND LGND PGND
P
R2, R3 optional (A8512 has
internal pull-down resistors)
Figure 16. Typical medium-voltage application circuit driving high-current (up to 160 mA) LED strings.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
15
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