REFACDC025
REFACDC025 - Reference Design
Isolation Fly-back Converter PWM method Output 24W 12V
ROHM BM2P0161-EVK-003 is from wide input voltage (90Vac to 264Vac) to output 12V 2A max. Constant Voltage Reference board. It used to PWM method DC/DC Converter IC BM2P0161.
- BM2P0161 is including 650V High voltage power MOSFET and starter. The starter realize low Stand-by Power.
- Output voltage control method is used current mode regulation, therefore it can used cycle by cycle current limit. Quick response in dynamic load changing is achieved.
- Switching frequency is fixed 65kHz. Light load situation has frequency decrease function for higher efficiency.
- Switching frequency jitter function enables lower EMI operation.
- Various functions are included for safety, Soft start, Frequency Burst Mode, VCC OVP, Output OLP and thermal shut down.
Design Resources
- BM2P0161-EVK-003
- User's Guide
- Schematic
- BOM
- Layout (PDF)
Specifications
| Board Number | Input Voltage Range | Input Frequency | Output Voltage | Maximum Output Power | Output Current Range | Stand-by Power | Efficiency | Output Ripple Voltage | Operating Temperature | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BM2P0161-EVK-003 | 90 to 264Vac | 47 to 63Hz | 12V(Typ.) | 24W Iout=2A | 0 to 2A *1 | 73mW Iout=0A | 86% OutPut:24V 1.5A | 190mVpp BW=20MHz *2 | Ta=25℃ |
Remarks:
*1 Please adjust operating time, within any parts surface temperature under 105 °C
*2 Not include spike noise
*1 Please adjust operating time, within any parts surface temperature under 105 °C
*2 Not include spike noise
Distribution Inventory
| Board Number | Distributor | Quantity Available |
|---|---|---|
| BM2P0161-EVK-003 | Mouser Electronics Inc. | 3 |
| Chip One Stop, Inc. | 2 | |
| CoreStaff Co., Ltd. | 1 |
Key Components
| Board Number | Part Number | Product Category | Datasheet | Status | SPICE | LTspice® ? | Thermal Model | Symbol & Footprint | 3D STEP | Samacsys ECAD Library | Calc Tool | ROHM Solution Simulator |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BM2P0161-EVK-003 | BM2P0161-Z | AC/DC Converters ICs | - | Recommended | - | - | - | - | ||||
| BM2P0161-EVK-003 | RFN1LAM7S | Fast Recovery Diodes | - | Recommended | - | - | - | - | - | |||
| BM2P0161-EVK-003 | RRE02VSM4S | Standard Rectifier Diodes | - | Recommended | - | - | - | - | - | |||
| BM2P0161-EVK-003 | RB088BGE150 | Schottky Barrier Diodes | - | Recommended | - | - | - |