Datasheet4U Logo Datasheet4U.com

SC445 - High Efficiency Integrated Driver

Description

The SC445 is a high-efficiency multiple string WLED driver with an integrated boost converter.

It operates over a wide input range from 4.5V to 27V and can sustain fast Vin transient up to 5V/µs.

It can drive up to forty WLEDs in 4 strings with current up to 150mA per string.

Features

  • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs.

📥 Download Datasheet

Datasheet Details

Part number SC445
Manufacturer SEMTECH
File Size 301.87 KB
Description High Efficiency Integrated Driver
Datasheet download datasheet SC445 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
SC440 High Effi ciency Integrated Driver Semtech Corporation
SC440A High Efficiency Integrated Driver Semtech Corporation
SC441 High Effi ciency Integrated Driver Semtech Corporation
SC441A High Efficiency Integrated Driver Semtech Corporation
SC4431 SHUNT REGULATOR WITH OPEN COLLECTOR OR OUTPUT Semtech Corporation

Other Datasheets by SEMTECH

Part Number Description
SC410A Step-Down Regulator
SC4150 Negative Voltage Hot Swap Controller
SC417 Integrated FET Regulator
SC419 DC-DC Converter
SC4201 Multi Phase Link Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SC445 POWER MANAGEMENT Features                  High Efficiency Integrated Driver for 4-Strings of 150mA LEDs Description The SC445 is a high-efficiency multiple string WLED driver with an integrated boost converter. It operates over a wide input range from 4.5V to 27V and can sustain fast Vin transient up to 5V/µs. It can drive up to forty WLEDs in 4 strings with current up to 150mA per string. The stringto-string current matching is 2% typical, 3% maximum. The overall efficiency is greater than 90% due to the low current sense voltage and a low-impedance internal power switch. The wide PWM dimming range boasts a ratio of 500: 1. The 700KHz switching frequency enables the user to optimize the external component sizes for efficiency.
Published: |