Overview
The LT8316EFE#TRPBF 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. It samples the output voltage from the isolated flyback waveform appearing across a third winding on the transformer, enabling quasi-resonant boundary mode operation. This mode improves load regulation, reduces transformer size, and maintains high efficiency. The LT8316 is designed for applications requiring a wide input voltage range and low quiescent current, making it suitable for various power management scenarios.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 16V to 560V (600V max) |
| Output Voltage Regulation | No opto-isolator required, samples output voltage from isolated flyback waveform |
| Operating Mode | Quasi-resonant boundary mode |
| Quiescent Current | 75µA |
| Temperature Range | -40°C to 125°C (LT8316E, LT8316I), -40°C to 150°C (LT8316H) |
| Package Type | 20-Lead Plastic TSSOP |
| Current Limit | Programmable |
| Soft-Start | Available |
| Load Regulation | Improved through quasi-resonant boundary mode operation |
| Efficiency | High efficiency maintained |
Key Features
- Wide input voltage range: 16V to 560V (600V max)
- No opto-isolator required for regulation
- Quasi-resonant boundary mode operation
- Constant-current and constant-voltage regulation
- Low-ripple light load burst mode operation
- Low quiescent current: 75µA
- Programmable current limit and soft-start
- TSSOP package with high-voltage spacing
- AEC-Q100 qualification in progress for automotive applications
Applications
The LT8316EFE#TRPBF is suitable for a variety of applications, including isolated power supplies, industrial power systems, and automotive power management. Its high input voltage range and low quiescent current make it ideal for systems requiring efficient and reliable power conversion. Additionally, its quasi-resonant boundary mode operation and constant-current/constant-voltage regulation capabilities make it a versatile choice for different power management scenarios.
Q & A
- What is the input voltage range of the LT8316EFE#TRPBF?
The input voltage range is 16V to 560V (600V max). - Does the LT8316EFE#TRPBF require an opto-isolator for regulation?
No, it does not require an opto-isolator for regulation. - What is the operating mode of the LT8316EFE#TRPBF?
The operating mode is quasi-resonant boundary mode. - What is the quiescent current of the LT8316EFE#TRPBF?
The quiescent current is 75µA. - What is the temperature range of the LT8316EFE#TRPBF?
The temperature range is -40°C to 125°C (LT8316E, LT8316I) and -40°C to 150°C (LT8316H). - What package type is the LT8316EFE#TRPBF available in?
The package type is 20-Lead Plastic TSSOP. - Is the LT8316EFE#TRPBF suitable for automotive applications?
Yes, it is suitable for automotive applications and is AEC-Q100 qualified. - What are the key features of the LT8316EFE#TRPBF?
Key features include wide input voltage range, no opto-isolator required, quasi-resonant boundary mode operation, constant-current and constant-voltage regulation, low-ripple light load burst mode operation, low quiescent current, programmable current limit and soft-start. - What are some typical applications of the LT8316EFE#TRPBF?
Typical applications include isolated power supplies, industrial power systems, and automotive power management. - How does the LT8316EFE#TRPBF improve load regulation?
The LT8316EFE#TRPBF improves load regulation through its quasi-resonant boundary mode operation.
