Datasheet > AAT2430BIDX-T1

AAT2430BIDX-T1

更新时间： 2024-01-19 13:13:08

品牌	Logo	应用领域
思佳讯 - SKYWORKS		/
页数	文件大小	规格书
3页	245K
描述
16 Channel White LED Driver Solution with LED Current and Timing Control

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AAT2430BIDX-T1 数据手册

PRODUCT SUMMARY

AAT2430B

16 Channel White LED Driver Solution with LED Current andTiming Control

General Description

Features

•

The AAT2430B is a highly integrated, high efficiency white

LED backlight solution for large size LCD panels used in

LCD TVs. By controlling external power MOSFETs (such as

the Skyworks' AAT2491 high-voltage TrenchDMOS

array), the AAT2430B facilitates 16 current sink channels

to provide precision constant-current drive for strings of

white LEDs, where the number of series-connected LEDs

per string is only limited by the system LED voltage sup-

ply. Current in each backlight string and string-to-string

matching is controlled using I-Precise™ sensing and con-

trol circuitry, a novel on-chip method to accurately control

drain current in external discrete power MOSFETs inde-

pendent of their construction and without the need for

precision sense resistors.

 V_INRange: 10.8V – 28V

 16 Programmable LED Current Sinks

±1.5% Accuracy @ R_SET= 3.01kΩ

±1.5% Matching @ R_SET= 3.01kΩ

▪

•

 SPI Interface

Digitally Programmable Individual Channels

Up to 15MHz Clock Speed

Read/Write Registers

▪

•

 High Resolution Digital Control for Individual

Channels

12-bit Resolution Grayscale PWM Brightness

12-bit Resolution Channel Phase Delay

 8-Bit Resolution Global Current Setting

(Dot Correction)

▪

•

 V_SYNCPWM and Delay Synchronization

 Device Addressing

A 15MHz SPI compatible interface allows fast, indepen-

dent digital control of each current sink. Full scale LED

current is programmed using an external resistor. DOT

correction may be applied globally to all sink channels

with 8-bit resolution. Both phase delay and grayscale

clock (GS Clock) PWM on-time are user programmable

with 12-bit resolution for each current sink channel.

Timing and synchronization are determined by exter-

nally applied V_SYNCand GS Clock signals.

4 Possible Address Settings

Up to 64 Current Sinks

▪

•

 Integrated Fault Protection

Open Circuit LED(s)

Programmable Short LED Threshold

Over-Temperature Protection

▪

•

 9mm x 9mm 64-pin QFN Package with 0.5mm pitch

or 14mm x 14mm 64-pin Low Profile QFP Package

with 0.8mm pitch

The AAT2430B provides latched fault handling and fault

reporting through the SPI interface and fault flag output

pin. The fault detection system reports open or short cir-

cuit LED strings and over-temperature events. The short

circuit LED detection threshold is user programmable.

Applications

•

 Large Size LCD TVs, Panels

 White LED Backlight, Dynamic Edge LCD TV Backlight

The LED string supply voltage may be regulated by using

the voltage or current mode current sense feedback sig-

nal to the LED voltage regulator. This analog signal rep-

resents the highest V_Fstring of LEDs. Thermal protection

circuitry shuts down the device in the event of an over-

temperature condition.

The AAT2430B is available in the Pb-free, thermally

enhanced 64-pin 9mm x 9mm QFN and 64-pin 14mm x

14mm LQFP packages.

Skyworks Solutions, Inc.

• Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201968A

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 18, 2012

12 3

中文翻译

下载PDF

与AAT2430BIDX-T1相关器件

型号	品牌	获取价格	描述	数据表
AAT2430BISX-T1	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control
AAT2430C	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control
AAT2430CIDX-T1	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control
AAT2430CISX-T1	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control
AAT2491	SKYWORKS	获取价格	Dual N-Channel HV Cascode-Clamp, Lateral TrenchDMOS Array
AAT2500	ANALOGICTECH	获取价格	1MHz Step-Down Converter/LDO Regulator
AAT2500B	ANALOGICTECH	获取价格	Adjustable 3-Channel Regulator
AAT2500BIZL-BAA-T1	ANALOGICTECH	获取价格	Adjustable 3-Channel Regulator
AAT2500IFP-AQ-T1	ANALOGICTECH	获取价格	1MHz Step-Down Converter/LDO Regulator
AAT2500IWP-AG-T1	ANALOGICTECH	获取价格	1MHz Step-Down Converter/LDO Regulator

与AAT2430BIDX-T1相关文章

SZNUP2105LT1G电气参数、产品特性详解
2024-06-25

1
FT232RL资料解读：引脚说明、参数详情、产品特性
2024-06-25

1
RC0402FR-07100KL资料解读：电气参数、产品特性
2024-06-25

1
RC0603FR-070R数据手册解读：特性、应用与替换型号推荐
2024-06-25

1

产品中心

服务支持

精选活动

关于我们

帮助中心

AAT2430BIDX-T1

AAT2430BIDX-T1 数据手册

与AAT2430BIDX-T1相关器件

与AAT2430BIDX-T1相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

AAT2430BIDX-T1

AAT2430BIDX-T1 数据手册

与AAT2430BIDX-T1相关器件

与AAT2430BIDX-T1相关文章

您还可以找

您在本页遇到什么问题？