BP3519 Integrated Circuit by BPS | SOT23-5L Package

BP3519 | PSR Isolated CCCV Driver IC
Package: SOT23-5L | Pins: 5 | Type: SMD

The BP3519 from BPS is a Primary-Side Regulation (PSR) isolated CCCV driver IC, optimized for offline LED lighting, chargers, and auxiliary power supplies. Designed to operate in Discontinuous Conduction Mode (DCM), the BP3519 delivers highly accurate constant current and constant voltage (CCCV) performance without requiring an external compensation capacitor—reducing both BOM size and overall cost.

It supports dual control modes (PWM & PFM), enabling low standby power consumption, high efficiency, and minimized no-load noise.

Key Features

• Wide input voltage range: 85VAC – 265VAC (universal input)

• Accurate CCCV control without external compensation

• PWM/PFM control modes for improved efficiency and low standby power

• Cycle-by-cycle peak current control

• Comprehensive protection features:

  • Load open/short protection

  • VCC under/over-voltage protection

  • Over-temperature protection

• Compact SOT23-5L package for space-saving designs

Specifications

• Application Areas: LED drivers, chargers, standby/auxiliary power modules

• Operating Temperature Range: –40°C to +105°C

• Pins: 5

• Mounting: SMD