BP5873 isolated high power LED driver module

Overview | Key Feature 1 | Key Feature 2 | Key Feature 3 | Key Feature 4 | Electrical Characteristics |
External Dimensions | Lineup | Applications

ROHM LED driver modules integrate all required functions for LED lighting


ROHM's isolated high power LED driver module (BP5873) meets the needs of LED lighting equipment by integrating all required functions into one package.
The single converter design results in higher efficiency (85%) than conventional two-converter systems. Additional features include high frequency operation, a thin form factor, color (light temperature) switching, dual outputs, and universal input, making it easy to add increased functionality to LED lighting equipment.

Key Feature 1 : Single converter system improves efficiency

The single converter system integrates an AC/DC converter with PFC circuit, reducing loss considerably compared with dual-converter methods, improving efficiency up to 85%.

Block Diagram

Key Feature 2 : PFC circuit built in for a power factor of 0.99

The power factor is greatly affected by resistance loss through the tranformer windings and supply lines. BP5873 features an active filter method with built-in PFC circuit, resulting in a power factor of 0.99. This not only enables high frequency operation, but ensures compliance with the IEC61000-3-2 standard.

Input Voltage - Current Waveforms

Key Feature 3 : Thinner form factor approaching that of the LED units themselves

One major advantage of LEDs compared with conventional lighting is that they have a thinner form factor. The BP5873 can drive a wide range of LED lighting devices and features a thickness of only 15mm - roughly 30% thinner than competitor models.

Thinner form factor approaching that of the LED units themselves.

Key Feature 4 : Change the color temperature via analog input

There is an increasing demand for changing the color temperature of the LED lighting device to suit the desired mood, similar to dimming. The BP5873 provides two outputs for connecting LEDs with different color temperatures, making it possible to change the lighting environment dramatically.

Change the color temperature via analog input

Electrical Characteristics

*Unless otherwise specified, Vi=AC85 to 264VAVo=45.6VATa=25ºC
Parameter Symbol Standard Unit Remarks
Min. Typ. Max.
Input Voltage Range Vi 85 100 264 VAC 50/60Hz
Input Power Factor   0.95 0.99 - - Vi=AC100V
0.90 0.95 - - Vi=AC200V
Output Voltage Range1,2 Vo1,2 35.0 45.0 55.0 V Io=270mA
Output Current1,2 Io1,2 256.5 270 283.5 mA -
Output Open Voltage Vopen - - 60 V Io=0mA

Parameter Definitions
Output Voltage Range: The range of output voltages available for constant current output.

External Dimensions

External Dimensions (mm)


Part No. Input
[ V ]
[ V ]
[ mA ]
[ mm ]
BP5870 AC80 to 264 30 to 45.6 150 to 2 Output /
300 to 1 Output
210.5 to 30.5 to 27.9 Built-in PFC circuit
Compatible with both 0.5W
and 1W LEDs
Universal input
BP5872 AC80 to 264 60 to 91.2 300 245.5 to 32.5 to 17.6 Built-in PFC circuit
Supports analog dimming
Universal input
BP5873 AC85 to 264 35 to 55 270 to 2 Output 230.5 to 45.5 to 15.9 Built-in PFC circuit
Supports analog dimming
Universal input
BP5875 AC80 to 264 60 to 91.2 300 65 to 130 to 19.2 No external circuit required
Analog dimming function built in
Universal input

☆ : Under Development


. Canopy lighting
. Fluorescent Lamp . Signage and more

Application Photo

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