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Overview
| Topology | Flyback Converter |
| Input voltage | 3-24 V |
| Switching frequency | 100-300 kHz |
| Output 1 | 14 V |
| IC revision | A |
Description
The LT® 3750 is a flyback converter designed to rapidly charge large capacitors to a user-adjustable target voltage. A patented boundary mode control scheme minimizes transition losses and reduces transformer size. The transformer turns ratio and two external resistors easily adjust the output voltage. A low 78mV current sense accurately limits peak switch current and also helps to maximize efficiency. With a wide input voltage range, the LT3750 can operate from a variety of power sources. A typical application can charge a 100µF capacitor to 300V in less than 300ms.The CHARGE pin gives full control of the LT3750 to the user. The DONE pin indicates when the capacitor has reached its programmed value and the part has stopped charging.
Features
- Charges Any Size Capacitor
- Easily Adjustable Output Voltage
- Drives High Current NMOS FETs
- Primary-Side Sense—No Output Voltage Divider Necessary
- Wide Input Range: 3V to 24V
- Drives Gate to VCC – 2V
- Available in 10-Lead MS Package.Remarks:-ReferTable 1. Recommenddeed transformerPage no 8
Typical applications
- Professional Photoflash Systems
- High Voltage Power Supply
- Electric Fences
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | VIN | VOut1(V) | IOut1(mA) | L(µH) | n | ISAT(A) | LS(µH) | VT(V (AC)) | Size | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWE-FB 3751 Flyback Transformer for LT3751, 3 - 24 V (DC), 300 V | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FB 3751 Flyback Transformer for LT3751 | Input Voltage 3 - 24 V (DC) | Output Voltage 1300 V | Output Current 1150 mA | Inductance10 µH | Turns Ratio1:10 | Saturation Current5 A | Leakage Inductance0.05 µH | Insulation Test Voltage1000 V (AC) | SizeEFD20 | –Check availability | ||
| SPECWE-FB 3751 Flyback Transformer for LT3751, 3 - 24 V (DC), 300 V | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FB 3751 Flyback Transformer for LT3751 | Input Voltage 3 - 24 V (DC) | Output Voltage 1300 V | Output Current 1150 mA | Inductance10 µH | Turns Ratio1:10 | Saturation Current10 A | Leakage Inductance0.3 µH | Insulation Test Voltage1000 V (AC) | SizeEFD20 | –Check availability | ||
750032050 | SPECFlyback Transformer, –, – | Availability – | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – | – | – | –Check availability |
Availability Forecast
WE item number Packaging unitsLead time
––– weeks
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
There is no forecast for this quantity request.
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