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ROHM BM2PAB1Y-Z | Demoboard BM2PAB1Y-EVK-003
AC/DC Converter Non-Isolated Buck Converter PWM type 8 W(20V 0.4A)
Overview
| Topology | Buck Converter |
| Input voltage | 90-264 V |
| Switching frequency | 25-65 kHz |
| Output 1 | 21 V / 0.4 A |
| IC revision | 001 |
Description
The PWM type DC/DC converter for AC/DC provides an optimum system for all products that include an electrical outlet.It enables simpler design of a high effective converter specializing in non-isolation.By a built-in startup circuit that tolerates 650V, this IC contributes to low power consumption. A current detection resistor as internal device realizes the small power supply designs. Since a current mode control is utilized, the current can be restricted in each cycle and an excellent performance is demonstrated in the bandwidth and transient response.The switching frequency is fixed to 25 kHz / 65 kHz. A frequency hopping function is also on chip, and it contributes to low EMI.In addition, a built-in super junction MOSFET with 650 V withstand voltage makes the design easy.
Features
- PWM Current Mode Method
- Frequency Hopping Function
- Burst Operation at Light Load
- Built-in 650 V Startup Circuit
- Built-in 650 V Super Junction MOSFET
- VCC UVLO (Under Voltage Lockout)
- VCC OVP (Over Voltage Protection)
- Over Current Detection Function per Cycle
- Soft Start Function
- Sleep Mode
Typical applications
- Household Appliances such as Washing Machines, Air-conditioners, and Cleaners
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR(V (AC)) | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | L(mm) | W(mm) | H(mm) | Packaging | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Ø D(mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTXX Film Capacitors, Across the mains, 470 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance470 nF | Rated Voltage310 V (AC) | Safety ClassX2 | Rate of Voltage Rise220 V/µs | Dissipation Factor0.1 % | Insulation Resistance21.28 GΩ | Pitch15 mm | Length18 mm | Width8 mm | Height14 mm | PackagingCarton | – | – | – | – | – | ||||
 | WCAP-ATUL Aluminum Electrolytic Capacitors, –, 330 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATUL Aluminum Electrolytic Capacitors | Capacitance330 µF | Rated Voltage35 V (AC) | – | – | – | – | Pitch5 mm | Length16 mm | – | – | PackagingAmmopack | Endurance 7000 | Ripple Current1380 mA | Leakage Current115.5 µA | Dissipation Factor12 % | Diameter10 mm |