Overview
The LT8316IFE#PBF is a micropower, high voltage flyback controller produced by Analog Devices Inc. This device is notable for its ability to regulate output voltage without the need for an opto-isolator, making it a compact and efficient solution for isolated power supplies. The LT8316 operates in quasi-resonant boundary mode, which enhances load regulation, reduces transformer size, and maintains high efficiency. It is designed to handle a wide input voltage range from 16V to 600V, making it suitable for various high-voltage applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 16V to 600V | V |
| Output Power (typical) | 100W | W |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 20-Lead Plastic TSSOP | |
| Topology | Flyback, No-Opto Flyback | |
| Quiescent Current | 75µA | µA |
| Feedback Voltage | 1.22V ± 5mV | V |
| EN/UVLO Hysteresis Voltage | ~65mV | mV |
Key Features
- No opto-isolator required for regulation
- Quasi-resonant boundary mode operation
- Constant-current and constant-voltage regulation
- Low-ripple light load burst mode operation
- Programmable current limit and soft-start
- Low quiescent current: 75µA
- TSSOP package with high-voltage spacing
- AEC-Q100 qualification in progress for automotive applications
Applications
The LT8316IFE#PBF is suitable for a variety of high-voltage applications, including:
- Isolated power supplies
- Automotive systems (with AEC-Q100 qualification)
- Industrial power supplies
- Telecommunications equipment
- Medical devices requiring high isolation
Q & A
- What is the input voltage range of the LT8316IFE#PBF?
The input voltage range is from 16V to 600V.
- Does the LT8316IFE#PBF require an opto-isolator for regulation?
No, it does not require an opto-isolator for regulation.
- What is the typical output power of the LT8316IFE#PBF?
The typical output power is 100W.
- What is the operating temperature range of the LT8316IFE#PBF?
The operating temperature range is -40°C to 125°C.
- What package type is the LT8316IFE#PBF available in?
It is available in a 20-Lead Plastic TSSOP package.
- What are the key topologies supported by the LT8316IFE#PBF?
The device supports Flyback and No-Opto Flyback topologies.
- What is the quiescent current of the LT8316IFE#PBF?
The quiescent current is 75µA.
- How is the output voltage programmed in the LT8316IFE#PBF?
The output voltage is programmed by the RFB1 and RFB2 resistors.
- Is the LT8316IFE#PBF suitable for automotive applications?
Yes, it is suitable for automotive applications with AEC-Q100 qualification in progress.
- What is the feedback voltage of the LT8316IFE#PBF?
The feedback voltage is 1.22V ± 5mV.
