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AMLD-6050Z 参数 Datasheet PDF下载

AMLD-6050Z图片预览
型号: AMLD-6050Z
PDF下载: 下载PDF文件 查看货源
内容描述: 电流可达1000mA | LED驱动器 [Up to 1000mA | LED Driver]
分类和应用: 驱动器
文件页数/大小: 13 页 / 430 K
品牌: AIMTEC [ AIMTEC ]
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Series AMLD-Z  
Up to 1000mA | LED Driver  
Output Current Adjustment by PWM Control:  
Driving VADJ Directly  
A Pulse Width Modulation (PWM) signal with a duty cycle DPWM can be applied to the ADJ pin as shown below.  
The output current is given by:  
[if PWM frequency < 300Hz,  
for 0.1<DPWM<1]  
Iout ≈  
Ioutnom x DPWM  
+Vout  
1st LED  
1
PWM  
VADJ  
AMLD-Z  
-Vin  
1.25V  
0V  
-Vout  
Last LED  
1
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.  
www.aimtec.com  
F 051e R12.C  
Tel: +1 514 620 2722  
6 of 13  
Toll free: + 1 888 9 AIMTEC  
(924 6832)  
North America only