Overview
The LT3755EMSE-2#TRPBF, produced by Analog Devices Inc., is a DC/DC controller designed to operate as a constant-current source for driving high current LEDs. This device is part of the LT3755 family, which includes the LT3755, LT3755-1, and LT3755-2. It is particularly suited for applications requiring high efficiency and reliability in LED lighting systems.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 4.5 | 40 | V | |
| Output Voltage Range | 75 | V | ||
| Operating Temperature Range | -40 | 125 | °C | |
| Gate Driver Output Rise Time (CL = 3300pF) | 35 | ns | ||
| Gate Driver Output Fall Time (CL = 3300pF) | 35 | ns | ||
| Gate Output Low (VOL) | 0.05 | V | ||
| Gate Output High (VOH) | INTVCC - 0.05 | V | ||
| Package Type | MSOP-16-EP |
Key Features
- Constant-current source for driving high current LEDs
- Wide input voltage range: 4.5V to 40V
- High output voltage capability: up to 75V
- Operating temperature range: -40°C to 125°C (and up to 150°C for some versions)
- Internal gate driver with rise and fall times of 35ns (CL = 3300pF)
- Overtemperature protection to ensure device reliability
- SYNC pin for synchronization (LT3755-1 only)
- Buffered PWM output for driving LED load disconnect NMOS or level shift
Applications
- High current LED lighting systems
- Automotive LED lighting (automotive grade versions available)
- General lighting applications requiring high efficiency and reliability
- Industrial lighting systems
- Display backlighting
Q & A
- What is the primary function of the LT3755EMSE-2#TRPBF?
The LT3755EMSE-2#TRPBF is a DC/DC controller designed to operate as a constant-current source for driving high current LEDs.
- What is the input voltage range of the LT3755EMSE-2#TRPBF?
The input voltage range is from 4.5V to 40V.
- What is the maximum output voltage capability of the LT3755EMSE-2#TRPBF?
The maximum output voltage capability is up to 75V.
- What is the operating temperature range of the LT3755EMSE-2#TRPBF?
The operating temperature range is from -40°C to 125°C, and up to 150°C for some versions.
- Does the LT3755EMSE-2#TRPBF have overtemperature protection?
- What is the purpose of the SYNC pin in the LT3755-1 version?
The SYNC pin in the LT3755-1 version is used for synchronization.
- Can the LT3755EMSE-2#TRPBF be used in automotive applications?
- What package type is the LT3755EMSE-2#TRPBF available in?
The device is available in an MSOP-16-EP package.
- What are the typical rise and fall times of the gate driver output?
The typical rise and fall times of the gate driver output are 35ns (CL = 3300pF).
- Is the LT3755EMSE-2#TRPBF RoHS compliant?
