BD1HD500FVM-CTR

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Power distribution switches are circuits that allow the distribution of power sources to multiple loads to be controlled. Load drivers are circuits for controlling the flow of current from a power source to a load. The BD1HD500FVM-CTR is a programmable power management integrated circuit (PMIC) switch, load driver, and controller for automotive lighting applications. It allows for the parallel connection of multiple LED strings, and is built around a currentBoost regulator capable of 32V input voltage, up to 500mA output current, up to 600 nsec dimming time, and slew rate control.

BD1HD500FVM-CTR Application Field

The BD1HD500FVM-CTR is designed for automotive lighting applications. It can be used to drive headlight or taillight LEDs. It is also suitable for any application that requires dimming and/or pedestal control. It can also be used to drive LEDs in sequential amber turn signals and interior high-beam indicators.

BD1HD500FVM-CTR Working Principle

BD1HD500FVM-CTR is a multi-channel power management integrated circuit that combines a wide input voltage range of 12V to 32V with a current-mode boost regulator, PWM dimming control, chopper-style surge current protection, and two channels of pedestal control. It is built around a 4-channel currentBoost® regulator. The currentBoost® regulator supports full range dimming from 0% to 100%, with 600 ns dimming time resolution. The output current can be programmed from 0mA to 500mA per channel.

In addition, the BD1HD500FVM-CTR also incorporates protection features, such as over-voltage, over-current, and short circuit protection. It also has an integrated temperature sense mode that disables the output current in case of temperature overload. The BD1HD500FVM-CTR also has 2 channels of chopper-style surge current protection, allowing it to operate reliably at high temperatures. Finally, the device also offers 3 levels of fault status reporting.

Conclusion

In conclusion, the BD1HD500FVM-CTR is a versatile PMIC switch, load driver, and controller for automotive lighting applications. It is built around a currentBoost regulator capable of 32V input voltage, up to 500mA output current, up to 600 nsec dimming time, and slew rate control. It also offers protection features, such as over-voltage, over-current, and short circuit protection. It is suitable for any application that requires dimming and/or pedestal control.

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