Parameters |
Factory Lead Time |
1 Week |
Mounting Type |
Surface Mount |
Package / Case |
20-WFQFN Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~125°C TA |
Packaging |
Tube |
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 |
JESD-30 Code |
S-PQCC-N20 |
Number of Outputs |
1 |
Qualification Status |
Not Qualified |
Input Voltage-Nom |
2.5V |
Input Voltage (Min) |
2.5V |
Topology |
Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) |
Control Mode |
CURRENT-MODE |
Output Current-Max |
5A |
Input Voltage (Max) |
25V |
Control Technique |
PULSE WIDTH MODULATION |
Switcher Configuration |
BUCK-BOOST |
Current - Output / Channel |
3A Switch |
Internal Switch(s) |
Yes |
Dimming |
PWM |
Voltage - Supply (Max) |
25V |
Voltage - Supply (Min) |
2.5V |
Height Seated (Max) |
0.8mm |
Length |
4mm |
Width |
4mm |
RoHS Status |
ROHS3 Compliant |
LT3477IUF#PBF Overview
The board's 20-WFQFN Exposed Pad package saves space. 1 outputs are designed into LED drivers.Mounting is done according to the Surface Mount method.In this case, the DC DC Regulator emerges as highly efficient and reliable.-40°C~125°C TA is a valid operating temperature for the led driver.Frequency 200kHz~3.5MHz is the basis of operation.It operates using 20 terminations.A voltage supply below 2.5V may cause undetermined failures.There is a base part number LT3477 for this LED driver.20 pins are included in it.An optimal value of supply voltage is 25V.In addition to Switching Regulator or Controllers, it is also classified by its characteristics.While operating the device, the circuit has 2.5V volts.When the input voltage is greater than or equal to 2.5V, the operation of the device is greatly facilitated.Keeping the input voltage below 0 ensures high stability.Output current should not exceed 5A.
LT3477IUF#PBF Features
Available in the 20-WFQFN Exposed Pad package
Operating temperature of -40°C~125°C TA
Frequency of 200kHz~3.5MHz
LT3477IUF#PBF Applications
There are a lot of Linear Technology/Analog Devices LT3477IUF#PBF LED Driver ICs applications.
- Scanners and Handy Terminals
- Amusement Machines
- Portable lighting
- Replacement lamps
- Sports Facility Lighting
- LED Lightings for Industrial Equipment
- General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
- Linear fluorescent
- General lighting
- Gallery lighting