SC5014AMLTRT Semtech Corporation, SC5014AMLTRT Datasheet

SC5014AMLTRT

Manufacturer Part Number

SC5014AMLTRT

Description

MLPQ 20/4*42CH 200MA/CH LED DRIVER

Manufacturer

Semtech Corporation

Datasheet

1.SC5014AMLTRT.pdf (27 pages)

Specifications of SC5014AMLTRT

Pack_quantity

3000

Comm_code

85423990

Lead_time

Current page: 1 of 27
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POWER MANAGEMENT

Revision 2.0

Features



Applications



Typical Application Circuit



Input Voltage — 4.5V to 27V

Output Voltage — Up to 50V

Step-up (Boost) Controller

Linear Current Sinks

PWM Dimming

5-Bits Analog Dimming

Protection Features

4mm X 4mm 20-pin QFN Package

Ultrabooks

Display Backlighting

Backlighting for Mid-Size Displays



C Interface

Fault Status — Open/Short LED, UVLO, OTP

Direct PWM Dimming, 000: at KHz

Input Dimming Frequency 00Hz-30kHz

Ultra-Fast Transient Response (<00μs)

Programmable Switching Frequency

2 Strings, up to 240mA/String

Current Matching ±%

Current Accuracy ±2%

Open/Shorted LED(s) and adjustable OVP

Over-Temperature and UVLO Shutdown Protection

, All-in-One PCs, Monitors, Automotive-

F o r I

P W M I

C C

F L T

E N

= 4 .5 to 5 .5 V

= 4 .5 to 2 7 V

R 6

C 3

R 3

R 2

R 1 0

R 1 1

R 5

R 1

U V L O

P W M I

V C C

F L T

E N

S D A

S C L

S C P

F S E T

IS E T

R E F

S C 5 0 1 4 A

High Efficiency 2-Channel HB LED Driver with

L 1

Description

The SC504A is a 2-channel, highly integrated, high-effi-

ciency 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), direct PWM dimming,

analog dimming, a flexible output configuration, an I

interface, and numerous protection features.

The SC504A exhibits 2% to 4% higher efficiency when

using the same size inductors as existing LED drivers. But,

unlike existing devices, it can also operate with inductors

that are up to 0x smaller without sacrificing efficiency.

This part can also use very low-profile inductors (as small

as 2.2µH, mm height), which allows LED drivers to be

built directly into the LCD panel to enable ultra-thin

displays.

The boost controller, with programmable switching

frequency from 200kHz to 2.2MHz, maximizes efficiency

by dynamically minimizing the output voltage while

maintaining LED string current accuracy. It provides

excellent line and load response with no external com-

pensation components. An external resistor adjusts the

current from 40-240mA per string.

E -P A D

P G N D

N D R V

O V P

IO 2

IO 1

IO 2

C S

C Interface and Direct PWM Dimming

Q 1

R 4

R 9

D 1

O U T

R 8

u p to 5 0 V

C 5

2 4 0 m A /S trin g

U p to

SC5014A

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