HX5919H的多工作模式使得芯片能够实现低静态功耗、低音频噪音、 高效率。
内置的频率抖动可以很好的降低芯片的EMI以及EMI滤波成本,
而且高集成的功率MOSFET能够降低外部PCB的面积以及系统的成本。
HX5919H同时具有多种保护功能:
逐周期峰值电流检测、欠压保护、过压保护、VDD钳
位、过载保护等。
FEATURES
◆ Built-in 800V Power BJT
◆ Proprietary NC-Cap/PSR-IITM Control:
● ±4% CC and CV Precision
● Proprietary “Audio Noise Cancellation” Control
● Built-in “Fast Dynamic Response” Control to Meet USB Charge Requirements
● Proprietary “Zero-Output Startup” Control
● Proprietary “Smart Output Short Protection”
● without External Compensation/Filtering Capacitor Needed
● Max. 50V Output for AC/DC LED Lighting
◆ Direct Drive of Low Cost BJT
◆ Proprietary Cable Drop Compensation
◆ Multi Mode Control
◆ Wide VDD Operating Range
◆ 11.7V UVLO Hysteresis Window
◆ Cycle-by-Cycle Current Limiting
◆ Leading Edge Blanking (LEB)
◆ Built-in Soft Start, Pin Floating Protection
◆ VDD UVLO, OVP & Clamp
APPLICATIONS
◆ Battery chargers
◆ Replaces linear transformer and RCC SMPS
◆ Small power adapter
◆ AC/DC LED lighting