参数资料
型号: A8516ELPTR-T
厂商: Allegro Microsystems Inc
文件页数: 4/17页
文件大小: 0K
描述: IC LED DVR BACKLIGHT MON 24TSSOP
标准包装: 8,000
拓扑: 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-TSSOP(0.173",4.40mm)裸露焊盘
供应商设备封装: 24-TSSOP 裸露焊盘
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
A8516
LED Backlight Driver for LCD Monitors and Televisions
Pin-out Diagrams
EN 1
PGND 2
DRIVER 3
VREG7V 4
VIN 5
24 PWM
23 FAULT
22 LED6
21 LED5
20 LED4
EN 1
PGND 2
DRIVER 3
VREG7V 4
VIN 5
24 DGND
23 PWM
22 FAULT
21 LED6
20 LED5
AGND 6
AGND 7
VBIAS 8
OVP 9
SENSE2 10
SENSE1 11
ISET 12
19 LGND
18 LGND
17 LED3
16 LED2
15 LED1
14 COMP
13 FSET
VBIAS 6
NC 7
OVP 8
SENSE2 9
SENSE1 10
ISET 11
AGND 12
PAD
19 LED4
18 LGND
17 LED3
16 LED2
15 LED1
14 COMP
13 FSET
Terminal List Table
Package LB
Package LP
Number
LB LP
Name
Function
1
2
3
4
5
6, 7
8
9
10
11
12
13
14
15,16,17
18,19
20,21,22
23
24
1
2
3
4
5
12
6
8
9
10
11
13
14
15,16,17
18
19,20,21
22
23
24
7
PAD
EN
PGND
DRIVER
VREG7V
VIN
AGND
VBIAS
OVP
SENSE2
SENSE1
ISET
FSET
COMP
LED1-3
LGND
LED4-6
ˉFˉ ˉA ˉ ˉUˉˉLˉ ˉTˉ
PWM
DGND
NC
PAD
Device Enable. Apply logic-high signal to enable, low to shut down.
Power ground for external FET gate driver. Connect directly to R SC ground and to common star ground.
Gate driver terminal to drive external MOSFET.
Gate driver supply from internal voltage regulator. Bypass with 0.1 to 1 μ F ceramic capacitor to PGND.
Input supply voltage for the IC.
Analog (signal) GND for the IC. Connect to common star ground.
Bias supply voltage from internal regulator. Bypass with 0.1 to 1 μ F ceramic capacitor to AGND
Overvoltage Protection terminal. Connect this pin to output capacitor through a resistor R OVP to set the
OVP threshold.
Connect to ground side of current sense resistor R SC .
Connect to high side of current sense resistor R SC .
Sets 100% Current through LED strings; connect R ISET from ISET to AGND.
Sets switching frequency; connect R FSET from FSET to AGND.
Compensation pin; connect C COMP (1 μ F typical) capacitor to AGND.
LED current sinks; connect unused LEDx pins to ground to disable.
LED current sink ground; connect to common star ground.
LED current sinks; connect unused LEDx pins to ground to disable.
This open-drain output is pulled low when fault condition occurs; connect to external pull-up resistor.
Pulse width modulation LED-current control; apply logic level PWM for dimming.
Digital ground for input control signals (EN and PWM); connect to common star ground.
Not connected electrically.
Exposed pad. Solder to GND plane for enhanced thermal dissipation.
Allegro MicroSystems, LLC
115 Northeast Cutoff
4
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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