BP3519 is a PSR (Primary-Side Regulation) isolated Constant-Current/Constant-Voltage (CCCV) driver IC from BPS / Bright Power Semiconductor. It is designed for offline flyback applications and operates from a universal 85–265 VAC input range.
Key Specifications
Parameter BP3519
Manufacturer BPS (Bright Power Semiconductor)
Part Number BP3519
Function PSR Isolated CCCV Driver IC
Topology PSR Flyback
Input 85–265 VAC
Control PWM / PFM
Output Accuracy ±5%
Standby Power <100 mW
Package SOT23-5L
Operating Temperature −40°C to +105°C
Gate Drive External power MOSFET
Pins GATE, GND, CS, FB, VCC
The IC includes cycle-by-cycle peak-current control, load open/short protection, VCC under/over-voltage protection, over-temperature protection, and internal soft-start.
Pin Configuration
1. GATE – Drives external power MOSFET
2. GND – Ground
3. CS – Current-sense input
4. FB – Feedback input
5. VCC – Supply voltage
Applications
• Battery/AC-DC chargers
• LED power supplies
• Standby / auxiliary power supplies
• Compact isolated AC-DC converters
• CCCV flyback power supplies
Exact MPN: BP3519
Brand/Make: BPS
Package: SOT23-5L
