BP5870 isolated high power LED driver module | ROHM Semiconductor - ROHM Co., Ltd.

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BP5870 isolated high power LED driver module

0.99 power factor with built-in PFC circuit

Overview

ROHM now offers a high efficiency, high power factor isolated high power LED driver module. The BP5870 includes a PFC circuit and utilizes a pseudo-resonance method for direct AC connection for LED drive, facilitating LED lighting solutions. In addition, the unit meets market needs with a universal input and LED open/short protection circuit.

Key Feature 1 : PFC circuit built in for a power factor of 0.99

Power factor is heavily influenced by the resistance loss through the power supply and transformer lines. The BP5870 features an active filter method with integrated PFC circuit, resulting in a power factor of 0.99. This ensures compatibility with harmonics as well as compliance with IEC61000-3-2.

Key Feature 2 : Direct AC connection simplifies LED drive

Developing LED lighting involves a number of considerations, including power supply/housing design and LED layout. The BP5870 integrates an AC/DC converter, PFC circuit, and DC/DC converter, simplifying power supply and thermal designs along with circuit pattern.

Key Feature 3 : Pseudo-resonance method results in 83% efficiency

BP5870 utilizes a low-noise, high efficiency pseudo-resonance switching method that minimizes switching loss across the switching MOSFET for 83% efficiency.

Switching MOSFET Voltage - Current Waveforms

Electrical Characteristics

*Unless otherwise specified, Vi=AC80 to 264VAVo=45.6VATa=25ºC

Parameter	Symbol	Standard			Unit	Remarks
Parameter	Symbol	Min.	Typ.	Max.	Unit	Remarks
Input Voltage Range	Vi	80	100	264	VAC	50 / 60Hz
Input Power Factor		0.90	0.95	-	-	i=AC100V
Output Voltage Range1,2	Vo1,2	30	-	45.6	V	Io1=150mA,Io2=150mA
Output Current1,2	Io1,2	142.5	150	157.5	mA	-
Output Open Voltage	Vopen	-	-	55.0	V	Io1=0mA,Io2=0mA

Parameter Definitions
Output Voltage Range: The range of output voltages available for constant current output. Please ensure that the value never exceeds this range even momentarily.

External Dimensions

Lineup

Isolated High Power Modules

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