BP2833D PDF Datasheet – Buck Offline LED Driver

Part Number: BP2833D

Function: Non-isolated Buck Offline LED Driver

Package: DIP 8 Pin Type

Manufacturer: BPS ( www.bpsemi.com )

Images:BP2833D pdf


The BP2833D 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 BP2833D 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.

A Buck Offline LED Driver is an electronic circuit or device designed to efficiently power and control LEDs (Light Emitting Diodes) from an AC (Alternating Current) input voltage source. This type of LED driver is used to convert higher AC voltages (e.g., mains voltage) to a lower and regulated DC (Direct Current) voltage suitable for driving LEDs. “Buck” refers to a specific type of DC-DC converter topology used for this purpose.

BP2833D pinout datasheet



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



1. LED Tube

2. LED Ceiling Light

3. LED Bulb

4. Other LED Lighting

BP2833D PDF Datasheet

LTC-4724WC PDF Datasheet – 7-Segment Numeric LED Display

Part Number: LTC-4724WC

Function: 7-Segment Numeric LED Display

Package: DIP 12 Pin type

Manufacturer: LITE-ON Electronics


1 page
LTC-4724WC pdf pinout


The LTC-4724WC is 7-Segment Numeric LED Display.

The LTS-4X01A, LTD-4000, LTC-4000 series are 0.4 inch (10.0mm) height single, dual, triple and quadruple digit displays. These devices have gray face and white segments.
The AlGaAs red seven segment displys are designed for applications requiring low power consumption. They are tested and selected for the excellent low current characteristics to ensure that the segments are matched at low current. Drive current as low as 1 mA per segment is available

A seven-segment display is an electronic display device used to display decimal numerals, most often as an alternative to the more complex dot-matrix displays. It is composed of seven segments (LEDs or LCDs), each of which can be lit or turned off independently to represent the decimal digits 0 to 9. The seven segments are arranged in the shape of the number 8, and are often referred to as “segments.” Seven-segment displays are widely used in digital clocks, electronic meters, and calculators, among other devices.

3 page
LTC-4724WC datasheet segment


1. 0.4 inch (10.0mm) digit height.

2. Choices of five bright colors: AlGaAs red/bright red/green/yellow/red orange.

3. Low power requirement.

4. Excellent characters appearance.

5. Categorized for luminous intensity.

6. I.C. compatiable.

Other data sheets are available within the file:

LTS-4301WC, LTS-4801WC, LTD-4608WC, LTD-4708WC, LTC-4624WC

LTC-4724WC PDF Datasheet