Key facts
- Brand
- Linear Technology
- Model
- LT3750
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-05
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LINEAR dn405f handbook
This document is a design note (DN405) detailing the use of the LT3750, a current mode flyback controller optimized for controlled current charging. It highlights the device's ability to safely charge various energy storage devices, ranging from large high-voltage capacitors used in photoflash equipment and emergency beacons to smaller capacitors for diagnostic testers.
Read onlineLinear Technology LT3750 specifications
| Input voltage range | 3 V to 24 V |
|---|---|
| Output voltage adjustability | User‑adjustable |
| Quiescent current (VCC, CHARGE=5 V) | 1.6 mA to 2.5 mA |
Source: Linear Technology LT3750 Capacitor Charger Controller Datasheet
All Linear Technology LT3750 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How long does it take to charge a 400µF capacitor to 300V from a 12V source?
The LT3750 charges the capacitor in about 0.92 seconds.
From: LINEAR dn405f handbook
What is the maximum voltage the CHARGE and DONE signals can tolerate?
Both signals are compatible with voltages as high as 24V.
From: LINEAR dn405f handbook
What transformer turns ratio is recommended for the LT3750?
A 1:10 primary‑to‑secondary turns ratio is recommended for the flyback transformer.
From: Linear Technology LT3750 Capacitor Charger Controller Datasheet
What reverse‑recovery time should the output diode have?
Choose a diode with a reverse‑recovery time of less than 100 ns.
From: Linear Technology LT3750 Capacitor Charger Controller Datasheet