厂商：Freescale
类别：16位单片机
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：
类别：Qorivva微控制器
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封装管脚图产品描述T he SGM3127 low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs. It is optimized for low power keypad and portable backlighting applications. The SGM3127 uses an internal resistor to set the bias current for four LEDs, which are matched to ±5%. The SGM3127's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency. The SGM3127 requires only a 50mV dropout voltage at a 30mA load on each output to match the LED brightness. The SGM3127 is available in Green SOT-23-6 package. It operates over an ambient temperature range of -40°C to +85°C.产品特性Support up to 4 LEDsLow 50mV Dropout at 30mALess than ± 5% LED Current MatchingSimple LED Brightness ControlLow Shutdown Current2.5V to 5.5V Supply Voltage RangeThermal Shutdown ProtectionOperating Temperature Range: -40 °C to +85 °CAvailable in Green SOT-23-6 Package