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LM5021离线式脉宽调制(PWM)控制器包含有实现采用电流模式控制的高效离线式单端反激/正激电源转换器所需的所有特性.LM5021包含超低(25μA)启动电流特性,可最大程度降低高压启动网络中的功耗。跳周期模式可降低轻负载条件下的功耗,从而实现节能应用(ENERGYSTAR®) ,CECP等)。附加特性包括欠压锁定,逐周期电流限制,断续模式过载保护,斜率补偿,软启动和振荡器同步功能。这款高性能8引脚IC的总传播延迟不到100ns,并且能够通过单个电阻设定1MHz的振荡器。
所有商标均为其各自所有者的财产。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) |
LM5021-Q1 | LM5021 | UCC28600-Q1 | UCC28700-Q1 |
---|---|---|---|
Current | Current | Current | Current |
80 | 80 | 99 | 99 |
1000 | 1000 | 130 | 132 |
20/7.25 | 20/7.25 | 10.3/9.3 | 21/8 |
SSR DCM CCM Frequency Synchronization Automotive | SSR DCM CCM Frequency Synchronization Smart Meters Compatible Audio Compatible Motor Drive Compatible Power Delivery Compatible | SSR QR/TM Error Amplifier Green Mode Light Load Efficiency Automotive | PSR Adjustable CBC CV/CC Control DCM Low Power Light Load Efficiency Error Amplifier Soft Switching Current Limiting Thermal Shutdown Green Mode Input Line Monitor Leading Edge Blanking Automotive |
-40 to 125 | -40 to 125 | -40 to 105 | -40 to 125 |
VSSOP | PDIP VSSOP | SOIC | SOT-23 |
Automotive | Catalog | Automotive | Automotive |
8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | See datasheet (PDIP) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) |