MC44608

外部组件极少的可靠且灵活的 SMPS 控制器

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概览

MC44608 是一款用于离线转换器的高性能电压模式控制器。此高电压电路集成了启动电流源和振荡器电容器，仅需很少外部组件，且具有高灵活性和可靠性。该器件还具有极高能效待机管理，通过高能效脉冲模式运行实现。此技术可将待机功耗降低到大约 1W，同时可在 150W SMPS 中提供 300mW。集成的启动电流源无损耗离线启动直接离线运行快速启动

特性

Flexibility
Duty Cycle Control
Undervoltage Lockout with Hysteresis
On Chip Oscillator Switching Frequency 40, 75, or 100 kHz
Secondary Control with Few External Components

Protections
Maximum Duty Cycle Limitation
Cycle by Cycle Current Limitation
Demagnetization (Zero Current Detection) Protection
"Over V_CC Protection" Against Open Loop
Programmable Low Inertia Over Voltage Protection Against Open Loop
Internal Thermal Protection

SMPS Controller
Pulsed Mode Techniques for a Very High Efficiency Low Power Mode
Lossless Startup
Low dV/dT for Low EMI Radiations
Pb-Free Packages are Available

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Offline Controllers | MC44608

外部组件极少的可靠且灵活的 SMPS 控制器

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