AS1113-BQFT

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Introduction: AS1113-BQFT is a PMIC-LED driver developed by AS1113. It is a 5-channel constant voltage LED driver, mainly applied in the fields of automotive lighting, interior editing, e-book’s background lighting, TV backlighting and other similar applications.Application Field:AS1113-BQFT can be widely used in automotive lighting, interior editing, e-book’s background lighting, TV backlighting and other similar applications. It offers excellent current accuracy, fast and realiable digital control with a wide range of input voltage, and high-speed switching capabilities. It has very low on resistance and excellent efficiency, which is critical to the success of these applications.Features: - Fast and reliable digital control;- Suites for driving high-power LED arrays;- Low output voltage spread and supply current ripple;- Low on resistance;- Low standby power consumption;- Programmable PWM dimming frequency;- Current accuracy ±4%;- Current sense resistor compensation;- 0.25A current drive capability;- 5V or 12V analog input voltage;- 0 - 100% PWM dimming.Working Principle: The AS1113-BQFT uses a step-down DC-DC converter to convert the input voltage into a desired output voltage. The input voltage is adjusted by a control circuit and then converted into constant-voltage output by the DC-DC converter. The output voltage is limited by the maximum output current and the on resistance of the MOSFET.The AS1113-BQFT provides constant-voltage performance, high accuracy, fast switching and digital control. The PWM dimming frequency can be programmed and controlled by the external clock source. The current sense resistor is used to compensate for possible current fluctuations. The output voltage is kept constant by using a feedback loop between the control circuit and the DC-DC converter. It also features low on resistance and low standby power consumption.Conclusion:AS1113-BQFT is a P WM IC-LED driver used for automotive lighting, interior editing, e-book’s background lighting, TV backlighting and other similar applications. It offers excellent current accuracy, fast and reliable digital control with a wide range of input voltage, and high-speed switching capabilities. With the features of low on resistance and low standby power consumption, AS1113-BQFT is sure to be a great success in these application fields.

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