A buck constant current LED driver is a type of power supply or driver circuit used to power and control light-emitting diodes (LEDs) with a constant current. The term “buck” refers to a specific type of DC-DC converter topology, and when combined with “constant current,” it indicates that this driver is designed to regulate the current supplied to the LED load.

Part Number: BP2836D

Function: Non-isolated Buck Offline LED Driver

Package: DIP 8 Pin

Manufacturer: BPS

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Description

The BP2836D 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 BP2836D integrates a 500V power MOSFET. With patent pending MOSFET driving technique, the operating current of the IC is very low. So it doesn’t need the auxiliary winding for supplying the chip. It can achieve excellent constant current performance with very few external components, so the system cost and size are minimized.

 

Features

1. Critical Conduction Mode Operation

2. Internal 500V Power MOSFET

3. No Auxiliary Winding

4. Ultra Low Operating Current

5. ±5% LED Output Current Accuracy

6. Current Sensing Resistor Short Protection

7. Thermal Regulation Function

Pinouts:

Applications:

1. LED Tube

2. LED Ceiling Light

3. LED Bulb

4. Other LED Lighting

BP2836D PDF Datasheet

Part Number: TA6932

Function: LED Dedicated drive control circuit

Package: SOP 32

Manufacturer: Titan Micro

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Description

The TA6932 is a dedicated circuit for LED (Light Emitting Diode Display) drive control, which integrates MCU digital interface, data latch, LED high current drive and other circuits.

An LED drive control dedicated circuit refers to an electronic circuit designed specifically to control the operation of Light Emitting Diodes (LEDs). LEDs are semiconductor devices that emit light when an electric current passes through them, and they are commonly used in various applications for illumination, displays, indicators, and more. A dedicated LED drive control circuit ensures that the LEDs operate efficiently and reliably.

Features

•  Power CMOS process

•  Display mode 8 segments × 16 bits

•  Brightness adjustment circuit (adjustable duty cycle 8)

•  Serial Interface (CLK, STB, DIN)

•  Oscillation method: RC oscillation

•  Built-in power-on reset circuit

 

Pinout

Key components and functions of an LED drive control dedicated circuit:

1. Current Regulation: LEDs are typically driven with a constant current to ensure consistent brightness and longevity. The circuit includes components to regulate the current flowing through the LEDs.

2. Voltage Regulation: Depending on the LED configuration, the circuit might include voltage regulation to maintain a steady voltage across the LEDs.

3. Power Supply: The circuit includes a power supply source that provides the necessary voltage and current to drive the LEDs. This power supply could be from a battery, AC adapter, or other sources.

TA6932 PDF Datasheet

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