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数据: UCC2822x Interleaved Dual PWM Controller With Programmable Max Duty Cycle 数据表
UCC28220和UCC28221是一系列BiCMOS交错双通道PWM控制器。峰值电流模式控制用于确保两个通道之间的电流共享。精确的最大占空比钳位可设置为每通道60%至90%占空比之间的任何值。
UCC28220具有UVLO开关阈值为10 V,用于12 V电源,而UCC28221的门限阈值为13 V,适用于需要更宽UVLO迟滞的系统。两者都具有8V关断阈值。
其他功能包括可编程内部斜率补偿,带有特殊电路,用于确保为每个通道添加完全相同的斜率,以及高压110V内部JFET,用于更容易启动更宽滞后的UCC28221版本。
UCC28220采用16引脚SOIC和薄型TSSOP封装。 UNC28221还采用16引脚SOIC封装和稍大的20引脚TSSOP封装,允许高电压引脚间距满足UL1950爬电距离安全要求。
所有商标均为其各自所有者的财产。
Topology |
Control Method |
Vin (Min) (V) |
Vin (Max) (V) |
Frequency (Max) (kHz) |
UVLO Thresholds On/Off (V) |
Duty Cycle (Max) (%) |
Gate Drive (Typ) (A) |
Features |
Rating |
Operating Temperature Range (C) |
Pin/Package |
UCC28221 | UCC2810 | UCC28220 | UCC3810 |
---|---|---|---|
Flyback Forward | Boost Flyback Forward | Flyback Forward | Boost Buck Flyback Forward |
Current | Current | Current | Current |
13 | 8.3 | 10 | 8.3 |
110 | 11 | 15 | 11 |
2000 | 1000 | 2000 | 1000 |
13.0/8.0 | 11.3/8.3 | 10.0/8.0 | 11.3/8.3 |
90 | 50 | 90 | 50 |
0.01 | 1 | 0.01 | 1 |
Adjustable Switching Frequency Current Limiting HV Start-up Input Line Monitor Multi-topology Programmable Max Duty Cycle Programmable Slope Compensation Soft Start | Adjustable Switching Frequency Error Amplifier Leading Edge Blanking Multi-topology Programmable Max Duty Cycle Soft Start Synchronization Pin | Adjustable Switching Frequency Current Limiting Input Line Monitor Multi-topology Programmable Max Duty Cycle Programmable Slope Compensation Soft Start | Adjustable Switching Frequency Error Amplifier Leading Edge Blanking Multi-topology Programmable Max Duty Cycle Soft Start Synchronization Pin |
Catalog | Catalog | Catalog | Catalog |
-40 to 105 | -40 to 85 | -40 to 105 | 0 to 70 |
16SOIC 20TSSOP | 16PDIP 16SOIC | 16SOIC 16TSSOP | 16PDIP 16SOIC |