BL8812.pdf? 满足六级能效标准
? 原边反馈，无需光耦和 BL431
? ±5%的恒压恒流精度
? 待机功耗小于 75mw
? 内置 2A 650V 的高压 MOS
? 最大功率 12W
? 内置线电压补偿功能
? 完善的保护功能：
VDD 过压保护功能
VDD 欠压保护功能
FB 过欠压保护功能
输出短路保护功能
输出过流保护功能
所有管脚开路保护功能
OTP 保护功能
? 采用 SOP-7 的封装形式
? Primary-side sensing and regulation without
TL431 and opto-coupler
? High precision constant voltage and current
regulation at universal AC input
? Multi-mode PWM/PFM operation
for efficiency
improving
? Integrated 1A 650V MOSFET
? Good dynamic response
? Programmable CV and CC regulation
? Built-in primary winding inductance
compensation
? Programmable cable drop compensation
? No need for control loop compensation
? Audio noise free operation
? Built-in leading edge blanking (LEB)
? Ultra low start-up current and low operating
current
? Comprehensive protection coverage with
auto-recovery
? On-chip OTP and external OTP
? VDD over voltage protection
? VDD under voltage lockout with
hysteresis (UVLO)
? Cycle-by-Cycle current limiting
? Feedback loop open protection
? Output short circuit protection
