升压型 LED 定电流驱动控制器

RT9293 是高频、异步的 Boost 转换器，内部集成了支持多达10只 WLED 串联的背光应用和 OLED 供电的 MOSFET ，还有内置的软启动功能以消除冲击电流。IC 工作在 1MHz 的频率下，容许使用小型的元器件，EMI 问题也得到了简化。在应用安全方面，RT9293A 提供了 50V 的过压保护，RT9293B 提供了50V/20V的过压保护，容许根据需要选择合适的小型输出电容和尽可能低的耐压等级。提供给 LED 的电流是由外部电流检测电阻 RSET 所确定的。 RT9293 的可选封装有 TSOT-23-6 和 WDFN-8L 2x2 ，为取得最佳的 PCB 空间和总体拥有 •VIN 输入电压范围： 2.5V~5.5V\n•外部组件极少\n•内置补偿电路\n•过压保护\n• 小型的 TSOT-23-6 封装和8引脚 WDFN 封装\n•符合 RoHS 规范，不含卤素;

Richtek

立锜科技

48K ROM HCMOS MCUs WITH ON SCREEN DISPLAY AND A/D CONVERTER

GENERAL DESCRIPTION The ST9293 is a ROM member of the ST9 family of microcontrollers, completely developed and produced by SGS-THOMSON Microelectronics using a proprietary n-well HCMOS process. The ROM parts are fully compatible with their EPROM versions, which may be used for the prototyping an

文件：66.1 Kbytes 页数：4 Pages

STMICROELECTRONICS

意法半导体

Σ-∆ Modulation System DA Converter with Analog Filter

TC9293F, TC9293FN, TC9293N are a 2’nd order Σ-∆ modulation system 1 bit DA converter with a built-in 8 times over sampling digital filter and analog filter developing for digital audio equipment. As this IC is small package, SSOP24 (1.00 mm, 0.65 mm) and SDIP24, and the analog filter has been

文件：366.54 Kbytes 页数：17 Pages

TOSHIBA

东芝

Σ-∆ Modulation System DA Converter with Analog Filter

TC9293F, TC9293FN, TC9293N are a 2’nd order Σ-∆ modulation system 1 bit DA converter with a built-in 8 times over sampling digital filter and analog filter developing for digital audio equipment. As this IC is small package, SSOP24 (1.00 mm, 0.65 mm) and SDIP24, and the analog filter has been

文件：366.54 Kbytes 页数：17 Pages

TOSHIBA

东芝