BP9833D Datasheet – DIP8, Buck Offline LED Driver IC
Non-isolated Buck Offline LED Driver
BP9833D overview
The BP9833D is a Non-isolated Buck Offline LED Driver, supplied in a DIP 8Pin package. The absolute maximum ratings table on this page lists the 9 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the BP9833D pinout and maximum ratings, with the full datasheet PDF to preview below or download.
The BP9833D 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 BP9833D 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 BP9833D 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 BP9833D 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.
Datasheet
BP9833D 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 DIP-8 Package
BP9833D 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 IC 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 | 0.9 | W |
| Thermal resistance (Junction to Ambient) | θJA | 80 | ℃/W |
| Operating junction temperature | TJ | -40 to 150 | ℃ |
| Storage temperature range | TSTG | -55 to 150 | ℃ |
| ESD (note 3) | 2 | KV |
BP9833D applications
- LED Tube
- LED Ceiling Light
- LED Bulb
- Other LED Lighting
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