SC5014MLTRT集成電路（IC）的LED驅(qū)動器規(guī)格書PDF中文資料

SC5014MLTRT屬于集成電路（IC）的LED驅(qū)動器。由Semtech Corporation制造生產(chǎn)的SC5014MLTRTLED 驅(qū)動器器件屬于 LED 驅(qū)動器電源管理集成電路 (PMIC) 系列，可通過標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪ζ骷ぷ鼽c進(jìn)行外部控制，可在照明應(yīng)用中用于實現(xiàn)調(diào)光功能。

Description

The SC504 is a 4-channel, highly integrated, high-efficiency step-up (boost) HB LED driver designed to reduce

the thickness of mid-size LCD displays. It features a wide input voltage range (4.5V to 27V), phase-shifted PWM

dimming, analog dimming, a flexible output configuration, an I2C interface, and numerous protection features.

Features

Input Voltage — 4.5V to 27V

Output Voltage — Up to 50V

Step-up (Boost) Controller

Ultra-Fast Transient Response (<00μs)

Programmable Switching Frequency

Linear Current Sinks

4 Strings, up to 20mA/String

Current Matching ±

Current Accuracy ±2

PWM Dimming

String-by-String Phase Shifting

Input Dimming Frequency 00Hz-30kHz

User Selectable 9 or 0-Bits Dimming Resolution

5-Bits Analog Dimming

I2C Interface

Fault Status — Open/Short LED, UVLO, OTP

Device Control: PLL Setting

Protection Features

Open/Shorted LED(s) and adjustable OVP

Over-Temperature and UVLO Shutdown Protection

4mm X 4mm 20-pin QFN Package

Applications

UltrabooksTM, All-in-One PCs, Monitors, Automotive Display Backlighting

Backlighting for Mid-Size Displays