LT4320 / LT4320-1 - 理想二极管桥控制器
LT®4320 / LT4320-1 是理想二极管桥控制器，可驱动 4 个 N 沟道 MOSFET，支持从 DC 至 600Hz (典型值) 的电压整流。通过最大限度地增加可用电压并降低功耗 (见热录像仪比较)，该理想二极管桥控制器简化了电源设计并降低了电源成本，尤其是在低电压应用中。
另外，理想二极管桥还消除了热设计问题和昂贵的散热器，并极大地缩减了 PC 板面积。LT4320 的内部充电泵支持一种全 NMOS 设计，从而免除了体积更大且更加昂贵的 PMOS 开关。如果电源发生故障或短路，则快速关断以最大限度地抑制反向电流瞬变。
LT4320 设计用于 DC 至 60Hz (典型值) 电压整流，而 LT4320-1 则专为 DC 至 600Hz (典型值) 电压整流而设计。视 MOSFET 尺寸和工作负载电流的不同，可以执行更高频率的运作。
特点
典型应用  | 应用
封装信息   |
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
|---|---|---|---|---|
| LT4320HDD-1#PBF | 3x3 DFN-8 | H | $5.36 | $3.75 |
| LT4320HDD-1#TRPBF | 3x3 DFN-8 | H | $5.42 | $3.81 |
| LT4320HDD#PBF | 3x3 DFN-8 | H | $4.93 | $3.45 |
| LT4320HDD#TRPBF | 3x3 DFN-8 | H | $4.99 | $3.51 |
| LT4320HMSE-1#PBF | MS-12E | H | $5.36 | $3.75 |
| LT4320HMSE-1#TRPBF | MS-12E | H | $5.42 | $3.81 |
| LT4320HMSE#PBF | MS-12E | H | $4.93 | $3.45 |
| LT4320HMSE#TRPBF | MS-12E | H | $4.99 | $3.51 |
| LT4320HN8-1#PBF | N-8 | H | $6.51 | $4.56 |
| LT4320HN8#PBF | N-8 | H | $6.10 | $4.27 |
| LT4320IDD-1#PBF | 3x3 DFN-8 | I | $4.64 | $3.25 |
| LT4320IDD-1#TRPBF | 3x3 DFN-8 | I | $3.31 | |
| LT4320IDD#PBF | 3x3 DFN-8 | I | $4.21 | $2.95 |
| LT4320IDD#TRPBF | 3x3 DFN-8 | I | $3.01 | |
| LT4320IMSE-1#PBF | MS-12E | I | $4.64 | $3.25 |
| LT4320IMSE-1#TRPBF | MS-12E | I | $3.31 | |
| LT4320IMSE#PBF | MS-12E | I | $4.21 | $2.95 |
| LT4320IMSE#TRPBF | MS-12E | I | $3.01 | |
| LT4320IN8-1#PBF | N-8 | I | $5.64 | $3.95 |
| LT4320IN8#PBF | N-8 | I | $5.21 | $3.65 |
| LT4320MPMSE-1#PBF | MS-12E | MP | $13.93 | $9.75 |
| LT4320MPMSE-1#TRPBF | MS-12E | MP | $13.99 | $9.81 |
| LT4320MPMSE#PBF | MS-12E | MP | $12.64 | $8.85 |
| LT4320MPMSE#TRPBF | MS-12E | MP | $12.70 | $8.91 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1823B | LT4320IDD Demo Board | 1.2kW Ideal Diode Bridge Full-Wave Rectifier [9V to 40V, 30A] | $75.00 |
| DC1902B | LT4320IDD Demo Board | 200W Ideal Diode Bridge Full-Wave Rectifier [9V to 60V, 3.5A] | $75.00 |
| DC2047A-A | LT4276B/LT4321 Demo Board | PoE+ (25W, 12V/1.9A) PD with DC/DC, Ideal Diode Bridge and 9V-57V AUX | $95.00 |
| DC2465A | LT4320IDD-1 3-Phase Ideal Diode Bridge Rectifier [9VAC to 48VAC L-L, 25A] | $125.00 |
- DN519 - 有源桥整流器可减少 PoE 安保摄像机内部的热耗散
- 9V 至 72V 理想二极管桥控制器现提供适合军用和汽车应用的 −55ºC 至 125ºC 温度规格范围
- 理想二极管桥控制器最大限度地减少整流器发热量和电压损失
- 低损耗三相理想二极管桥整流器减少了热量，从而可简化热设计
- DN519 - Active Bridge Rectifiers Reduce Heat Dissipation within PoE Security Cameras
- R572 - Reliability Data
- Ideal Diode Bridge
- Meet Green Standards in 24VAC and 12VAC Lighting Systems: Replace Halogen Bulbs with LEDs Driven by High Power Factor, High Efficiency Converter
- 9V to 72V Ideal Diode Bridge Controller Now Specified from -55°C to 125°C for Military & Automotive Applications
- Ideal Diode Bridge Controller Minimizes Rectifier Heat & Voltage Loss
- Low Loss 3-Phase Ideal Diode Bridge Rectifier Reduces Heat, Easing Thermal Design
- LT4320 Footprints and Symbols
- LT4320 - Ideal Diode Bridge vs Schottky Diode Bridge
- LT4320 -Reducing AC/DC Rectifier Size and Cost with an LT4320 Ideal Diode Bridge
- Ideal Diode Bridge
- LT4320-1 Demo Circuit - Highly Efficient 3-Phase Bridge Rectifier (5-28VAC RMS to 70V @ 25A Max)
