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瑞萨电子提供丰富的 PWM 控制器产品组合,适用于需要隔离变压器的开关模式 DC/DC 和 AC/DC 电源,如离线 AC/DC 和 -48V 电信输入 DC/DC 转换器。 此系列控制器和转换器的产品组合均包含单端与双端隔离式 PWM 控制器以及零电压开关 (ZVS) 全桥控制器。
您可以参考以下表格,寻找最符合您隔离电源项目需求的产品:
拓扑结构特性 | 反激 | 正激(双开关) | 有源钳位正激 | 推拉 | 半桥 | 全桥 ZVS | 全桥(电信)硬开关 |
---|---|---|---|---|---|---|---|
推荐功率电平 | <150W | 120W~200W | 120- 400W | 100W~500W | 150W~500W | >400W | >400W |
效率 | 最低 ~70-80% | 中等 ~ 80-90% | 高 85~92% | 中等 ~ 85-93% | 高 ~ 95%+ | 高 ~ 95%+ | 高 ~ 95%+ |
推荐设备 | ISL884x ISL672x | ISL672x | ISL6726 | ISL6741 | ISL674x | ISL675x | ISL674x |
PFC 级 | ISL673x | ||||||
成本 | 最低 | 低 | 低 | 低 | 中 | 高 | 高 |
传输函数 = Vout/Vin | (Ns/Np)*D/(1-D) | (Ns/Np)*D | (Ns/Np)*D | 2*(Ns/Np)*D | (Ns/Np)*D | 2*(Ns/Np)*D | 2*(Ns/Np)*D |
高输入电压 | 有利于偏置电源 | 有利于 2 开关正激 | 有利 | 不推荐 | 有利 | 有利 | 有利 |
最大占空比 | < 100% | < 50%(带有源钳位时为 70%) | 70% | < 各 50% | < 各 50% | < 各 50% | < 各 50% |
Subcategory |
Temp. Range |
Pkg. Type |
Lead Count (#) |
Pkg. Dimensions (mm) |
Price (USD) | 1ku |
|
---|---|---|---|---|---|---|
器件号 | ||||||
灵活的单端电流模式 PWM 控制器 | Flyback & Forward Controllers | -40 to +105°C | SOICN, TSSOP | 16 | 5.0 x 4.4 x 0.00, 9.9 x 3.9 x 0.00 | 3.125 |
Flexible Single-ended Current Mode PWM Controller | Flyback & Forward Controllers | -40 to +105°C | QFN, TSSOP | 16 | 3.0 x 3.0 x 0.90, 5.0 x 4.4 x 0.00 | 3.125 |
Flexible Single Ended Current Mode PWM Controllers | Flyback & Forward Controllers | -40 to +105°C | QFN, SOICN, TSSOP | 16 | 3.0 x 3.0 x 0.90, 5.0 x 4.4 x 0.00, 9.9 x 3.9 x 0.00 | 2.489 |
有源钳位正激 PWM 控制器 | Flyback & Forward Controllers | -40 to +105°C | QSOP | 20 | 8.6 x 3.9 x 0.00 | 4.399 |
Flexible Double Ended Voltage and Current Mode PWM Controllers | Half-Bridge & Hard-Switched Full Bridge Controllers | -40 to +85°C | TSSOP | 16 | 5.0 x 4.4 x 0.00 | 3.627 |
Flexible Double-Ended Voltage-Mode PWM Controller with Voltage Feed Forward | Half-Bridge & Hard-Switched Full Bridge Controllers | -40 to +85°C | TSSOP | 16 | 5.0 x 4.4 x 0.00 | 3.804 |
Flexible Double Ended Voltage and Current Mode PWM Controllers | Flyback & Forward Controllers | -40 to +85°C | TSSOP | 16 | 5.0 x 4.4 x 0.00 | 2.46 |
Advanced Double-Ended PWM Controller with Synchronous Rectifier Control and Average Current Limit | Half-Bridge & Hard-Switched Full Bridge Controllers | -40 to +85°C | QSOP | 16 | 4.9 x 3.9 x 1.47 | |
Advanced Double-Ended PWM Controller | Half-Bridge & Hard-Switched Full Bridge Controllers | -40 to +105°C | QSOP | 16 | 4.9 x 3.9 x 1.47 | |
Intermediate Bus PWM Controller | Half-Bridge & Hard-Switched Full Bridge Controllers | -40 to +105°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 2.347 |
Improved Bridge Controller with Precision Dead Time Control | Half-Bridge & Hard-Switched Full Bridge Controllers | -40 to +105°C | MSOP | 10 | 3.0 x 3.0 x 0.85 | 2.46 |
ZVS Full-Bridge Current-Mode PWM with Adjustable Synchronous Rectifier Control | Zero Voltage Switching (ZVS) Full Bridge Controllers | -40 to +105°C | QSOP | 16 | 4.9 x 3.9 x 1.47 | 3.21 |
ZVS Full-Bridge PWM Controller | Zero Voltage Switching (ZVS) Full Bridge Controllers | -40 to +105°C | QSOP | 16 | 4.9 x 3.9 x 1.47 | 2.8 |
Improved Industry-Standard Single-Ended PWM Controller | Flyback & Forward Controllers | -40 to +85°C | DFN, MSOP, SOICN | 8 | 2.0 x 3.0 x 0.90, 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.725 |
Improved Industry-Standard Single-Ended PWM Controller | Flyback & Forward Controllers | -40 to +85°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.725 |
High Performance Industry Standard Single-Ended Current Mode PWM Controller | Flyback & Forward Controllers | -40 to +105°C, -55 to +125°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.725 |
High Performance Industry Standard Single-Ended Current Mode PWM Controller | Harsh Environment Isolated PWM Switching Controllers | -40 to +105°C, -55 to +125°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.725 |
High Performance Industry Standard Single-Ended Current Mode PWM Controller | Harsh Environment Isolated PWM Switching Controllers | -40 to +105°C, -55 to +125°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.725 |
Single-Ended Current Mode PWM Controller with 3% Current Limit and Military Temp Grade Option | Harsh Environment Isolated PWM Switching Controllers | -40 to +105°C, -55 to +125°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.725 |
High Performance Industry Standard Single-Ended Current Mode PWM Controller | Harsh Environment Isolated PWM Switching Controllers | -40 to +105°C, -55 to +125°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.725 |
High Performance Industry Standard Single-Ended Current Mode PWM Controller | Harsh Environment Isolated PWM Switching Controllers | -40 to +105°C, -55 to +125°C | MSOP, SOICN | 8 | 3.0 x 3.0 x 0.00, 4.9 x 3.9 x 0.00 | 1.525 |
10W AC/DC Digital Controller with <10mW Stand-by Power, Integrated Active Startup Circuit and Fast DLR | Flyback & Forward Controllers | SOIC-7 | 3.81 x 4.953 | |||
Configurable Light Load Operation Mode AC/DC Converter Enables Highly Efficient 30W Travel Adapters with Fast DLR | Flyback & Forward Controllers | SOT23-6L | 6 | |||
AC/DC Converter Configures Output Current in Real Time To Enable Smaller, Low Cost 30W Universal Input Adapters/Chargers | Flyback & Forward Controllers | SOT23-6L | 6 | |||
PrimAccurate™ Off-Line Digital PWM Controller in a SOT-23 Package | Flyback & Forward Controllers | SOT23-5L | 6 | |||
PrimAccurate™ Off-Line Digital PWM Controller in a SOT-23 Package | Flyback & Forward Controllers | SOT23-6L | 6 | |||
Low-Power Off-line Digital Green-Mode PWM Controller | Flyback & Forward Controllers | SOT23-5L | 5 | |||
Low-Power Off-line Digital PWM Controller | Flyback & Forward Controllers | SOIC-8 | 8 | |||
PrimAccurate™ Off-Line Digital PWM N-Channel MOSFET Controller | Flyback & Forward Controllers | SOIC-8 | 8 | |||
Low-Power Off-line Digital PWM Controller | Flyback & Forward Controllers | SOT23-6L | 6 | |||
PrimAccurate™ Off-Line Digital PWM Controller in a SOT-23 Package | Flyback & Forward Controllers | SOT23-6L | 6 | |||
30W AC/DC Off-Line Controller for Power Adapters | Flyback & Forward Controllers | SOIC-8 | 8 | |||
30W AC/DC Off-Line Controller for Power Adapters Offers Lower Output Ripple, Wider Input Voltage vs. iW1699 | Flyback & Forward Controllers | SOIC-8 | 8 | |||
PrimAccurate™ Zero No-Load Power Off-Line Digital PWM Controller in a SOT-23 Package | Flyback & Forward Controllers | SOT23-6L | 6 | |||
45W 数字 AC/DC PWM 控制器,具有可配置的轻负载工作模式,针对 9V+ 应用进行了优化 | Flyback & Forward Controllers | SOT23-6L | 6 | |||
PrimAccurate™ Off-Line Digital PWM Controller in a SOT-23 Package | Flyback & Forward Controllers | SOT23-5L | 6 | |||
PrimAccurate™ Digital Controller in a SOT-23 Package | Flyback & Forward Controllers | SOT23-6L | 6 | |||
PrimAccurate™ Digital Off-Line Controller with <50mW No-Load Power Consumption for Power Supplies up to 12W | Flyback & Forward Controllers | SOIC-8 | 8 | |||
PrimAccurate™ High Power, Off-Line Digital PWM N-Channel MOSFET Controller | Flyback & Forward Controllers | SOIC-8 | 8 | |||
45W AC/DC Off-Line Controller for Power Adapters | Flyback & Forward Controllers | SOIC-8 | 8 | |||
用于电源适配器的 45W AC/DC 离线控制器,与 iW1760 相比,输出纹波更低,输入电压更宽 | Flyback & Forward Controllers | SOIC-8 | 8 | |||
PrimAccurate™ High-Performance N-Channel MOSFET Digital PWM Controller for Networking Adapters | Flyback & Forward Controllers | SOIC-8 | 8 | |||
Digital PWM Controller Offers Peak Power Mode, Eliminating Need to Oversize Power Supply | Flyback & Forward Controllers | SOIC-8 | 8 | |||
Rapid Charge™ AC/DC Digital Controller | Flyback & Forward Controllers | SOIC-8 | 8 | 3.81 x 4.953 | ||
45W Rapid Charge™ AC/DC Digital Controller | Flyback & Forward Controllers | SOIC-8 | 8 | |||
RapidCharge™ AC/DC Digital Quasi-Resonant PWM Controller | Flyback & Forward Controllers | SOIC-8 | 8 | |||
Low BOM Cost 27W RapidCharge™ AC/DC Digital Controller with XM-Comm Technology | Flyback & Forward Controllers | SOIC-8 | 8 | |||
Reduced BOM Cost 27W Rapid Charge™ AC/DC Digital Controller | Flyback & Forward Controllers | SOIC-8 | 8 | |||
27W Low BOM Cost RapidCharge™ AC/DC Digital Controller with XM-Comm Technology in Small SOT23-6 | Flyback & Forward Controllers | SOT23-6L | 6 | |||
27W High Resolution RapidCharge™ AC/DC Digital Controller in Small SOT23-6 | Flyback & Forward Controllers | SOT23-6L | 6 |