LT3517IUF#TRPBF
ActiveFULL-FEATURED LED DRIVER WITH 1.5A SWITCH CURRENT
Deep-Dive with AI
Search across all available documentation for this part.
LT3517IUF#TRPBF
ActiveFULL-FEATURED LED DRIVER WITH 1.5A SWITCH CURRENT
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LT3517IUF#TRPBF |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 1.5 A |
| Dimming | Analog, PWM |
| Frequency [Max] | 2.5 MHz |
| Frequency [Min] | 250 kHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-WQFN Exposed Pad |
| Supplier Device Package | 16-QFN (4x4) |
| Topology | Step-Down (Buck), Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Supply (Max) | 30 V |
| Voltage - Supply (Min) [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 10.43 | |
| 10 | $ 7.10 | |||
| 25 | $ 6.24 | |||
| 100 | $ 5.25 | |||
| 250 | $ 4.85 | |||
| Digi-Reel® | 1 | $ 10.43 | ||
| 10 | $ 7.10 | |||
| 25 | $ 6.24 | |||
| 100 | $ 5.25 | |||
| 250 | $ 4.85 | |||
| Tape & Reel (TR) | 2500 | $ 4.85 | ||
Description
General part information
LT3517 Series
The LT3517 is a current mode DC/DC converter with an internal 1.5A, 45V switch specifically designed to drive LEDs. The LT3517 operates as a LED driver in boost, buck mode and buck-boost mode. It combines a traditional voltage loop and a unique current loop to operate as a constant-current source or constant-voltage source. Programmable switching frequency allows optimization of the external components for efficiency or component size. The switching frequency of LT3517 can be synchronized to an external clock signal. The LED current is externally programmable with a 100mV sense resistor. The external PWM input provides up to 5000:1 LED dimming. The CTRL pin provides further 10:1 dimming ratio.The LT3517 is available in the tiny footprint 16-lead QFN (4mm × 4mm) and the 16-pin TSSOP packages. The LT3517 provides a complete solution for both constant-voltage and constant-current applications.ApplicationsDisplay BacklightingAutomotive and Avionic LightingIlluminationScanners
Documents
Technical documentation and resources