BD18378EFV-ME2 Integrated Circuits (ICs)

Voltage - Output:	8V
Supplier Device Package:	28-HTSSOP-B
Package / Case:	28-VSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C (TA)
Applications:	Automotive
Dimming:	PWM
Frequency:	1.25MHz
Current - Output / Channel:	50mA
Series:	Automotive, AEC-Q100
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	3V
Number of Outputs:	12
Internal Switch(s):	Yes
Topology:	Shift Register
Type:	Linear
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC - LED Drivers

BD18378EFV-ME2 is an LED driver from ROHM Semiconductor that devotes to low power consumption and efficiency enhancement. It is a device to provide an electric current to an LED (light-emitting diode). This enables it to act as a constant current source, thus maintaining efficiency of the LED even when the voltage is unequal. Used in a variety of applications such as illumination, street lighting and various decors, the BD18378EFV-ME2 is specifically designed to provide energy efficient lighting.

Overview

The BD18378EFV-ME2 is a P-channel enhancement mode MOSFET gate-drive type high brightness LED driver with a current sensing circuit and digital PWM dimming control. It\'s able to control the current of up to 8 LEDs with slew rate control for linear current settings and smooth lighting. The device can output 2 separate current sources with its own or a shared PWM dimming control. The BD18378EFV-ME2 utilizes an open drain output architecture. It has an input voltage range from 6V to 20V, an output voltage from 6.5V to 20V, an output power of up to 800mV and a maximum current of 1A. It is available in small SOP-8 and U-DFN16 packages for easy integration and transports with small dimensions.

Applications

The BD18378EFV-ME2 is typically used in applications that require energy efficiency while providing a consistent level of illumination, such as street lights, backlighting and decorative lighting. Its capability to adjust the output current with a certain degree of stability enables it to provide a high efficiency while keeping the LED longevity high. It can be also used in automotive lighting applications as its wide input voltage range and maximum current both offer flexible options for designers.

Working Principle

In operation, the BD18378EFV-ME2 is driven by the gate-drive circuit which is connected to the top power FET. This circuit acts as an amplifier; when PWM signal is given it causes changes in the gate voltage. As a result, the gate-drive circuit supplies power to the bottom power FET, and output current is given from the drain terminal. The BD18378EFV-ME2 contains a current-sense circuit which adjusts the output current as the voltage on the sense terminal varies. As the voltage increase, the amount of current decreases, thus allowing for a highly efficient and precise control of the output current.

Conclusion

The BD18378EFV-ME2 offers unique advantages to its users such as high energy efficiency, digital PWM control and high output power while maintaining a low power consumption. Used in applications such as street lights, backlighting and decorative lighting, the BD18378EFV-ME2 is perfectly responded to today\'s need for energy efficient lighting. Its open-drain output architecture, wide voltage range and high maximum current all make it an ideal device for a variety of applications. This device is specifically designed to provide energy efficient lighting, giving a steady current output that stands against uneven voltage levels.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description