Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 1 week ago) |
Mounting Type |
Surface Mount |
Package / Case |
20-WFQFN Exposed Pad |
Surface Mount |
YES |
Number of Pins |
20 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2009 |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
20 |
ECCN Code |
EAR99 |
Type |
DC DC Regulator |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Switching Regulator or Controllers |
Terminal Position |
QUAD |
Terminal Form |
NO LEAD |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Terminal Pitch |
0.5mm |
Frequency |
200kHz~3.5MHz |
Time@Peak Reflow Temperature-Max (s) |
30 |
Base Part Number |
LT3477 |
Pin Count |
20 |
Number of Outputs |
1 |
Qualification Status |
Not Qualified |
Input Voltage-Nom |
2.5V |
Max Supply Voltage |
25V |
Min Supply Voltage |
2.5V |
Topology |
Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) |
Min Input Voltage |
2.3V |
Control Mode |
CURRENT-MODE |
Output Current-Max |
5A |
Control Technique |
PULSE WIDTH MODULATION |
Switcher Configuration |
BUCK-BOOST |
Current - Output / Channel |
3A Switch |
Internal Switch(s) |
Yes |
High Level Output Current |
10μA |
Low Level Output Current |
10μA |
Dimming |
PWM |
Number of Segments |
4 |
Height Seated (Max) |
0.8mm |
RoHS Status |
ROHS3 Compliant |
LT3477EUF#TRPBF Overview
Its 20-WFQFN Exposed Pad package is used to save board space. In LED drivers, the outputs are all set to 1.It is mounted using Surface Mount.When it emerges as a DC DC Regulator, it performs extremely well and is highly reliable.-40°C~85°C TA is a valid operating temperature for the led driver.Using the frequency of 200kHz~3.5MHz, it operates.There are 20 terminations that are designed to operate with it.It has a base configuration of 20 pins.Based on our estimates, there are 4 segments.Under the base part number LT3477, you will find this LED driver.An acceptable maximum value for the supply voltage is 25V.In this device, there are 20 pins.Further, it can be classified as Switching Regulator or Controllers based on its characteristics.It operates with the minimal input voltage of 2.3V.The system operates at a minimum supply voltage of 2.5V in order to achieve maximum efficiency.A circuit operated by the device has 2.5V volts.It is important that the output current is not greater than 5A.
LT3477EUF#TRPBF Features
Available in the 20-WFQFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 200kHz~3.5MHz
LT3477EUF#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LT3477EUF#TRPBF LED Driver ICs applications.
- Scanners and Handy Terminals
- LED Lighting PFCs, Linear Dimmable
- LED backlight driver for LCD displays for portable equipment
- General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
- Ultraviolet (UV) and Infrared (IR) Irradiation Devices
- Auxiliary lights for on-vehicle cameras
- Medical surgery lighting
- Replacement lamps
- Architectural lighting
- Museum lighting