Datasheet > AMLDL-RZ

AMLDL-RZ

更新时间： 2022-04-19 10:36:39

品牌	Logo	应用领域
AIMTEC		驱动器
页数	文件大小	规格书
17页	1647K
描述
Up to 700mA \| LED Driver

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数据手册
替代型号

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AMLDL-RZ 数据手册

Series AMLDL-RZ

Up to 700mA | LED Driver

Output Current Adjustment by PWM Control:

Driving VADJ Directly

A Pulse Width Modulated (PWM) signal with a duty cycle of DPWM can be applied directly to VADJ pin as shown below.

The output current is given by:

x DPWM [for 0.01<DPWM<1]

Ioutnom = Iout

+Vout

-Vout

1^stLED

PWM

VADJ

AMLDL-RZ

-Vin

1.25V

Last LED

GND

Driving VADJ Via Open Collector Transistor

The VADJ can also be driven via an open collector transistor as shown below.

The diode and resistor serve to suppress any possible high amplitude negative voltage spikes to the VADJ input resulting

from the collector to emitter capacitance of the transistor. Any negative voltage spikes will cause errors in output current

and/or unstable driver operation.

+Vout

1^stLED

VADJ

AMLDL-RZ

-Vin

PWM

1.25V

-Vout

10K

Last LED

GND

Driving the VADJ from a Microcontroller

The VADJ can be driven from an open drain output of a microcontroller as shown below. The diode and resistor serve to

suppress any possible high amplitude negative voltage spikes to the VADJ input resulting from the drain to source

capacitance of the FET. Any negative voltage spikes will cause errors in output current and/or unstable driver operation.

+Vout

1^stLED

VADJ

MCU

AMLDL-RZ

-Vout

10K

-Vin

Last LED

GND

www.aimtec.com

F 051e R12.E

Tel: +1 514 620 2722

5 of 17

Toll free: + 1 888 9 AIMTEC

(924 6832)

North America only

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STM32F103C8T6 替代型号

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