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SC5010H Datasheet Preview

SC5010H Datasheet

High Efficiency 8-Channel LED Driver

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SC5010Hwww.DataSheet.co.kr
POWER MANAGEMENT
High Efficiency 8-Channel LED Driver with
I2C Interface and Phase-Shifted PWM Dimming
Features
Description
VIN Range — 4.5V to 27V, VOUT Range — Up to 50V
Step-up (Boost) Controller
Ultra-Fast Transient Response
Integrated Soft-start
Programmable Switching Frequency
Linear Current Sinks
8 Strings, up to 50mA/String
Current Matching ±1%
Current Accuracy ±2%
PWM Dimming
String-by-String Phase Shifting
Input Dimming Frequency 100Hz-30kHz
User Selectable 9 or 10 Bits Dimming Resolution
Optional Synchronization to VSYNC/HSYNC Signal
Optional External p-MOSFET Disconnect Switch
True Load Disconnect and Inrush Current Limiting
I2C Interface
Fault Status — Open/Short LED, UVLO, OTP
Device Control — SYNC Freq, PLL Setting
Protection Features
Open/Shorted LED(s) and adjustable OVP
Over-Temperature and UVLO Shutdown Protection
4 X 4 X 0.6 (mm) 28-pin QFN Package
The SC5010H is an 8-channel high-precision, high-efficiency
step-up (Boost) LED driver for backlight applications. It fea-
tures wide input voltage range (4.5V to 27V) , flexible output
configuration, wide analog and PWM dimming range,
phase shifting and fading. It also features video signal syn-
chronization (VSYNC), I2C interface, and numerous protec-
tion features. An optional disconnect p-MOSFET provides
true load disconnection and inrush current limiting.
The boost controller, with programmable switching fre-
quency from 200kHz to 2.2MHz, maximizes efficiency by
dynamically minimizing the output voltage while maintain-
ing LED string current accuracy. It provides excellent line
and load response with no external compensation compo-
nents. Each linear current sink is matched within ±1% for
superb lighting uniformity, and the accuracy of each string
current is ±2%. An external resistor adjusts the current from
10-50mA per string. It also features PWM dimming resolu-
tion of 9 or 10 bits (user selectable) over dimming frequency
from 100Hz to 20kHz, synchronized to the SYNC signal or
the boost oscillator. String-by-string phase shifting reduces
the demand on the input/output capacitance, decreases
EMI, and improves dimming linearity.
Applications
Notebook PCs, UMPC, LCD Monitors, and Tablet PCs
SC5010H is available in a low-profile, thermally enhanced,
4 X 4 X 0.6(mm) QFN 28-pin package.
Typical Application Circuit
C2
VIN=4.5 to 27V
Q2
(O p tio n a l)
VCC = 4.5 to 5.5V
R1
R2
C1
FLT
EN
For I2C
SYNC
PWMI
R3
C3
R6 R5
R10
R11
C4 R7
L1
DRVP
V IN
DRVN
CS
SC5010H
UVLO
VCC
OVP
FLT
EN
SDA
SCL
SYNC
PWMI
BG
SCP
FSET
IS E T
CPLL
IO 1
IO 2
IO 3
IO 4
IO 5
IO 6
IO 7
IO 8
AGND
PGND
D1 VOUT up to 50V
Q1
R4
R9
C5
R8
Up to
50m A/CH
Revision 1.0
© 2011 Semtech Corporation

Datasheet pdf - http://www.DataSheet4U.net/




Semtech

SC5010H Datasheet Preview

SC5010H Datasheet

High Efficiency 8-Channel LED Driver

No Preview Available !

www.DataSheet.co.kr
SC5010H
Pin Configuration
28 27 26 25 24 23 22
VCC 1
EN 2
UVLO 3
SCP 4
BG 5
FSET 6
AGND 7
AGND
21 IO 2
20 103
19 IO 4
18 IO 5
17 IO 6
16 IO7
15 IO 8
8 9 10 11 12 13 14
Ordering Information
Device
Package
SC5010HULTRT(1)(2)
MLPQ-UT-28 4×4
SC5010HEVB
Evaluation Board
Notes:
(1) Available in tape and reel only. A reel contains 3,000 devices.
(2) Lead-free packaging only. Device is WEEE and RoHS compliant,
and halogen-free.
MLPQ-28; 4x4, EP1
θJA = 30°C/W
Marking Information
5010H
yyww
xxxxx
xxxxx
nnnn = Part Number
yyww = Date code
xxxxx = Semtech Lot No.
xxxxx = Semtech Lot No.

Datasheet pdf - http://www.DataSheet4U.net/


Part Number SC5010H
Description High Efficiency 8-Channel LED Driver
Maker Semtech
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SC5010H Datasheet PDF






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