Part Number: BP3122

Function: High Precision PSR Constant Current LED Driver

Package: SOP 8 Pin type

Manufacturer: Bright Power Semiconductor ( https://bpsemi.com// )

Image :

Description

The BP3122 is a high precision primary-side feedback and regulation controller for LED lighting, it operates in constant current control mode and is designed to work in inductor current discontinuous conduction mode and especially suitable for flyback convertor under universal input. The output power of system is recommended to less than 5W.

 

Pinout

 

Features

1. Built-in 650V Power MOSFET
2. Constant current control without secondary sense and feedback circuit.
3. No Auxiliary winding for sensing and supplying
4. Ultra low operating current to improve efficiency
5. Universal input voltage
6. ±5% LED current accuracy
7. LED short and open circuit protection
8. CS resistor short circuit protection
9. VCC under-voltage protection
10. Over temperature protection

Application Circuit

 

BP3122 Datasheet

 

Related articles across the web

• 5 Different Ways to Use LED Drivers
• Dell UltraSharp 4K UP3216Q 32-inch Monitor Review

Part Number: CL1502

Function: Non-isolated step-down LED constant current driver

Package: SOP 8 Pin Type

Image :

Description

CL1502 is a high performance step-down constant current driver IC, can achieve high precision constant current LED driver. The chip operates in an inductor current critical continuous mode operating from 85Vac to 265Vac. Integrated 500V power devices within the chip, peripheral applications without auxiliary winding detection and power supply can achieve high-precision constant current, greatly reducing the external cost.

 

Pinout

Features

1. Wide input voltage
2. ± 5% LED output current accuracy
3. Internal integrated 500V power tube
4. chip ultra-low operating current
5. Inductor current critical continuous mode (TM)
6. No auxiliary winding
7. Excellent line voltage regulation and load regulation
8. LED on / short circuit protection
9. current sampling resistor short-circuit protection
10. Undervoltage Lockout (UVLO)
11. Over temperature adjustment function

 

Application Circuit

 

CL1502 Datasheet

 

Related articles across the web

• LTC Design Note: Dual 9A, step-down μModule regulator with digital power system management
• Rugged Cortex A9/M4 hybrid module runs Linux at 2W