BP2861X - Non-isolated Buck Offline LED Driver - chimicron

BP2861X is a high precision Buck constant current LED driver. The device operates in critical conduction mode and is suitable for 85Vac~265Vac universal input offline LED lighting. The BP2861X integrates a 500V power MOSFET, with gate MOSFET driving technique. It doesn’t need VCC capacitor and startup resistor. It can achieve excellent constant current performance with very few external components, so the system cost and size are minimized. BP2861X operates in critical conduction mode, it can achieve precise output current and excellent line regulation. The driver output current does not change with the inductance and output voltage. The BP2861X offers protections to improve the system reliability, including LED short circuit protection, and thermal regulation function. 

Features

◼ The same pinning as BP2866X

◼ Integrated 600V Superfast Recovery Diode

◼ No VCC Capacitor and Startup Resistor

◼ Integrated HV JFET for IC Power Supply

◼ No flicker in parallel with several lamps

◼ ±5% LED Output Current Accuracy

◼ LED Short Protection

◼ Thermal Regulation Function

◼ Available in SOP7 Package

Applications

◼ LED Bulb

◼ LED Tube

◼ Other LED Lighting

Typical Application

Typical application circuit for BP2861X

Pin Configuration and Marking Information

 

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