REFACDC027
REFACDC027 - Reference Design
Isolation Fly-back Converter PWM method Output 48 W 12 V
The BM2P016T-EVK-003 evaluation board outputs a 12V voltage from an input of 90Vac to 264Vac. The output current provides up to 4.0A. The BM2P016T PWM type DC / DC converter IC with 650V MOSFET is used.
- The BM2P016T contributes to low power consumption by incorporating a 650V withstand voltage startup circuit.
- Using current mode control, cycle-by-cycle current limiting provides excellent performance in bandwidth and transient response.
- The switching frequency is fixed at 65kHz. At light loads, frequency reduction achieves high efficiency.
- Built-in frequency hopping function contributes to low EMI. The low on-resistance 1.4Ω · 650V withstand voltage MOSFET is built in, contributing to low power consumption and easy design.
- The optimized EMI design complies with CISPR 22 Class B for noise terminal voltage / radiation emission testing.
Design Resources
- BM2P016T-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 | Size | Operating Temperature | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BM2P016T-EVK-003 | 90 to 264Vac | 47 to 63Hz | 12V(Typ.) | 48W Iout=4A | 0 to 4A *1 | 135mW Iout=0A | 0.862 | 100mVpp *2 | 55mmx105mm | -10 to 65deg.C |
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 |
|---|---|---|
| BM2P016T-EVK-003 | CoreStaff Co., Ltd. | 2 |
| DigiKey | 2 | |
| Mouser Electronics Inc. | 2 | |
| Ameya Holding Limited | 1 | |
| Inquiry | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BM2P016T-EVK-003 | BM2P016T | AC/DC Converters ICs | - | Recommended | - | - | ||||||
| BM2P016T-EVK-003 | RFN1LAM7S | Fast Recovery Diodes | - | Recommended | - | - | - | - | - | |||
| BM2P016T-EVK-003 | RRE02VSM4S | Standard Rectifier Diodes | - | Recommended | - | - | - | - | - | |||
| BM2P016T-EVK-003 | RB218T100NZ | Schottky Barrier Diodes | - | Active | - | - | - | Solution Simulator |