BP9022A Datasheet – PSR Constant Current LED Driver IC
High Precision PSR Constant Current LED Driver
BP9022A overview
The BP9022A is a High Precision PSR Constant Current LED Driver, supplied in an SOP 8 Pin 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 BP9022A pinout and maximum ratings, with the full datasheet PDF to preview below or download.
The BP9022A 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.
The BP9022A integrates 650V power MOSFET. Since adopting primary sense and feedback control technology, the secondary sense and feedback circuit is eliminated. The loop compensation components are also removed while maintaining stability overall operating conditions. It uses patent pending source driver architecture and demagnetization sensing technology, the operating current is very low, and it doesn’t need the auxiliary winding for sensing the output current and supplying the chip. The low component counts and small system size are realized.
Since using the proprietary high accurate current sense method, the BP9022A realizes ±5% accuracy of LED current along with excellent line and load regulation.
The BP9022A offers rich protection functions including LED open/short circuit protection, CS resistor short circuit protection, thermal regulation.
Datasheet
BP9022A features
- Built-in 650V Power MOSFET
- Constant current control without secondary sense and feedback circuit.
- No Auxiliary winding for sensing and supplying
- Ultra low operating current to improve efficiency
- Universal input voltage
- ±5% LED current accuracy
- LED short and open circuit protection
- CS resistor short circuit protection
- VCC under-voltage protection
- Thermal regulation
- Available in SOP8 package
BP9022A pinout
| Pin | Name | Description |
|---|---|---|
| 1 | CS | Current sense. This pin connects a current sense resistor to GND to detect the primary current of transformer. |
| 2 | VCC | Power supply |
| 3 | GND | Ground |
| 4 | ROVP | Connect a ROVP resistor to GND to set the LED open voltage. |
| 5,6 | NC | No connection, must be floated |
| 7,8 | DRAIN | Internal high voltage MOSFET Drain |
Absolute maximum ratings
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| VCC pin maximum sink current | ICC_max | 5 | mA |
| Internal HV MOSFET drain voltage | DRAIN | -0.3~650 | V |
| Current sense pin input voltage | CS | -0.3~6 | V |
| Set the LED open voltage | ROVP | -0.3~6 | V |
| Power dissipation (note2) | 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 (note3) | 2 | kV |
BP9022A applications
- GU10/E27 LED bulb,
- spot light
- Other LED lighting
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