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| 品牌 | 华润矽威 | 型号 | PT4412 |
| 批号 | 10+ | 封装 | SOT23-6 |
| 营销方式 | 现货 | 产品性质 | 热销 |
| 处理信号 | 模拟信号 | 制作工艺 | 半导体集成 |
| 导电类型 | 单极型 | 集成程度 | 小规模 |
| 工作温度 | -40~125（℃） | 类型 | 驱动IC |
GENERAL DESCRIPTION
The PT4412 is a series of White/Blue LED drivers.
There is no external component needed, which helps to
lower the system cost significantly. The circuit is
optimized to provide over 90% efficiency. The PT4412
is ideal to drive white LEDs used for Li-ion battery
powered LCD displays. The LED brightness can be
adjusted in real time through a PWM signal at the EN
pin. The target end applications are small color LCD
displays in mobile phones, smart phone, digital cameras,
PDA etc. PT4412 is available in SOT23-6 package.
FEATURES
z No external component required
z Fixed 20mA and 15mA sinking current
z Individual current sink circuit for each output to
prevent short/open circuit on LEDs
z PTC LED current for luminosity compensation
z 4 channels available
z PWM tuned LED brightness through EN pin
z Supply voltage range 2.7V~6.0V
z 0.1uA standby current
APPLICATIONS
z Small Size Color LCD Backlights
z Mobile Phone, Smart Phone, PDA etc. Backlights