| Parameters |
| Factory Lead Time |
8 Weeks |
| Mount |
Surface Mount |
| Mounting Type |
Surface Mount |
| Package / Case |
8-UFDFN Exposed Pad |
| Number of Pins |
8 |
| Operating Temperature |
-40°C~85°C TA |
| Packaging |
Tape & Reel (TR) |
| Published |
2008 |
| JESD-609 Code |
e3 |
| Pbfree Code |
yes |
| Part Status |
Obsolete |
| Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
| Number of Terminations |
8 |
| ECCN Code |
EAR99 |
| Type |
DC DC Regulator |
| Terminal Finish |
MATTE TIN |
| Applications |
Backlight |
| Terminal Position |
DUAL |
| Terminal Form |
NO LEAD |
| Peak Reflow Temperature (Cel) |
260 |
| Number of Functions |
1 |
| Terminal Pitch |
0.5mm |
| Frequency |
800kHz |
| Time@Peak Reflow Temperature-Max (s) |
30 |
| Base Part Number |
SC454 |
| Pin Count |
8 |
| Number of Outputs |
1 |
| Qualification Status |
Not Qualified |
| Input Voltage-Nom |
7.2V |
| Max Supply Voltage |
12V |
| Voltage - Output |
5V~38V |
| Topology |
Step-Up (Boost) |
| Control Mode |
CURRENT-MODE |
| Output Current per Channel |
30mA |
| Control Technique |
PULSE WIDTH MODULATION |
| Current - Output / Channel |
30mA |
| Internal Switch(s) |
Yes |
| Dimming |
PWM |
| Voltage - Supply (Min) |
2.8V |
| Height Seated (Max) |
0.6mm |
| Length |
2mm |
| Width |
2mm |
| RoHS Status |
RoHS Compliant |
| Lead Free |
Lead Free |
SC4540ULTRT Overview
In order to save board space, the led driver uses the 8-UFDFN Exposed Pad package. Typically, LED drivers have 1 outputs.In order to mount the led light driver, Surface Mount is used.This emerges as a DC DC Regulator with high efficiency and reliability.When the temperature is -40°C~85°C TA, it can work normally.A number of benefits are available to Backlight.The system operates at a frequency of 800kHz.It operates with terminations of 8.This LED driver is configured with a base of 8 pins.If the voltage supply is below 2.8V, undetermined failures may occur.There is a device mounted on the Surface Mount.Under the base part number SC454, you'll find this LED driver.The supply voltage of 12V is an acceptable maximum value.There is 5V~38V voltage output from this device.There are 8 pins on it.The circuit is assigned 7.2V volts when the device is in operation.
SC4540ULTRT Features
Available in the 8-UFDFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 800kHz
SC4540ULTRT Applications
There are a lot of Semtech Corporation SC4540ULTRT LED Driver ICs applications.
- LED backlight driver for LCD displays for Tablets and Note PCs
- General lighting
- Street lighting
- LED headlights
- Museum lighting
- Medical surgery lighting
- General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
- Down lighting
- Other Electronic Devices
- Power source for accessories such as car audios, car navigation systems, and ETC systems