BL8812.pdf? 滿足六級(jí)能效標(biāo)準(zhǔn)
? 原邊反饋，無(wú)需光耦和 BL431
? ±5%的恒壓恒流精度
? 待機(jī)功耗小于 75mw
? 內(nèi)置 2A 650V 的高壓 MOS
? 最大功率 12W
? 內(nèi)置線電壓補(bǔ)償功能
? 完善的保護(hù)功能：
VDD 過(guò)壓保護(hù)功能
VDD 欠壓保護(hù)功能
FB 過(guò)欠壓保護(hù)功能
輸出短路保護(hù)功能
輸出過(guò)流保護(hù)功能
所有管腳開(kāi)路保護(hù)功能
OTP 保護(hù)功能
? 采用 SOP-7 的封裝形式
? 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
