Overview
The LT8309ES5#TRMPBF is a secondary-side synchronous rectifier driver produced by Analog Devices Inc. This component is designed to replace the output rectifier diode in flyback topology power conversion circuits, enhancing efficiency and reducing losses. It is available in a 5-lead Plastic TSOT-23 package and operates over a wide temperature range, making it suitable for various industrial and consumer applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 4.5 | - | 40 | V |
| Quiescent Current (Not Switching, INTVCC = 8V) | 300 | 345 | - | µA |
| Turn-On Propagation Delay (tD(ON)) | - | 31 | 40 | ns |
| Turn-Off Propagation Delay (tD(OFF)) | - | 26 | 36 | ns |
| GATE Driver Output Rise Time (CL = 3300pF) | - | 21 | - | ns |
| GATE Driver Output Fall Time (CL = 3300pF) | - | 11 | - | ns |
| Pull-Up Resistance | - | 2.7 | - | Ω |
| Pull-Down Resistance | - | 0.8 | - | Ω |
| Operating Junction Temperature Range | -40 | - | 125 | °C |
Key Features
- Secondary-side synchronous rectifier driver for flyback topologies.
- High efficiency and reduced power losses.
- Wide operating temperature range: –40°C to 125°C.
- Available in 5-lead Plastic TSOT-23 package.
- Overtemperature protection.
- Low quiescent current.
- Fast turn-on and turn-off propagation delays.
Applications
The LT8309ES5#TRMPBF is suitable for a variety of applications, including:
- Power supplies using flyback topologies.
- DC-DC converters requiring high efficiency.
- Industrial power systems.
- Consumer electronics power management.
- Automotive power systems.
Q & A
- What is the primary function of the LT8309ES5#TRMPBF?
The LT8309ES5#TRMPBF is a secondary-side synchronous rectifier driver designed to replace the output rectifier diode in flyback topology power conversion circuits. - What is the operating temperature range of the LT8309ES5#TRMPBF?
The operating junction temperature range is –40°C to 125°C. - What package type is the LT8309ES5#TRMPBF available in?
The component is available in a 5-lead Plastic TSOT-23 package. - What are the key benefits of using the LT8309ES5#TRMPBF?
The key benefits include high efficiency, reduced power losses, and low quiescent current. - Does the LT8309ES5#TRMPBF have overtemperature protection?
Yes, the LT8309ES5#TRMPBF includes overtemperature protection. - What is the typical quiescent current of the LT8309ES5#TRMPBF?
The typical quiescent current is 345 µA when not switching and INTVCC = 8V. - What are the typical turn-on and turn-off propagation delays?
The typical turn-on propagation delay is 31 ns, and the typical turn-off propagation delay is 26 ns. - What are the pull-up and pull-down resistances of the GATE driver output?
The pull-up resistance is 2.7 Ω, and the pull-down resistance is 0.8 Ω. - Can the LT8309ES5#TRMPBF be used in automotive applications?
Yes, it can be used in automotive power systems due to its wide operating temperature range and high efficiency. - Where can I find more detailed specifications for the LT8309ES5#TRMPBF?
You can find detailed specifications in the datasheet available on the Analog Devices website or through distributors like Digi-Key and Mouser Electronics.
