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數據: LM5035B PWM Controller w/Integ Half-Bridge and SyncFET Drivers 數據表
LM503??5B半橋控制器/柵極驅動器包含使用帶線電壓饋電的電壓模式控制實現半橋拓撲功率轉換器所需的所有功能 - 前鋒。
LM503??5B是LM503??5A半橋PWM控制器的功能變體。與LM503??5A或LM503??5相比,LM503??5B具有更高的最大占空比和更高的啟動穩壓器輸出電流。此外,LM503??5B的同步整流器驅動輸出在關斷模式下保持低電平。
LM503??5,LM503??5A和LM503??5B包括一個浮動高側柵極驅動器,能夠在高達105V的電源電壓下工作。高側和低側柵極驅動器都能夠達到2A峰值。內置高壓啟動穩壓器,以及可編程線路欠壓鎖定(UVLO)和過壓保護(OVP)。振蕩器采用單個電阻編程,頻率高達2MHz。振蕩器也可以與外部時鐘同步。電流檢測輸入和可編程定時器提供逐周期電流限制和可調節打嗝模式過載保護.LM503??5,LM503??5A,LM503??5B和LM503??5C之間的差異總結如下。
所有商標均為其各自所有者的財產。
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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 |
? |
LM5035B | LM5035C | LM5036 | LM5039 | UCC28250 | UCC28251 |
---|---|---|---|---|---|
Half-Bridge ? ? | Half-Bridge Push-Pull ? ? | 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 ? ? |
Multi-topology Synchronization Pin ? ? | 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 ? ? |