Isolated AC/DC Converter | New product new technology

Overview | Features | Applications | Product specifications

Overview

BP5729 is a switching power module consisting of a quasi-resonant RCC-type isolated AC/DC converter control module and a built-in power MOSFET, secondary output voltage detector circuit and photocoupler. Its output voltage can be set to any value between 3.3 and 24 V from an externally mounted resistor. Its maximum power output is 24 W (for an input voltage between 248 and 372 VDC, or 12 W for an input voltage between 120 and 248 VDC). It comes with built-in overvoltage and overcurrent protection circuits. Its few externally mounted parts make power configuration simple, making it ideal for use in large household electrical appliances.

Features

Quasi-resonant RCC-type isolated AC/DC converter control module achieves low noise (enables zero switching) and high efficiency.
Built-in power MOSFET (900 V) creates high reliability.
Input voltage range of 120 to 405 VDC (equivalent to 85 to 286 VAC) supports all voltages in use around the world.
Supports output voltages of 3.3 to 24 V.
Built-in photocoupler
Loss reduction during low loads (uses intermittent oscillation method)
Built-in overcurrent (pulse-by-pulse) protection circuit
Built-in overvoltage output protection circuit
Built-in low-voltage malfunction prevention circuit (operates at Vcc voltage of about 11 V)

Pb Free/Rohs Logo

The terminals of all ROHM ICs, discrete semiconductors, and passive components are lead-free and comply with the RoHS directive, ensuring worry-free use throughout the world. Applicable directives: WEEE*1, RoHS*2

*1: WEEE - Waste Electrical and Electronic Equipment *2: RoHS - Restriction on the use of certain Hazardous Substances in electrical and electronic equipment

Applications

Common household electrical appliances such as air conditioners, refrigerators, washing machines and microwave ovens
Battery chargers for cell phones, cordless phones and other mobile products
More compact power transformers and switching power supplies

Product specifications

Maximum Permissible Surface Temperature

Ta=25ºC

Parameter	Symbol	Limits	Unit	Conditions
Output Power	Po	24	W	DC248V to DC372V
		12	W	DC120V to DC372V
Isolation Voltage	Vl	2.5	kv	1s (Between 1st and 2nd stages)
Maximum Permissible Surface Temperature	Tcmax	105	ºC	Ambient temperature + Module Temperature≦Tcmax
Operating Temperature Range	Topr	-25 to +80	ºC
Storage Temperature Range	Tstg	-30 to +105	ºC