Overview
The LT3798EMSE#TRPBF is a constant-voltage/constant-current isolated flyback controller produced by Analog Devices Inc. This device combines active power factor correction (PFC) with the advantage of not requiring an opto-coupler for output regulation. It is designed for high-efficiency power conversion and is particularly suited for applications where both voltage and current regulation are necessary.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 10 | 38 | 38 | V |
| Operating Temperature Range | -40 | 125 | °C | |
| Quiescent Current (VEN/UVLO = 0.2V) | 1.5 | mA | ||
| Gate Driver Output Rise Time (CL = 3300pF, 10% to 90%) | 18 | ns | ||
| Gate Driver Output Fall Time (CL = 3300pF, 90% to 10%) | 18 | ns | ||
| Gate Output Low (VOL) | 0.01 | V | ||
| Gate Output High (VOH) | INTVCC - 50mV | V |
Key Features
- Constant-voltage and constant-current regulation with ±5% typical accuracy.
- No opto-coupler required for output regulation.
- Active power factor correction (PFC) for low harmonic distortion.
- Energy Star compliant with less than 0.5W no-load operation.
- Thermally enhanced 16-lead MSOP package.
- Cable drop compensation.
- Current limit switches.
Applications
The LT3798EMSE#TRPBF is suitable for a variety of applications, including:
- High-efficiency power supplies.
- LED drivers requiring both voltage and current regulation.
- Industrial power systems.
- Consumer electronics with stringent power factor correction requirements.
Q & A
- What is the primary function of the LT3798EMSE#TRPBF? The LT3798EMSE#TRPBF is a constant-voltage/constant-current isolated flyback controller with active power factor correction.
- Does the LT3798EMSE#TRPBF require an opto-coupler for output regulation? No, it does not require an opto-coupler for output regulation.
- What is the input voltage range of the LT3798EMSE#TRPBF? The input voltage range is from 10V to 38V.
- What is the operating temperature range of the LT3798EMSE#TRPBF? The operating temperature range is from -40°C to 125°C.
- Is the LT3798EMSE#TRPBF Energy Star compliant? Yes, it is Energy Star compliant with less than 0.5W no-load operation.
- What package type is the LT3798EMSE#TRPBF available in? It is available in a thermally enhanced 16-lead MSOP package.
- What are some typical applications for the LT3798EMSE#TRPBF? Typical applications include high-efficiency power supplies, LED drivers, industrial power systems, and consumer electronics.
- What is the gate driver output rise and fall time of the LT3798EMSE#TRPBF? The gate driver output rise and fall time is 18ns each.
- What is the gate output low (VOL) and high (VOH) voltage of the LT3798EMSE#TRPBF? The gate output low (VOL) is 0.01V, and the gate output high (VOH) is INTVCC - 50mV.
- Where can I find more detailed specifications for the LT3798EMSE#TRPBF? Detailed specifications can be found in the datasheet available on the Analog Devices website or through distributors like LCSC and Digi-Key.
