BP2832A Datasheet – Buck Offline LED Driver, SOP 8 IC
Non-isolated Buck Offline LED Driver
BP2832A overview
The BP2832A 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 BP2832A 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.
The BP2832A utilizes patent pending current control method. It can achieve precise output current and excellent line regulation. The driver operates in critical conduction mode, the output current does not change with the inductance and LED output voltage.
The BP2832A offers rich protection functions to improve the system reliability, including LED open circuit protection, LED short circuit protection, VCC under voltage protection, CS resistor short circuit protection and thermal regulation function.
| Part Number | BP2832A |
| Function | Non-isolated Buck Offline LED Driver |
| Package | SOP 8 Pin |
| Manufacturer | BPS Confidential ( ) |
| Datasheet | Download PDF  |
Datasheet
BP2832A features
- Critical Conduction Mode Operation
- Internal 500V Power MOSFET
- No Auxiliary Winding
- Ultra Low Operating Current
- ±5% LED Output Current Accuracy
- LED Open Protection
- LED Short Protection
- Current Sensing Resistor Short Protection
- VCC Under Voltage Protection
- Thermal Regulation Function
- Available in SOP-8 Package
BP2832A pinout
| Pin | Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | ROVP | Over Voltage Protection Setting Pin. Connect a resistor to GND |
| 3 | NC | No Connection. Should be connected to GND(Pin1) |
| 4 | VCC | Power Supply Pin |
| 5,6 | DRAIN | Internal HV Power MOSFET Drain. |
| 7,8 | CS | Current Sense Pin. Connect a sense resistor between this pin and GND pin. |
Absolute maximum ratings
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| VCC pin maximum sink current | ICC_MAX | 5 | mA |
| Internal HV MOSFET drain voltage | DRAIN | -0.3~500 | V |
| Current sense pin input voltage | CS | -0.3~6 | V |
| Over-voltage setting pin voltage | ROVP | -0.3~6 | V |
| Power dissipation (note 2) | PDMAX | 0.45 | W |
| Thermal resistance (Junction to Ambient) | θJA | 145 | ℃/W |
| Operating junction temperature | TJ | -40 to 150 | ℃ |
| Storage temperature range | TSTG | -55 to 150 | ℃ |
| ESD (note 3) | 2 | KV |
BP2832A applications
- LED Candle Light
- LED Bulb
- Other LED Lighting
More about BP2832A
BP2832A Absolute Maximum Ratings
Note 1: Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. Under “recommended operating conditions” the device operation is assured, but some particular parameter may not be achieved. The electrical characteristics table defines the operation range of the device, the electrical characteristics is assured on DC and AC voltage by test program. For the parameters without minimum and maximum value in the EC table, the typical value defines the operation range, the accuracy is not guaranteed by spec.
Note 2: The maximum power dissipation decrease if temperature rise, it is decided by TJMAX, θJA, and environment temperature (TA). The maximum power dissipation is the lower one between PDMAX = (TJMAX - TA)/ θJA and the number listed in the maximum table
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