Datasheet > ADD5203ACPZ-RL

ADD5203ACPZ-RL

更新时间： 2024-02-25 07:14:56

品牌	Logo	应用领域
亚德诺 - ADI		驱动器
页数	文件大小	规格书
24页	1188K
描述
8-String,White LED Driver with SMBus and PWM Input for LCD Backlight Applications

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ADD5203ACPZ-RL 技术参数

生命周期：	Active	零件包装代码：	QFN
包装说明：	4 X 4 MM, 0.75 MM HEIGHT, ROHS COMPLIANT, MO-220WGGE, LFCSP-28	针数：	28
Reach Compliance Code：	unknown	风险等级：	5.82
数据输入模式：	SERIAL	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-XQCC-N28	长度：	4 mm
复用显示功能：	NO	功能数量：	1
区段数：	8	端子数量：	28
最高工作温度：	85 °C	最低工作温度：	-25 °C
封装主体材料：	UNSPECIFIED	封装代码：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER
认证状态：	COMMERCIAL	座面最大高度：	0.8 mm
最大供电电压：	21 V	最小供电电压：	6 V
标称供电电压：	12 V	表面贴装：	YES
温度等级：	OTHER	端子形式：	NO LEAD
端子节距：	0.4 mm	端子位置：	QUAD
宽度：	4 mm	最小 fmax：	0.1 MHz

ADD5203ACPZ-RL 数据手册

8-String, White LED Driver with SMBus and

PWM Input for LCD Backlight Applications

ADD5203

FUNCTIONAL BLOCK DIAGRAM

FEATURES

White LED driver based on inductive boost converter

Integrated 50 V MOSFET with 2.9 A peak current limit

Input voltage range: 6 V to 21 V

STEP-UP SWITCHING REGULATOR

Maximum output adjustable up to 45 V

350 kHz to 1 MHz adjustable operating frequency

Overvoltage protection (OVP) up to typical 47.5 V

Built-in soft start for boost converter

Drives up to eight LED current strings

LED current adjustable up to 30 mA for each channel

Headroom control to maximize efficiency

Adjustable dimming frequency: 200 Hz to 10 kHz

LED open and short fault protection

Selectable dimming control interface methods

PWM input

EIGHT CURRENT SOURCES

PWM DUTY EXTRACTOR

8-BIT BRIGHTNESS CONTROL LOGIC

FIXED DELAY/NO DELAY DIRECT PWM/

DC CURRENT DIMMING CONTROL

WITH PWM AND/OR SMBus INTERFACE

UNDERVOLTAGE LOCKOUT

INTERNAL SOFT START

THERMAL PROTECTION

OVERVOLTAGE PROTECTION

AUTODISABLE FOR LED OPEN/SHORT

SMBus serial input

Selectable dimming modes

Figure 1.

Fixed delay PWM dimming control with 8-bit resolution

No delay PWM dimming control with 8-bit resolution

Direct PWM dimming control

DC current dimming control with 8-bit resolution

General

Thermal shutdown

Undervoltage lockout

28-lead, 4 mm × 4 mm × 0.75 mm LFCSP_WQ

APPLICATIONS

Notebook PCs, UMPCs, and monitor displays

GENERAL DESCRIPTION

The ADD5203 is a white LED driver for backlight applications

based on high efficiency, current-mode, step-up converter tech-

nology. It is designed with a 0.15 Ω, 2.9 A internal switch and a

pin-adjustable operating frequency between 350 kHz and 1 MHz.

provides adjustable output dimming frequency range from

200 Hz to 10 kHz by an external resistor and capacitor. The

ADD5203 operates over an input voltage range of 6 V to 21 V,

but the device can function with a voltage as low as 5.6 V.

The ADD5203 contains eight regulated current sources for

uniform brightness intensity. Each current source can be driven

up to 30 mA, and the LED driving current is pin adjustable by

an external resistor. The ADD5203 drives up to eight parallel

strings of multiple series connected LEDs with a 1.5% current

matching between strings.

The ADD5203 also has multiple safety protection features to

prevent damage during fault conditions. If any LED is open or

short, the device automatically disables the faulty current source.

The internal soft start prevents inrush current during startup.

Thermal shutdown protection prevents thermal damage.

The ADD5203 is available in a low profile, thermally enhanced,

4 mm × 4 mm × 0.75 mm, 28-lead, RoHS-compliant lead frame

chip scale package (LFCSP_WQ) and is specified over the

industrial temperature range of −25°C to +85°C.

The ADD5203 provides various dimming modes. Each

dimming mode is selectable with an external dimming mode

selection pin. The LED dimming control interface can be

achieved through PWM input and/or SMBus. The device

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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与ADD5203ACPZ-RL相关器件

型号	品牌	获取价格	描述	数据表
ADD5205	ADI	获取价格	Four-String White LED Driver
ADD5205ACPZ-RL	ADI	获取价格	Four-String White LED Driver
ADD5207	ADI	获取价格	Four-String, White LED Driver
ADD5207ACPZ	ADI	获取价格	Four-String, White LED Driver for LCD Backlight Applications
ADD5207ACPZ-RL	ADI	获取价格	Four-String, White LED Driver
ADD5211	ADI	获取价格	Four-String, White LED Driver for LCD Backlight Applications
ADD5211ACPZ-R7	ADI	获取价格	Four-String, White LED Driver for LCD Backlight Applications
ADD5211ACPZ-RL	ADI	获取价格	Four-String, White LED Driver for LCD Backlight Applications
ADD-55	MEANWELL	获取价格	55W Dual Output with Battery Charger(USP Function)
ADD-55_10	MEANWELL	获取价格	55W Dual Output with Battery Charger(USP Function)

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