Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
8-WFDFN Exposed Pad |
Number of Pins |
8 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e0 |
Pbfree Code |
no |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
8 |
ECCN Code |
EAR99 |
Type |
DC DC Regulator |
Terminal Finish |
Tin/Lead (Sn/Pb) |
Applications |
Backlight |
Terminal Position |
DUAL |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Frequency |
1.2MHz |
Base Part Number |
LM3557 |
Pin Count |
8 |
Number of Outputs |
1 |
Output Voltage |
26V |
Operating Supply Voltage |
7.5V |
Input Voltage-Nom |
3.6V |
Input Voltage (Min) |
2.7V |
Topology |
Step-Up (Boost) |
Control Mode |
CURRENT-MODE |
Control Technique |
PULSE WIDTH MODULATION |
Current - Output / Channel |
800mA Switch |
Internal Switch(s) |
Yes |
Number of Segments |
5 |
Switching Frequency |
1.25MHz |
Voltage - Supply (Min) |
2.7V |
Width |
3mm |
Radiation Hardening |
No |
RoHS Status |
Non-RoHS Compliant |
Lead Free |
Contains Lead |
LM3557SDX-2 Overview
Using its 8-WFDFN Exposed Pad package, it is possible to save board space. This LED driver has 1 outputs.The mounting method is Surface Mount.When it emerges as a DC DC Regulator, it shows high-performance and reliability.It is possible for the led driver ic to operate normally at -40°C~85°C TA.There are considerable benefits for Backlight.As a result, it operates in accordance with the frequency of 1.2MHz.In this case, the terminations are set to 8.It has a base configuration of 8 pins.A voltage supply less than 2.7V will cause undetermined failures.There are estimated to be 5 segments.The mount is in the direction of Surface Mount.There is a base part number LM3557 for this LED driver.This device contains 8 pins.It is necessary to use 7.5V voltage to power systems.As long as the switching frequency is maintained at 1.25MHz, this electronic component is able to perform all of its functions properly.This device produces a voltage of 26V as its output.The circuit is assigned 3.6V volts when the device is in operation.Working with an input voltage higher than or equal to 2.7V brings great convenience to its operation.
LM3557SDX-2 Features
Available in the 8-WFDFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 1.2MHz
Operating with the supply voltage of 7.5V
Switching frequency of 1.25MHz
Output voltage of 26V
LM3557SDX-2 Applications
There are a lot of Texas Instruments LM3557SDX-2 LED Driver ICs applications.
- Architectural lighting
- LED Lightings for Industrial Equipment
- General lighting
- General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
- Flicker-free LED Lighting using R1580N
- Down lights
- Linear fluorescent
- Ultraviolet (UV) and Infrared (IR) Irradiation Devices
- Auxiliary lights for on-vehicle cameras
- OLED power supply for portable equipment