LT3491EDC#TRPBF Linear Technology, LT3491EDC#TRPBF Datasheet - Page 16

• Manufacturer Part Number: LT3491EDC#TRPBF
• Description: IC LED DRIVER WHITE BCKLGT 6-DFN
• Manufacturer: Linear Technology
• Type: Backlight, White LEDr

Specifications of LT3491EDC#TRPBF

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 2.3MHz
• Voltage - Supply: 2.5 V ~ 12 V
• Mounting Type: Surface Mount
• Package / Case: 6-DFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 200mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -

TYPICAL APPLICATIO
LT3491
RELATED PARTS
PART NUMBER
LT1618
LT1932
LT1937
LTC
LTC3200-5
LTC3201
LTC3202
LTC3205
LT3465/LT3465A
LT3466/LT3466-1
LT3486
ThinSOT is a trademark of Linear Technology Corporation.
16
3V TO 5V
®
3200
V
IN
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
10µH
C1
1µF
C1: TAIYO YUDEN LMK212BJ105MD
C2: TAIYO YUDEN GMK316BJ105ML
L1: MURATA LQH32CN100
Li-Ion Driver for Six White LEDs
L1
DESCRIPTION
Constant Current, Constant Voltage 1.24MHz, High Efficiency
Boost Regulator
Constant Current, 1.2MHz, High Efficiency White LED
Boost Regulator
Constant Current, 1.2MHz, High Efficiency White LED
Boost Regulator
Low Noise, 2MHz Regulated Charge Pump White LED Driver
Low Noise, 2MHz Regulated Charge Pump White LED Driver
Low Noise, 1.7MHz Regulated Charge Pump White LED Driver
Low Noise, 1.5MHz Regulated Charge Pump White LED Driver
High Efficiency, Multidisplay LED Controller
Constant Current, 1.2MHz/2.7MHz, High Efficiency White LED
Boost Regulator with Integrated Schottky Diode
Dual Full Function, 2MHz Diodes White LED Step-Up Converter
with Built-In Schottkys
Dual 1.3A White LED Converter with 1000:1 True Color PWM
Dimming
●
FAX: [phone]
DIMMING CONTROL
V
SW
SHUTDOWN AND
IN
LT3491
CTRL
GND
CAP
LED
U
●
www.linear.com
R
10Ω
SENSE
3491 TA06a
C2
1µF
COMMENTS
Up to 16 White LEDs, V
I
Up to 8 White LEDs, V
I
Up to 4 White LEDs, V
I
Up to 6 White LEDs, V
MS Package
Up to 6 White LEDs, V
ThinSOT Package
Up to 6 White LEDs, V
MS Package
Up to 8 White LEDs, V
MS Package
Up to 4 (Main), 2 (Sub) and RGB, V
I
Up to 6 White LEDs, V
I
Up to 20 White LEDs, V
DFN, TSSOP-16 Packages
Drives Up to 16 100mA White LEDs. V
V
Q
Q
Q
Q
Q
OUT(MAX)
= 1.8mA, I
= 1.2mA, I
= 1.9mA, I
= 50µA, I
= 1.9mA, I
80
75
70
65
60
55
50
45
40
0
V
6 LEDs
= 36V, DFN, TSSOP Packages
IN
SD
= 3.6V
SD
SD
SD
SD
< 1µA, 24-Lead QFN Package
< 1µA, MS Package
< 1µA, ThinSOT
< 1µA, ThinSOT/SC70 Packages
< 1µA, ThinSOT Package
5
LED CURRENT (mA)
IN
IN
IN
IN
IN
IN
IN
Efficiency
IN
IN
: 1V to 10V, V
: 2.5V to 10V, V
: 2.7V to 4.5V, I
: 2.7V to 4.5V, I
: 2.7V to 4.5V, I
: 2.7V to 4.5V, I
: 2.7V to 16V, V
: 1.6V to 18V, V
: 2.7V to 24V, V
10
© LINEAR TECHNOLOGY CORPORATION 2006
TM
Package
IN
15
: 2.8V to 4.5V,
OUT(MAX)
IN
LT 0406 • PRINTED IN THE USA
OUT(MAX)
Q
Q
Q
Q
OUT(MAX)
: 2.5V to 24V,
OUT(MAX)
OUT(MAX)
= 8mA, I
= 8mA, I
= 6.5mA, I
= 5mA, I
3491 TA06b
20
= 34V,
= 34V,
= 34V,
SD
SD
SD
= 34V,
= 39V,
SD
< 1µA,
< 1µA,
< 1µA,
< 1µA,
3491fa