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UCC28780是一款高频有源钳位反激式控制器,可实现符合严格全球效率标准(如美国能源部6级和欧盟CoC V5 Tier-2能效标准)的高密度交流/直流电源。用户可编程高级控制律特性可以针对硅(Si)和氮化镓(GaN)功率FET进行性能优化。由于具有逻辑电平栅极信号和使能输出,因此使用组合了驱动器和GaN FET的开关器件进行直接运行的能力得到进一步增强。
此器件凭借先进的自动调谐技术,自适应死区时间优化和可变开关频率控制律,可在宽广的工作范围内实现零电压开关(ZVS)。使用可根据输入和输出条件改变运行方式的自适应多模式控制,UCC28780可在提高效率的同时减轻可闻噪声。高达1MHz的可变开关频率和精确的可编程过功率保护功能(该功能可在宽广的线路范围内为散热设计提供始终如一的功率),无源组件的尺UCC28780与VDS感应同步整流器控制器(如UCC24612)结合使用,可实现更高的转换效率和非常紧凑的设计。
所有商标均为其各自所有者的财产。
Control Method |
Duty Cycle (Max) (%) |
Frequency (Max) (kHz) |
UVLO Thresholds On/Off (V) |
Features |
Operating Temperature Range (C) |
Package Group |
Rating |
Package Size: mm2:W x L (PKG) |
UCC28780 | LM5023 | UCC28600 | UCC28610 | UCC28704 | UCC28740 |
---|---|---|---|---|---|
Current | Current | Current | Current | Current | Current |
99 | 100 | 99 | 100 | 99 | 99 |
1000 | 130 | 130 | 130 | 85 | 100 |
17.5/10 | 12.8/7.5 | 10.3/9.3 | 10.2/8 | 21/7.7 | 21/7.75 |
Zero Voltage Switching Active Clamp Flyback | SSR HV Start-up Configurable QR/TM Green Mode Light Load Efficiency Power Delivery Compatible | SSR QR/TM Error Amplifier Green Mode Light Load Efficiency Power Delivery Compatible Motor Drive Compatible Audio Compatible | DCM SSR HV Start-up Soft Switching Power Delivery Compatible Audio Compatible Motor Drive Compatible | PSR HV Start-up Configurable Fixed CBC NTC Configurable CV/CC Control DCM USB Type-C Compatible IoT Compatible Power Delivery Compatible | SSR HV Start-up CV/CC Control DCM Smart Meters Compatible IoT Compatible USB Type-C Compatible Power Delivery Compatible |
-40 to 125 | -40 to 125 | -40 to 105 | -40 to 125 | -40 to 125 | -40 to 125 |
SOIC WQFN | VSSOP | SOIC | PDIP SOIC | SOT-23 | SOIC |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
16SOIC: 59 mm2: 6 x 9.9(SOIC) 16WQFN: 9 mm2: 3 x 3(WQFN) | 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) | See datasheet (PDIP) 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 7SOIC: 29 mm2: 6 x 4.9(SOIC) |