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数据: LM5034 High Voltage Dual Interleaved Current Mode Controller with Active Clamp 数据表
LM5034双电流模式PWM控制器包含控制两个独立的正向/有源钳位DC /DC转换器或单个高电流转换器所需的所有功能两个交错的功率级。两个控制器通道的相位相差180°,从而降低了输入纹波电流。 LM5034包括一个可在高达100V的宽输入范围内工作的启动稳压器和复合(双极+ CMOS)栅极驱动器,可提供强大的2.5A峰值吸收电流。有源钳位栅极驱动器的可调死区时间和可调节的最大PWM占空比可降低初级侧MOSFET开关的应力。其他功能包括可编程线路欠压锁定,逐周期电流限制,具有可调节重启延迟的打嗝模式故障操作,PWM斜率补偿,软启动以及具有同步功能的2 MHz振荡器。
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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 |
LM5034 | LM5026 | UCC2897A |
---|---|---|
Active-Clamp Forward Flyback Forward | Active-Clamp Forward Forward | Active-Clamp Forward Forward |
Current | Current | Current |
13 | 13 | 18 |
100 | 100 | 110 |
2000 | 1000 | 1000 |
Programmable/1.25V | Programmable/1.25V | 12.7/~8 |
76 | 80 | 74 |
2.5 | 3 | 2 |
Current Limiting HV Start-up Soft Start Synchronization Pin | Current Limiting Dead Time Control HV Start-up Leading Edge Blanking Programmable Max Duty Cycle Programmable Soft Start Synchronization Pin | HV Start-up Input Line Monitor Programmable Slope Compensation Soft Start Soft Switching |
Catalog | Catalog | Catalog |
-40 to 125 | -40 to 125 | -40 to 125 |
20TSSOP | 16TSSOP 16WSON | 20QFN 20TSSOP |