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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. |
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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)
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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 |
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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
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Product specifications
| Maximum Permissible Surface Temperature |
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Ta=25ºC |
| Parameter |
Symbol |
Limits |
Unit |
Conditions |
| Output Power |
Po |
24 |
W |
DC248V to DC372V |
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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
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| Operating Temperature Range |
Topr |
-25 to +80 |
ºC |
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| Storage Temperature Range |
Tstg |
-30 to +105 |
ºC |
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