Overview
The CAV4201TD-GT3, produced by onsemi, is a high-efficiency step-down converter designed to drive high-current LEDs. It features a patented switching control algorithm that allows for highly efficient and accurate LED current regulation. This device is optimized for use in various lighting applications, including 12 V and 24 V systems, automotive and aircraft lighting, and general lighting. The CAV4201TD-GT3 is housed in a low-profile 5-lead TSOT-23 package, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Rating/Value | Units |
|---|---|---|
| Output Current | Up to 350 mA | mA |
| Input Voltage Range | Up to 36 V | V |
| Switching Frequency | 50 kHz to 1 MHz | kHz |
| Maximum LED String Voltage | Up to 32 V | V |
| Efficiency | Up to 94% | % |
| Package Type | TSOT-23 5-lead | |
| Thermal Shutdown | 150°C | °C |
| Storage Temperature Range | -65 to +160°C | °C |
Key Features
- High efficiency step-down converter with patented switching control algorithm for accurate LED current regulation.
- Single RSET resistor sets the full-scale LED string current up to 350 mA.
- Compatible with switching frequencies up to 1 MHz, ideal for small footprint and low-value external inductors.
- Enable, analog dimming, and LED shutdown control via a single CTRL input pin.
- Overload current protection and thermal shutdown.
- Open and short LED protection.
- Parallel configuration for higher output current.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
Applications
- 12 V and 24 V lighting systems.
- Automotive and aircraft lighting.
- General lighting.
- High brightness 350 mA LEDs.
Q & A
- What is the maximum output current of the CAV4201TD-GT3?
The maximum output current is up to 350 mA.
- What is the input voltage range for the CAV4201TD-GT3?
The input voltage range is up to 36 V.
- What is the switching frequency range of the CAV4201TD-GT3?
The switching frequency range is from 50 kHz to 1 MHz.
- How is the LED current set in the CAV4201TD-GT3?
The LED current is set by a single RSET resistor connected to the RSET pin.
- Does the CAV4201TD-GT3 support analog dimming?
Yes, it supports analog dimming via the CTRL input pin.
- What kind of protection features does the CAV4201TD-GT3 have?
It includes overload current protection and thermal shutdown.
- Can multiple CAV4201TD-GT3 devices be connected in parallel?
Yes, multiple devices can be connected in parallel to drive LEDs with current in excess of 350 mA.
- What is the package type of the CAV4201TD-GT3?
The package type is TSOT-23 5-lead.
- Is the CAV4201TD-GT3 RoHS compliant?
Yes, it is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What is the thermal shutdown temperature of the CAV4201TD-GT3?
The thermal shutdown temperature is 150°C.
