Overview
The LT3496EUFD#TRPBF is a triple output DC/DC converter designed by Analog Devices Inc., specifically tailored for driving LEDs. This device operates as a constant-current source and is suitable for various LED lighting applications. It features a fixed frequency, current mode control scheme, which provides excellent line and load regulation. The LT3496 is available in several package options, including a 28-lead Plastic QFN package, and is designed to operate over a wide temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Operation Voltage (VIN) | 3.3 | - | 30 | V |
| Switch Frequency | 1.8 | 2.1 | 2.4 | MHz |
| Gate Turn-On Delay | - | 110 | - | ns |
| Gate Turn-Off Delay | - | 110 | - | ns |
| Quiescent Current | - | 200 | - | µA |
| Operating Junction Temperature Range | -40 | - | 125 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
| Lead Temperature (Soldering, 10 sec) | - | - | 300 | °C |
Key Features
- Triple output DC/DC converter for driving LEDs.
- Fixed frequency, current mode control scheme for excellent line and load regulation.
- Overtemperature protection to safeguard the device during momentary overload conditions.
- Pulse Width Modulated (PWM) inputs for each converter to control the output.
- Internal regulator and UVLO (Under-Voltage Lockout) for stable operation.
- Available in 28-lead Plastic QFN and TSSOP packages.
Applications
The LT3496EUFD#TRPBF is ideal for a variety of LED lighting applications, including general lighting, automotive lighting, and backlighting for displays. Its ability to provide constant current to multiple LED strings makes it suitable for complex lighting systems that require precise control and reliability.
Q & A
- What is the primary function of the LT3496EUFD#TRPBF? The LT3496EUFD#TRPBF is a triple output DC/DC converter designed to operate as a constant-current source for driving LEDs.
- What are the operating voltage ranges for the LT3496EUFD#TRPBF? The device operates with an input voltage range of 3.3V to 30V.
- What is the typical switch frequency of the LT3496EUFD#TRPBF? The typical switch frequency is around 2.1 MHz.
- Does the LT3496EUFD#TRPBF have overtemperature protection? Yes, it includes overtemperature protection to safeguard the device during momentary overload conditions.
- What are the package options available for the LT3496EUFD#TRPBF? It is available in 28-lead Plastic QFN and TSSOP packages.
- What is the operating junction temperature range for the LT3496EUFD#TRPBF? The operating junction temperature range is –40°C to 125°C.
- How does the PWM input function on the LT3496EUFD#TRPBF? The PWM inputs control the output of each converter, allowing for precise control over the LED current.
- What is the quiescent current of the LT3496EUFD#TRPBF? The quiescent current is typically 200 µA.
- Is the LT3496EUFD#TRPBF suitable for automotive applications? Yes, it is suitable for automotive lighting applications due to its robust temperature range and reliability.
- What is the storage temperature range for the LT3496EUFD#TRPBF? The storage temperature range is –65°C to 150°C.
