Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
ACTIVE (Last Updated: 1 week ago) |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
20-WFBGA, DSBGA |
Number of Pins |
20 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e1 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
20 |
ECCN Code |
EAR99 |
Type |
DC DC Regulator |
Terminal Finish |
Tin/Silver/Copper (Sn/Ag/Cu) |
Applications |
Backlight |
Subcategory |
Display Drivers |
Terminal Position |
BOTTOM |
Terminal Form |
BALL |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Supply Voltage |
3.6V |
Frequency |
500kHz 4MHz |
Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
Base Part Number |
LM3639 |
Number of Outputs |
4 |
Qualification Status |
Not Qualified |
Power Supplies |
3.6V |
Number of Channels |
2 |
Max Supply Voltage |
5.5V |
Min Supply Voltage |
2.5V |
Max Supply Current |
2mA |
Voltage - Output |
40V |
Topology |
Step-Up (Boost) |
Output Characteristics |
CONSTANT-CURRENT |
Output Current per Channel |
1.5A |
Input Characteristics |
STANDARD |
Current - Output / Channel |
30mA 750mA 1.5A |
Internal Switch(s) |
Yes |
Dimming |
PWM |
Number of Segments |
16 |
Switching Frequency |
500kHz |
Voltage - Supply (Min) |
2.5V |
Multiplexed Display Capability |
NO |
Data Input Mode |
SERIAL |
Height |
675μm |
Length |
0m |
Width |
0m |
Thickness |
420μm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
LM3639AYFQT Overview
To save board space, it uses the 20-WFBGA, DSBGA package. For the design of these LED drivers, 4 outputs are used.It is possible to mount the led driver using Surface Mount.As a DC DC Regulator, it has high efficiency and reliability.LED drivers capable of operating at -40°C~85°C TA can be used.The benefits it provides to Backlight are considerable.500kHz 4MHz is the frequency in which it operates.It is designed to work with 20 terminations.A configuration of this chip is made up of 20 pins.Undetermined failures can occur if the voltage supply is below 2.5V.The number of segments is estimated to be 16.It is mounted in the way of Surface Mount.LM3639 is the base part number for this LED driver.The supply voltage of 5.5V is an acceptable maximum value.40V is the voltage output.Additionally, it is categorized into Display Drivers according to its characteristics.As a result, it is designed to operate at a minimal voltage of 2.5V to ensure the most efficiency possible.It is possible to provide high efficiency when the maximal supply current is less than 2mA.Having the switching frequency at 500kHz enables this electronic component to perform at its best.It is currently possible to transmit over 2 channels.
LM3639AYFQT Features
Available in the 20-WFBGA, DSBGA package
Operating temperature of -40°C~85°C TA
Frequency of 500kHz 4MHz
Supply voltage of 3.6V
Switching frequency of 500kHz
LM3639AYFQT Applications
There are a lot of Texas Instruments LM3639AYFQT LED Driver ICs applications.
- Gallery lighting
- Street lighting
- White LED Backlight for portable equipment
- Flicker-free LED Lighting using R1580N
- LED backlight driver for LCD displays for portable equipment
- High-end retail lighting
- Panel lighting
- Industrial LED Lighting: Image Recognition Devices
- Constant Voltage Power Source for portable equipment
- Medical surgery lighting