BL8345C
贝岭
19+
SOP-7
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产品简介
BL8345C is a highly integrated power switch with constant current (CC) control for LED lighting applications. The IC utilizes Quasi-Resonant (QR) Buck topology with active PFC control for high PF, low THD, and high efficiency. BL8345C integrates 500V power MOSFET with high voltage startup and IC power supply circuit, which requires very few external components. The IC senses the inductor current during the whole switching cycle, which can achieve high precision CC control with excellent line and load regulation. BL8345C integrates functions and protections of Under Voltage Lockout (UVLO), Cycle-by-cycle Current Limiting (OCP), Thermal Foldack (OTP), Output Over Voltage Protection (OVP), LED Open/Short Protection, etc. BL8345C use SOP-7 packag
优势特点
Active PFC for High PF and Low THD
PF>0.9 with Universal Input
Built-in HV Startup and IC Power Supply Circuit
Internal 500V Power MOSFET
Quasi-Resonant for High Efficiency
±3% CC Regulation
Very Low VDD Operation Current
Excellent Line and Load Regulation
LED Open/Short Protection
? Build in Protections:
Output Over Voltage Protection (OVP
Cycle-by-Cycle Current Limiting (OCP)
Leading Edge Blanking (LEB)
LED Open/Short Protection
On-Chip Thermal Foldback (OTP
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