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BP5873 isolated high power LED driver module

ROHM LED driver modules integrate all required functions for LED lighting

Overview

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%.

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.

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.

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.

Electrical Characteristics

*Unless otherwise specified, Vi=AC85 to 264VAVo=45.6VATa=25ºC

Parameter	Symbol	Standard			Unit	Remarks
Parameter	Symbol	Min.	Typ.	Max.	Unit	Remarks
Input Voltage Range	Vi	85	100	264	VAC	50/60Hz
Input Power Factor		0.95	0.99	-	-	Vi=AC100V
Input Power Factor		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

Lineup

Part No.	Input Voltage [ V ]	Output Voltage [ V ]	Output Current [ mA ]	External Dimensions [ mm ]	Features
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