Datasheet > AOZ1977-1

AOZ1977-1

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
16页	589K
描述
High Voltage LED Driver IC

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AOZ1977-1 数据手册

AOZ1977-1

High Voltage LED Driver IC

General Description

Features

The AOZ1977-1 is a high-efficiency LED driver

controller for high voltage LED backlighting

applications. It is designed to drive high-brightness

LED light bar in LED TV applications. The AOZ1977-1

can support a wide range of input and output

voltages. The input bias voltage of AOZ1977-1 is

from 8V to 30V.

•

8V to 30V input bias voltage

Up to 16V driving capability at GATE pin and

DPWM pin.

•

Disconnect control pin for PWM dimming or fault

conditions.

•

Bi-directional Clock synchronization

500mV feedback regulation

Feedback short protection

8 bit PWM dimming resolution

Cycle-by-cycle current limit

Output over-voltage protection

LED short and open protection

Thermal shutdown protection

SO-16 package

The AOZ1977-1 has multiple features to protect the

regulator under fault conditions. A control pin can

disable an external switch to disconnect the LEDs

current path from the output in PWM dimming or

under catastrophic failure conditions. Cycle-by-cycle

current protection limits the peak inductor current.

Thermal shutdown provides another level of

protection.

Low feedback voltage (500mV) helps reduce power

loss.

Applications

The AOZ1977-1 features sync function to allow for

synchronization with external clock or multiple

AOZ1977-1.

•

LCD TV LED backlight

LED monitor

The AOZ1977-1 is available in a standard SO-16

package and operates over the temperature range of

-40°C to +85°.

General LED lighting

Typical Application

www.aosmd.com

Page 1 of 16

Rev. 1.0 November 2011

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