DESCRIPTION
Except power supply function, the VDD pin of SSMG501 is output enable (OE) also, and can be used in digital PWM controlled circuit to achieve more precise current adjusting in gray level applications. This application makes SSMG501 very easy to be used. Just like a diode, when this diode is inserted in LED series, the current in circuit is regulated. In high supply voltage and low LED load voltage application, two or more single channel SSMG501 can be connected in series to share redundant high voltage. the extra redundant voltage can be share by each SSMG501 by a reasonable mechanism. This special capability let SSMG501 very suit for the usage of wide range power supply that many liner type LED drivers cannot work. SOT-23 FEATURES
18mA~30mA constant current regulator Self power structure, no extra power supply is needed 0.4V~17V output voltage 2µS/2µS current rising/falling time Cascade-able for higher voltage application No external current setting resistor is needed 1.6V...