BD7844AEFV-E2

The BD7844AEFV-E2 is a LED driver power management integrated circuit (PMIC) that is designed for automotive lighting applications. It is a constant current LED driver that uses a buck-boost converter topology to provide a highly stable and low noise LED drive current. This LED driver is capable of providing high accuracy LED current regulation and features a wide operating temperature range of -40°C to +125°C.The BD7844AEFV-E2 is designed to efficiently operate two strings of LEDs in many different applications such as headlamp, tail lamp, interior lighting and instrument clusters. This LED driver features an internal PWM dimming and an adjustable constant current output. It can be controlled through an external PWM signal or a logic-level input.The BD7844AEFV-E2 LED driver has several safety and protection features in order to protect the LEDs. These include overvoltage protection, overtemperature protection and current sense protection. It also has an integrated temperature sensor to precisely monitor the LED junction temperature and prevent over temperature conditions.The BD7844AEFV-E2 operates in a buck-boost converter topology which allows the constant current output to be flexibly set and regulated. This allows the driver to accurately regulate the LED current over a wide range of input voltages, from 4V to 24V.The BD7844AEFV-E2 features an advanced power saving design which provides an optimized efficiency of over 94%, even in high temperature operating conditions. This makes it an ideal choice for automotive lighting applications where low power dissipation is a critical design requirement.The BD7844AEFV-E2 also features programmable switching frequency, enabling the user to achieve the best possible performance in terms of efficiency, noise and EMI. It also features a sleep mode, which enables the user to further reduce system power consumption when the LEDs are not in use.The BD7844AEFV-E2 is a versatile LED driver solution for automotive lighting applications, offering high accuracy current regulation, flexibility and safety features. This makes it an ideal choice for driving LEDs in automotive applications such as headlamps, interior lighting and instrument clusters.

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