15815503065
SGM37604A 白光LED驱动器IC
品牌1: SGM/圣邦微
效率: 90%
工作频率: 1.2MHz
封装: WLCSP-1.78×1.36-12B and TDFN-3×3-12L
报价: 0.50元/个
最小起订: 3000 个
库存: 9999990000 个
发货期限: 自买家付款之日起 2 天内发货
有效期至: 长期有效
发布时间: 2023-03-16 13:33
浏览次数: 101
手机号: 15815503065
电话: 0755-83538626
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详细信息

GENERAL DEscriptION

The SGM37604A is a high efficiency 4-string white LED driver with a 1.2MHz boost converter. The supply voltage operates from 3V to 24V. The SGM37604A is capable of driving up to 8 LEDs in series for 40mA maximum LED current per string while achieving high conversion efficiency. An adaptively current-regulated method allows different LED string voltages while LED current remains in regulation. The LED current is programmed through an I2C interface or a PWM signal input. These features make it optimized for compact solutions and ideal for LCD display backlighting.

The SGM37604A is available in Green WLCSP-1.78×1.36-12B and TDFN-3×3-12L packages. It operates over the -40 to +85 temperature range.

FEATURES

  • 12-Bit Resolution for Dimming Control

  • Up to 90% Boost Efficiency

  • Switching Frequency: 1.2MHz

  • Support 1 to 4 LED Strings in Parallel at Maximum 29.5V Output

  • 11% LED Current Matching across Process, Voltage and Temperature at ILED = 12.21μA

  • 1% LED Current Matching across Process, Voltage and Temperature at ILED = 25mA

  • 11% LED Current Accuracy across Process, Voltage and Temperature at ILED = 12.21μA

  • 3% LED Current Accuracy across Process, Voltage and Temperature at ILED = 25mA

  • PWM Dimming Interface

  • Programmable I2C Interface

  • Phase Shift Function

  • Hybrid PWM + Current Dimming for Higher LED Driver Optical Efficiency

  • Low EMI by Conducting Ringing Cancelling

  • Protection Features

    Over-Voltage Protection

    Over-Current Protection

    Thermal Shutdown

APPLICATIONS

Power Source for Smart Phone and Tablet Backlighting


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