参数资料
型号: A8510GECTR-T
厂商: Allegro Microsystems Inc
文件页数: 20/33页
文件大小: 0K
描述: IC LED DRVR BCKLGHT/WHT 26QFN-EC
标准包装: 1
拓扑: PWM,升压(升压)
输出数: 8
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 600kHz ~ 2.25MHz
电源电压: 5 V ~ 40 V
安装类型: 表面贴装
封装/外壳: 26-WFQFN 裸露焊盘
供应商设备封装: 26-QFN/MLP-EP(4x4)
包装: 标准包装
工作温度: -40°C ~ 105°C
其它名称: 620-1385-6
A8510
Wide Input Voltage Range, High Efficiency
Fault Tolerant LED Driver
When selecting the external PMOS, check for the following
parameters:
? Drain-source breakdown voltage V (BR)DSS > –40 V
? Gate threshold voltage (make sure it is fully conducting at
V GS = -4 V, and cut-off at –1 V)
If the input current level goes above the preset current limit
threshold, the A8510 will shut down in less than 3 μ s regardless
of user input (figure 29). This is a latched condition. The Fault
flag is also set to indicate a fault. This feature is meant to prevent
catastrophic failure in the system due to a short of the inductor or
output voltage to GND.
? R DS(on) : Make sure the on-resistance is rated at V GS = -4.5 V or
similar, not at -10 V; derate it for higher temperature
FAULT
C1
V IN
R SC
Q1
To L1
R ADJ
VGATE
VSENSE
A8510
C2
VGATE
I IN
A8510 shuts down
VIN
C3
C4
EN/PWM
t
Figure 28. Typical circuit showing the implementation of the input
disconnect feature.
Figure 29. Diagram showing input disconnect current limit wave forms
during fault condition; shows ˉFˉ ˉA ˉUˉˉLˉ ˉTˉ (ch1, 5 V/div.), VGATE (ch2,
10 V/div.), I IN (ch3, 2 A/div.), and EN/PWM (ch4, 5 V/div.), t = 5 μ s/div.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
20
相关PDF资料
PDF描述
A8511KLPTR-T IC LED DVR 150MA AUTO 28-TSSOP
A8512ELBTR-T IC LED DVR WHT/RGB BKLGT 24SOIC
A8513KLPTR-T IC LED DRVR AUTO BCKLGHT 16TSSOP
A8514KLPTR-T IC LED DVR WHT 4X80MA 16-ETSSOP
A8515GLPTR-T IC LED DVR WHT/RGB BKLGT 16TSSOP
相关代理商/技术参数
参数描述
A8511 制造商:ROCKWE 功能描述:
A8511KLPTR-T 功能描述:IC LED DVR 150MA AUTO 28-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 特色产品:LM3445 TRIAC Dimmable LED Driver 标准包装:55 系列:PowerWise® 恒定电流:是 恒定电压:- 拓扑:PWM,降压(降压) 输出数:1 内部驱动器:无 类型 - 主要:- 类型 - 次要:高亮度 LED(HBLED) 频率:30kHz ~ 1MHz 电源电压:8 V ~ 12 V 输出电压:- 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SOICN 包装:管件 工作温度:-40°C ~ 125°C 产品目录页面:1285 (CN2011-ZH PDF) 其它名称:LM3445M
A8512 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:LED Backlight Driver for Medium/Large Displays
A8512EETTR-T 功能描述:IC LED DVR WHT/RGB BKLGT 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压(升压),切换式电容器(充电泵) 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP,10-MSOP(0.118",3.00mm 宽) 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C
A8512ELBTR-T 功能描述:IC LED DVR WHT/RGB BKLGT 24SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压(升压),切换式电容器(充电泵) 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP,10-MSOP(0.118",3.00mm 宽) 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C