Datasheet > AOZ1960

AOZ1960

更新时间： 2024-11-15 12:51:39

品牌	Logo	应用领域
美国万代 - AOS		驱动器
页数	文件大小	规格书
20页	911K
描述
Multi-String Boost White LED Driver

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

AOZ1960 数据手册

AOZ1960

Multi-String Boost White LED Driver

General Description

Features

The AOZ1960 is a high-efficiency boost regulator with

integrated 55V boost switch and 30V input protection

switch. It is designed to drive 6 parallel strings of multiple

series-connected white LEDs for LCD backlight

applications. The current of each string is individually

regulated by an internal current regulator. The AOZ1960

has a wide input voltage range from 7V to 24V. The

maximum LED current can be adjusted from 15mA to

30mA using an external resistor connected to ISET pin.

z 7V to 24V input voltage range

z Integrated 30V input switch

z 55V/2A internal N-channel MOSFET

z Six parallel strings

z Programmable switching frequency

z 500mV low dropout current regulator

z Resistor programmable maximum LED current

z Analog dimming via ABRT pin

z Digital PWM dimming via DBRT pin

z Dimming range with 8-bit resolution

z Cycle-by-cycle current limit

The AOZ1960 support two dimming control modes to

enable a wide variety of applications. In analog dimming

mode, the LED current can be directly adjusted through

ABRT pin to achieve 10% to 100% brightness range.

In digital dimming mode, a PWM signal on DBRT controls

the brightness by turning the current regulators on and

off. The brightness is proportional to the duty cycle of the

PWM signal.

z Open and short LED protection

z Output over-voltage and short protection

z Thermal overload protection

z Internal Soft-start

The AOZ1960 has multiple features to protect the

regulator under fault conditions. An internal 30V input

protection switch protects against catastrophic failure

conditions such as output short-circuits. A separate

over-voltage protection (OVP) loop limits the output

voltage if LED strings fail open. Cycle-by-cycle

over-current protection (OCP) limits the peak inductor

current. Built-in soft-start minimizes the inrush current

during startup. Thermal shutdown provides another level

of protection.

z 7mm x 4mm DFN package

Applications

z Notebook PC display

z Tablet PC display

z Desktop monitors

z Portable DVD players

z Digital photo frames

z Car navigation display

The integrated 55V power MOSFET reduces the cost

and external component count, while allowing output

voltages as high as 55V. Low dropout voltage of LED

current regulator (500mV) minimizes power loss. In

addition, automatic pulse skipping operation improves

efficiency at light loads. The AOZ1960 features

programmable switching frequency allows for trade-offs

between solution size and electrical efficiency.

The AOZ1960 is available in a thermally enhanced

24-pin 7mm x 4mm DFN package and operates over the

temperature range of -40°C to +85°C.

Rev. 1.0 August 2010

www.aosmd.com

Page 1 of 20

12 3 4 5 6 7...20

中文翻译

下载PDF

与AOZ1960相关器件

型号	品牌	获取价格	描述	数据表
AOZ1977	AOS	获取价格	High Voltage LED Driver IC
AOZ1977-1	AOS	获取价格	High Voltage LED Driver IC
AOZ1978	AOS	获取价格	Dual Channel High Voltage LED Driver IC
AOZ2003	AOS	获取价格	3A Ultra Low Dropout Linear Regulator
AOZ3010PI	AOS	获取价格	EZBuckâ¢ 2 A Synchronous Buck Regulator
AOZ3011PI	AOS	获取价格	EZBuckâ¢ 3 A Synchronous Buck Regulator
AOZ3013PI	AOS	获取价格	Plastic Encapsulated Device
AOZ3015AI	AOS	获取价格	EZBuckâ¢ 3 A Synchronous Buck Regulator
AOZ3015PI	AOS	获取价格	EZBuckâ¢ 3 A Synchronous Buck Regulator
AOZ3017	AOS	获取价格	EZBuckâ¢ 4 A Synchronous Buck Regulator

与AOZ1960相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

6
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

3
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

29
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

12

产品中心

服务支持

精选活动

关于我们

帮助中心

AOZ1960

AOZ1960 数据手册

与AOZ1960相关器件

与AOZ1960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

AOZ1960

AOZ1960 数据手册

与AOZ1960相关器件

与AOZ1960相关文章

您还可以找

您在本页遇到什么问题？