Key facts
- Brand
- Linear Technology
- Model
- LT3466
- Category
- Other Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-05
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LINEAR dn1010f handbook
The document is a design note and datasheet for the Linear Technology LT3466, a dual channel LED driver. It details the device's ability to drive asymmetric LED strings from Li-Ion or adapter inputs, featuring integrated switches, Schottky diodes, and adjustable switching frequency.
Key features highlighted include soft-start, open LED protection, DC dimming control via CTRL pins (supporting both voltage and filtered PWM), and an efficiency above 80% at 20mA. The text provides circuit examples for driving 2-4 LEDs and 10-10 LEDs, along with efficiency graphs.
Linear Technology LT3466 specifications
| Max white LEDs driven | 20 |
|---|---|
| Architecture type | constant-current, step-up |
| Input voltage range | 3.6V to 8V (Li-Ion) |
| Output current per string | up to 12mA |
| Operating frequency range | 200kHz to 2MHz |
| Internal power switches rating | 44V |
Source: LINEAR dn1010f handbook
All Linear Technology LT3466 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum number of white LEDs the LT3466 can drive?
The device is capable of driving up to 20 white LEDs with a programmable constant current.
From: LINEAR dn1010f handbook
Does the LT3466 support DC dimming?
Yes, it features single pin shutdown and dimming control for each converter via CTRL1 and CTRL2 pins.
From: LINEAR dn1010f handbook
What is the input voltage range of the LT3466?
The LT3466 operates from 2.7 V up to 24 V.
What is the typical efficiency of the LT3466?
Typical efficiency is about 81 % when driving 16 white LEDs at 15 mA.
What is the maximum input voltage the LT3466-1 can tolerate?
The device is rated for a maximum input voltage of 24 V.
From: Linear Technology LT3466-1 Dual Switching Regulator Datasheet
How many white LEDs can be driven by the LT3466-1?
It can drive up to ten white LEDs in series.
From: Linear Technology LT3466-1 Dual Switching Regulator Datasheet