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数据: LM5035C PWM Controller With Integrated Half-Bridge and SyncFET Drivers 数据表
LM5035C半桥控制器和栅极驱动器包含使用电压模式控制和线电压前馈实现半桥拓扑功率转换器所需的所有功能。
LM5035C是LM5035B半桥PWM控制器的功能变体。 SR1和SR2波形的幅度为5 V而不是V CC 电平。此外,LM5035C的软停止功能无效。
LM5035,LM5035A,LM5035B和LM5035C包括一个浮动高侧栅极驱动器,能够在高达105 V的电源电压下工作高侧和低侧栅极驱动器都能够达到2-A峰值。内置高压启动稳压器,以及可编程线路欠压锁定(UVLO)和过压保护(OVP)。振荡器采用单个电阻编程,频率最高可达2 MHz。振荡器也可以与外部时钟同步。电流检测输入和可编程定时器提供逐周期电流限制和可调节打嗝模式过载保护。 LM5035,LM5035A,LM5035B和LM5035C之间的差异总结在器件比较表中。
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 |
LM5035C | LM5035B | LM5036 | LM5039 | UCC28250 | UCC28251 |
---|---|---|---|---|---|
Half-Bridge Push-Pull | Half-Bridge | Full-Bridge Half-Bridge Push-Pull | Full-Bridge Half-Bridge Push-Pull | Forward Full-Bridge Half-Bridge Push-Pull | Forward Full-Bridge Half-Bridge Push-Pull |
Feedforward Voltage | Feedforward Voltage | Feedforward Voltage | Voltage | Current Voltage | Current Feedforward Voltage |
13 | 13 | 18 | 13 | 4.3 | 4.3 |
105 | 105 | 100 | 105 | 20 | 20 |
2000 | 2000 | 2000 | 2000 | 1000 | 1000 |
Programmable/1.25V | Programmable/1.25V | Programmable/1.25V | Programmable/1.25V | 4.3/4.1 | 4.3/4.1 |
50 | 50 | 50 | 50 | 100 | 100 |
2 | 2 | 2 | 2 | 0.2 | 0.2 |
Synchronization Pin | Multi-topology Synchronization Pin | Current Limiting Frequency Synchronization HV Start-up Input Line Monitor Integrated Switch Leading Edge Blanking Multi-topology Soft Start Synchronization Pin Thermal Shutdown Wide DC input | Multi-topology Synchronization Pin | HV Start-up | Leading Edge Blanking Multi-topology Programmable Slope Compensation Soft Start Synchronization Pin |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
20HTSSOP 24WQFN | 20HTSSOP 24WQFN | 28WQFN | 20HTSSOP 24WQFN | 20QFN 20TSSOP | 20QFN 20TSSOP |