BD6164GUT-E2

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The BD6164GUT-E2 is a member of the NCP3386 series of PMIC–LED Drivers supplied by Rohm Semiconductor. It is used to help meet the needs of automotive lighting, backlighting and small displays applications. The device combines a multi-channel LED driver, overvoltage protection and a separator circuit in a single package, making it ideal for automotive LED implementations.

The BD6164GUT-E2 contains ten PMOS outputs which offer a low output resistor for fast switching and excellent efficiency. The device can be used to drive both low and high current LEDs; the adjustable current allows for a wide range of LED brightness control. It also has external shunt resistors for easy current control. The BD6164GUT-E2 also offers several protection features such as a thermal shutdown circuit and an overvoltage detection circuit to protect the LEDs from damage.

The BD6164GUT-E2 features a controlled transition control circuit which minimizes glitches caused by fast switching. It also features a programmable soft start circuit to reduce inrush current and protect the power system. The BD6164GUT-E2 is housed in a small LFCSP package and is rated for 14V operation.

By using the BD6164GUT-E2’s overvoltage protection and separator circuits, automotive lighting and backlighting applications can be made safer and more efficient. The device is well-suited for low-pressure LED modules because it efficiently utilizes the LED current. The BD6164GUT-E2 allows for the selection of either a single LED or an LED array to be used, thereby eliminating the need for multiple LED drivers.

The BD6164GUT-E2’s operating principle is based on its adjustable current capability. This consists of an N-MOSFET which is connected between the VCC pin and the output pin, and a resistor connected between the output pin and the N-MOSFET’s gate pin. When the voltage applied to the VCC pin is higher than the LED’s anode voltage, a current is generated through the N-MOSFET which is proportional to the resistor’s value. This current is then used to drive the LED, and the output current and LED brightness can be adjusted by varying the resistor’s value.

In summary, the BD6164GUT-E2 is an ideal PMIC–LED driver for automotive lighting, backlighting and small display applications. It provides multiple PMOS outputs for enhancing efficiency, adjustable current for high and low current LEDs, and several protection features such as a thermal shutdown circuit and an overvoltage detection circuit. With its compact package size, low-pressure LED module capability, and high voltage tolerance, the BD6164GUT-E2 offers an efficient and safe solution for automotive applications.

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