LT3476EUHF#PBF Linear Technology, LT3476EUHF#PBF Datasheet - Page 12

• Manufacturer Part Number: LT3476EUHF#PBF
• Description: IC LED DRVR HP CONST CURR 38-QFN
• Manufacturer: Linear Technology
• Type: High Power, Constant Currentr

Specifications of LT3476EUHF#PBF

• Constant Current: Yes
• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 4
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: Color, RGB
• Frequency: 200kHz ~ 2MHz
• Voltage - Supply: 2.8 V ~ 16 V
• Voltage - Output: 2.2 V ~ 36 V
• Mounting Type: Surface Mount
• Package / Case: 38-QFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 1.5A
• Internal Switch(s): Yes
• Efficiency: 96%
• Led Driver Application: Automotive, Avionic Lighting
• No. Of Outputs: 4
• Output Current: 1.5A
• Output Voltage: 36V
• Dimming Control Type: PWM
• Rohs Compliant: Yes
• Input Voltage: 2.8V To 16V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RELATED PARTS
LT3476
TYPICAL APPLICATIO
PART NUMBER DESCRIPTION
LT1618
LTC3454
LTC3474
LT3475
LT3477
LT3479
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
2.8V TO
2.8V TO
1.5A, Constant-Current, 1.4MHz, Boost
Converter
1A Synchronous Buck-Boost LED Driver
1A (I
Driver
Dual 1.5A (I
LED Driver
3A, 42V, 3.5MHz Boost, Buck-Boost, Buck
LED Driver
3A, Full-Featured DC/DC Converter with
Soft-Start and Inrush Current Protection
PV
V
5V
5V
IN
IN
LED
), 36V, 2MHz, Step-Down LED
●
FAX: [phone]
2.2μF
LED
8 LEDS
UP TO
PWM1-4
), 36V, 2MHz, Step-Down
2.2μF
SHDN
1Ω
U
4.7μH
LED1
100mA
CAP1
SW1
CAP1-4
LED1-4
V
PWM1-4
SHDN
●
IN
www.linear.com
CAP2
LED2
Quad Boost 100mA
SW2
1Ω
4.7μH
COMMENTS
V
Package
V
DFN-10 Package
V
TSSOP-16E Package
V
I
V
and TSSOP-20E Packages
V
and TSSOP Packages
SD
IN(MIN)
IN(MIN)
IN(MIN)
IN(MIN)
IN(MIN)
IN(MIN)
< 1μA, TSSOP-20E Package
2.2μF
100mA
= 5V, V
= 2.7V, V
= 4V, V
= 4.0V, V
= 2.5V, V
= 2.5V, V
LT3476
GND
IN(MAX)
IN(MAX)
×
IN(MAX)
IN(MAX)
IN(MAX)
IN(MAX)
2.2μF
8LED Driver
2.2μF
= 18V, V
= 36V, V
= 5.5V, V
= 36V, V
= 25V, V
= 24V, V
OUT(MAX)
OUT(MAX)
1Ω
SW3
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
4.7μH
LED3
100mA
CAP3
VADJ1-4
VC1-4
SW4
3476 TA04
= 36V, Dimming = Analog/PWM, I
= 13.5V, 400:1 True Color PWM, I
REF
R
= 13.5V, Dimming = 3000:1 True Color PWM,
= 40V, Dimming = Analog/PWM, I
= 40V, Dimming = Analog/PWM, I
= 5.5V, Dimming = 4-Levels of Adj, I
CAP4
T
LED4
1Ω
4.7μH
© LINEAR TECHNOLOGY CORPORATION 2006
21k
2.2μF
100mA
1.05V
LT 0707 REV A • PRINTED IN USA
47nF
5k
100k
SD
SD
SD
SD
< 1μA,
< 1μA, MS10
< 1μA, QFN
< 1μA, DFN
SD
< 1μA,
3476fa