Overview
The CAV4109V-GT2 is a 3-channel constant-current RGB LED driver produced by onsemi. This device is designed for applications requiring independent control over multiple LED channels without the need for external inductors. It features three independent current sinks, each capable of driving up to 175 mA, and is programmed via separate external resistors. The device supports low output voltage operation, thermal shutdown protection, and individual PWM dimming for each channel.
Key Specifications
| Parameter | Rating/Range | Units |
|---|---|---|
| VDD Voltage | 3.0 to 5.5 | V |
| Input Voltage Range (OE, PWM1, PWM2, PWM3) | −0.3 V to 6 V | V |
| LED1, LED2, LED3 Voltage | Up to 25 V | V |
| DC Output Current on LED1 to LED3 | Up to 200 mA | mA |
| Storage Temperature Range | −55 to +160°C | °C |
| Junction Temperature Range | −40 to +150°C | °C |
| Lead Soldering Temperature (10 sec.) | 300°C | °C |
| Thermal Shutdown | 150°C | °C |
| Package Type | 16-lead SOIC |
Key Features
- 3 Independent Current Sinks up to 175 mA rated at 25 V
- LED Current Set by External Low Power Control Resistors
- Individual PWM Control per Channel
- Low Dropout Current Source (0.4 V at 175 mA)
- Output Enable Input for Dimming
- 'Zero' Current Shutdown Mode
- 3 V to 5.5 V Logic Supply
- Thermal Shutdown Protection
- AEC-Q100 Qualified and PPAP Capable for Automotive and Other Applications
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
- Multi-color LED Lighting
- Architectural Lighting
- LED Signs and Displays
- LCD Backlight
Q & A
- What is the maximum current each LED channel can handle?
Each LED channel can handle up to 175 mA of current.
- How are the LED currents set in the CAV4109V-GT2?
The LED currents are set by external low power control resistors connected to the RSET pins.
- What is the logic supply voltage range for the CAV4109V-GT2?
The logic supply voltage range is from 3 V to 5.5 V.
- Does the CAV4109V-GT2 support PWM dimming?
Yes, it supports individual PWM dimming for each channel and also has an output enable pin for dimming.
- What is the thermal shutdown temperature for the CAV4109V-GT2?
The thermal shutdown temperature is 150°C.
- Is the CAV4109V-GT2 suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
- What is the package type of the CAV4109V-GT2?
The package type is a 16-lead SOIC.
- How do you calculate the power dissipation of the CAV4109V-GT2?
Power dissipation (PD) can be calculated as PD = VDD * IDD + VLEDN * ILEDN, where VLEDN is the voltage at the LED pin and ILEDN is the associated LED current.
- What are the recommended operating conditions for the ambient temperature?
The recommended ambient temperature range is from −40°C to +105°C for the CAV4109V-GT2.
- Is the CAV4109V-GT2 RoHS compliant?
Yes, the device is Pb-Free, Halogen Free/BFR Free and RoHS compliant.
