Photo Flash Led Driver

SSL3250A, Photo Flash TX-Masking, 0.5 A load current, soft-start Application guidelines for a photo Flash driver for mobile applications, including an application setup. The SSL3250A is an asynchronous boost photo Flash dual LED Driver for mobile applications. The wide input voltage range and the large maximum output current at a wide output voltage range, insure a lot of implementation possibilities. The high efficiency and soft-start will result in long battery life and low power strain. Many features like overvoltage, overtemperature and feedback shorted protection, undervoltage lockout and time-out functions, protect the battery and LED from overloading, and result in trouble-free operation of the whole mobile application. 2. Application Information 2.1 General description The SSL3250A has two general control modes: Direct control and I 2C control. In Direct control mode the IC is designed to be directly controlled by the application. The I 2C control is designed to change the Timing and current settings of the SSL3250A although it CAN also be used to Switch the driver to Flash mode, Torch mode or Indicator mode. In Direct control mode, EN1 and EN2 are used. In I 2C control mode, SCL, SDA and STRB are used. In a typical application only one control mode CAN be used.
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Typical application diagram of SSL3250A using I 2C interface only
Typical application diagram of SSL3250A using I
2C interface only



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