Overview
The CAT4109V-GT2, produced by onsemi, is a 3-channel constant-current RGB LED driver designed for efficient and versatile LED lighting applications. This device requires no inductor and supports independent current control for each LED channel through external resistors. It features low output voltage operation, individual PWM dimming, and an output enable (OE) control pin for comprehensive control over the LED channels. The CAT4109V-GT2 is available in a 16-lead SOIC package and is Pb-free, halogen-free, and RoHS compliant.
Key Specifications
| Parameter | Rating | Units |
|---|---|---|
| VDD Voltage | 6 | V |
| Input Voltage Range (OE, PWM1, PWM2, PWM3) | −0.3 V to 6 V | V |
| LED1, LED2, LED3 Voltage | 25 | V |
| DC Output Current on LED1 to LED3 | 200 | mA |
| Storage Temperature Range | −55 to +160 | °C |
| Junction Temperature Range | −40 to +150 | °C |
| Lead Soldering Temperature (10 sec.) | 300 | °C |
| Thermal Shutdown Temperature | 150 | °C |
| Logic Supply Voltage | 3 V to 5.5 V | V |
| Package Type | 16-lead SOIC |
Key Features
- 3 Independent Current Sinks up to 175 mA rated 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
- Thermal Shutdown Protection
- AEC-Q100 Qualified and PPAP Capable for Automotive 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?
The maximum current each LED channel can handle is up to 175 mA. - How are the LED currents set in the CAT4109V-GT2?
The LED currents are set by external low power control resistors connected to the RSET pins. - What is the purpose of the Output Enable (OE) pin?
The OE pin is used to enable or disable all three LED channels and can also be used for dimming by applying an external PWM signal. - What is the thermal shutdown temperature of the device?
The thermal shutdown temperature is 150°C. - Is the CAT4109V-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 logic supply voltage range for the CAT4109V-GT2?
The logic supply voltage range is 3 V to 5.5 V. - How many channels does the CAT4109V-GT2 support?
The device supports three independent LED channels. - What is the package type of the CAT4109V-GT2?
The package type is a 16-lead SOIC. - Is the CAT4109V-GT2 RoHS compliant?
Yes, the device is Pb-free, halogen-free, and RoHS compliant. - What is the maximum voltage the LED pins can withstand?
The LED pins can withstand voltages up to 25 V.
