A8512集成电路(IC)LED驱动器规格书PDF中文资料
厂商型号 |
A8512 |
参数属性 | A8512 封装/外壳为24-SOIC(0.295",7.50mm 宽);包装为卷带(TR);类别为集成电路(IC) > LED 驱动器;A8512应用范围:背光;产品描述:IC LED DRIVER CTRLR PWM 24SOIC |
功能描述 | LED Backlight Driver for Medium/Large Displays |
文件大小 |
491.29 Kbytes |
页面数量 |
16 页 |
生产厂商 | Allegro MicroSystems |
企业简称 |
Allegro |
中文名称 | Allegro MicroSystems官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-5-11 17:50:00 |
A8512规格书详情
Description
The A8512 is a multi-output WLED/RGB driver for backlighting LCD monitors and televisions. It integrates a boost controller to drive external MOSFET, and six internal current-sinks. The boost converter operates in constant frequency (programmable) current mode control.
PWM dimming allows LED currents to be controlled in 500:1 ratio. The LED sink current is set by an external R_ISET resistor (see chart below). More than one LED sinks can be combined together to achieve even higher current per LED string. Multiple A8512s can be connected in parallel, with one master controller controlling the boost stage, and up to five slave controllers, which act as LED sinks. This allows up to 36 LED strings to be powered by just one boost converter.
Features and Benefits
▪ Six integrated high current sinks
▪ Fixed frequency current mode control with integrated gate driver
▪ 300 kHz to 1 MHz adjustable switching frequency
▪ Controlled startup using options of Enable, PWM signal, or
battery voltage ramp
▪ Parallel operation with one boost controller (master) and up to
five slave controllers
▪ Active current sharing between LED strings for ±0.6 accuracy
and matching
▪ No audible MLCC noise during PWM dimming
▪ Adjustable overvoltage protection (OVP)
▪ Open or shorted LED string protection
▪ Overtemperature, cycle-by-cycle current limit, and
undervoltage protection
▪ SOIC 24-pin package for easy single-side PCB manufacturing,
or TSSOP 24-pin and QFN 28-contact packages with exposed
thermal pad for better thermal performance
A8512属于集成电路(IC) > LED 驱动器。Allegro MicroSystems制造生产的A8512LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列,可通过标称固定电压的电源为负载(通常为发光二极管)提供电流,并且电流可控。它与用于电压调节的类似产品的主要区别在于,这类器件提供较低的反馈电压(以提高系统能效),而且通常可对器件工作点进行外部控制,可在照明应用中用于实现调光功能。
产品属性
- 产品编号:
A8512ELBTR-T
- 制造商:
Allegro MicroSystems
- 类别:
集成电路(IC) > LED 驱动器
- 包装:
卷带(TR)
- 类型:
DC DC 控制器
- 拓扑:
升压
- 内部开关:
无
- 输出数:
6
- 电压 - 供电(最低):
8V
- 电压 - 供电(最高):
24V
- 频率:
1MHz
- 调光:
PWM
- 应用:
背光
- 工作温度:
-40°C ~ 85°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
24-SOIC(0.295",7.50mm 宽)
- 供应商器件封装:
24-SOIC
- 描述:
IC LED DRIVER CTRLR PWM 24SOIC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ALLEGRO |
23+ |
NA |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 | ||
Allegro MicroSystems LLC |
23+ |
24TSSOPEP |
9000 |
原装正品,支持实单 |
询价 | ||
Allegro MicroSystems LLC |
21+ |
24TSSOPEP |
13880 |
公司只售原装,支持实单 |
询价 | ||
ALLEGRO |
21+ |
TSSOP24 |
1754 |
原装现货 |
询价 | ||
ALL |
2022 |
TSSOP24 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
ALLEGRO/雅丽高 |
21+ |
65230 |
询价 | ||||
ALLEGRO |
22+23+ |
SOP24 |
31252 |
绝对原装正品全新进口深圳现货 |
询价 | ||
Allegro |
20+ |
na |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
ALLEGRO/雅丽高 |
20+ |
TSSOP24 |
9850 |
只做原装正品假一赔十为客户做到零风险!! |
询价 | ||
Allegro |
1844+ |
55QFN-28SOIC-24 |
9852 |
只做原装正品假一赔十为客户做到零风险!! |
询价 |