参数资料
型号: MIC2298-15YML TR
厂商: Micrel Inc
文件页数: 12/13页
文件大小: 0K
描述: IC LED DRIVER HIGH BRIGHT 12-MLF
标准包装: 1
恒定电流:
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 闪灯/白光
类型 - 次要: 高亮度 LED(HBLED),白色 LED
频率: 800kHz ~ 1.2MHz
电源电压: 2.5 V ~ 10 V
输出电压: 30V
安装类型: 表面贴装
封装/外壳: 12-VFDFN 裸露焊盘,12-MLF?
供应商设备封装: 12-MLF?(4x4)
包装: 标准包装
工作温度: -40°C ~ 125°C
产品目录页面: 1082 (CN2011-ZH PDF)
其它名称: 576-1657-6
Micrel, Inc.
LED Protection
The operation of the Power LED must be limited to short
pulses to prevent overheating. This is usually controlled
by the micro controller in a typical application. For further
protection, or where a micro controller is not used, the
temperature of the LED can be limited by the addition of
an NTC thermistor. The value should be > 100k ? at its
maximum safe temperature. This will then limit current
drive to the LED as temperature rises further and
prevents overheating. This thermistor should be
connected directly from BRT to GND. Reference Figure
10.
Figure 10. LED Thermal Protection
MIC2298
October 2007
12
M9999-101707-B
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