Boost Converter for PON OLT APD Bias
產品編碼：XY5C21S
類別：電源、溫控芯片
XY5C21S是一個固定頻率升壓轉換器，具有單通道APD電壓輸出和增益可選擇（1:5或4:5）的精確電流鏡。
XY5C21S集成采樣/保持電路，適用于突發模式接收應用，以捕獲流經APD的電流，并將其傳輸到外部ADC。
? Input Voltage Range: +2.8V to +5.5V
? Wide Output Voltage Range: 6V to 56V
? Internal 900mΩ (typ) 60V MOSFET
? Less Than 5% Current Mirror (1:5 or 4:5) Error for APD Applications
? Ultra-Fast APD Current Limit (0.5μs Response Time) with an Adjustable Current Limit Point
? Sample Window with Typical 300ns
? Fixed PWM Frequency (1.6MHz) Provides Easy Filtering in Low-Noise Applications
? Internal Soft-Start
? 2mA (max) Shutdown Current
? -40℃ to +100℃ Temperature Range
? Thermally-Enhanced, Lead-Free, 3mm x 3mm,16-Pin TQFN Package
? APD Bias
? Optical Line Terminal
? High-Voltage Sensor Supply