高效PWM LED驱动器控制芯片

SD3390B是一个高效PWM LED驱动器控制芯片，它在输入电压DC/DC从10V~600V范围内能有效驱动高亮LED。该芯片能以高达300kHz的固定频率驱动外部MOSFET，其 频率外部电阻编程决定.为了保正亮度恒定并增强LED的可靠 性，外部高亮LED串采用恒流方式控制，而不是恒压控制. 其恒流值由外部取样电阻值决定，变化范围从几毫安到1安培。SD3390B使用了一个高压隔离连接工艺能经受高达600V的浪涌输入电压的冲击。对一个 LED 串的输出电流能被编程设定在零和它的最大值之间的任何值，它由输入到SD3390B的线性调光器的外部控制电压所控制。另外SD3390B也提供一个低频的PW

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UNIVERSAL HIGH BRIGHTNESS LED DRIVER

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MICROPOWER QUAD CMOS VOLTAGE COMPARATORS

Description The TS339 is a micropower CMOS quad voltage comparator with extremely low consumption of 9µA typ / comparator (20 times less than bipolar LM339). Similar performances are offered by the quad micropower comparator TS3704 with a push-pull CMOS output. Thus response times remain similar

文件：51.47 Kbytes 页数：6 Pages

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MICROPOWER QUAD CMOS VOLTAGE COMPARATORS

Description The TS339 is a micropower CMOS quad voltage comparator with extremely low consumption of 9µA typ / comparator (20 times less than bipolar LM339). Similar performances are offered by the quad micropower comparator TS3704 with a push-pull CMOS output. Thus response times remain similar

文件：51.47 Kbytes 页数：6 Pages

STMICROELECTRONICS

意法半导体

MICROPOWER QUAD CMOS VOLTAGE COMPARATORS

Description The TS339 is a micropower CMOS quad voltage comparator with extremely low consumption of 9µA typ / comparator (20 times less than bipolar LM339). Similar performances are offered by the quad micropower comparator TS3704 with a push-pull CMOS output. Thus response times remain similar

文件：51.47 Kbytes 页数：6 Pages

STMICROELECTRONICS

意法半导体