Dimmable Linear LED Controller, BCR602
This 48V, 200mA dimmable linear LED driver is a highly reliable solution for various LED applications. The project features the BCR602 chip, which supports LED engines, LED modules, and LED strips. The driver utilizes a MOSFET (Q1) and the BCR602 chip to provide constant current control, and it can also be equipped with a Bipolar Junction Transistor (BJT).
The BCR602 chip regulates the LED current using the power Q1 transistor, allowing for precise control over the current level. The LED current is fully scalable by adjusting the external Current Sense (CS) resistor (R6), providing flexibility in design. Additionally, the BCR602 chip suppresses voltage ripple from the power supply, ensuring a constant LED current that results in better light quality.
The LED current can be dimmed using a resistor (Rset R7) or by applying an analog PWM signal to the Multi-Function Input Output (MFIO) pin. The embedded hot plug protection feature enables safe plug-in and plug-out of any LED load during operation, without compromising the driver’s performance.
The LED current level is configured to 200mA and has been thoroughly tested. The shunt resistors define the maximum LED current, which can be adjusted down to an effective resistor R6. The voltage drop at the VSENSE pin, caused by the shunt resistors, is 400mV, or less in case of dimming, resulting in improved overall system efficiency and providing extra voltage headroom to compensate for tolerances in LED forward voltage or supply voltage.
Furthermore, the driver features a smart Over-Temperature Protection (OTP) function, which reduces the LED current when the junction temperature of the BCR602 chip exceeds a certain threshold, ensuring safe and reliable operation.
Features
- Supply 8V to 48V (Supports Up to 60V -> Read Note)
- Load Current 200mA (Supports Higher Current -> Read Note)
- Project can drive 20 Series LEDs (With 60V Power Supply)
- LED current precision ±3%
- BCR602 Supports MOSFET and BJT (DPAK or SOT-223
- 100 Hz/120 Hz supply ripple suppression
- 3 percent analog dimming or 1 percent PWM dimming of LED current at the MFIO pin
- Board suitable for assembly with transistor packages of types SOT-223, DPAK
- Rset functionality at the MFIO pin (R7)
- Hot-plug protection to minimize LED inrush current
- OTP function vs junction temperature
- Screw Terminals for LED and Power Input
- Header Connector for Dimmer Voltage Input 0 to 3.3V or PWM Input
- PCB Dimensions 31.75 x 20.96 mm
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This 48V, 200mA dimmable linear LED driver is a highly reliable solution for various LED applications. The project features the BCR602 chip, which supports LED engines, LED modules, and LED strips. The driver utilizes a MOSFET (Q1) and the BCR602 chip to provide constant current control, and it can also be equipped with a Bipolar Junction Transistor (BJT).
The BCR602 chip regulates the LED current using the power Q1 transistor, allowing for precise control over the current level. The LED current is fully scalable by adjusting the external Current Sense (CS) resistor (R6), providing flexibility in design. Additionally, the BCR602 chip suppresses voltage ripple from the power supply, ensuring a constant LED current that results in better light quality.
The LED current can be dimmed using a resistor (Rset R7) or by applying an analog PWM signal to the Multi-Function Input Output (MFIO) pin. The embedded hot plug protection feature enables safe plug-in and plug-out of any LED load during operation, without compromising the driver’s performance.
The LED current level is configured to 200mA and has been thoroughly tested. The shunt resistors define the maximum LED current, which can be adjusted down to an effective resistor R6. The voltage drop at the VSENSE pin, caused by the shunt resistors, is 400mV, or less in case of dimming, resulting in improved overall system efficiency and providing extra voltage headroom to compensate for tolerances in LED forward voltage or supply voltage.
Furthermore, the driver features a smart Over-Temperature Protection (OTP) function, which reduces the LED current when the junction temperature of the BCR602 chip exceeds a certain threshold, ensuring safe and reliable operation.
Features
- Supply 8V to 48V (Supports Up to 60V -> Read Note)
- Load Current 200mA (Supports Higher Current -> Read Note)
- Project can drive 20 Series LEDs (With 60V Power Supply)
- LED current precision ±3%
- BCR602 Supports MOSFET and BJT (DPAK or SOT-223
- 100 Hz/120 Hz supply ripple suppression
- 3 percent analog dimming or 1 percent PWM dimming of LED current at the MFIO pin
- Board suitable for assembly with transistor packages of types SOT-223, DPAK
- Rset functionality at the MFIO pin (R7)
- Hot-plug protection to minimize LED inrush current
- OTP function vs junction temperature
- Screw Terminals for LED and Power Input
- Header Connector for Dimmer Voltage Input 0 to 3.3V or PWM Input
- PCB Dimensions 31.75 x 20.96 mm
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