DC1319B-A Linear Technology, DC1319B-A Datasheet - Page 24

• Manufacturer Part Number: DC1319B-A
• Description: BOARD EVAL LED DRIVER LT3756
• Manufacturer: Linear Technology

Specifications of DC1319B-A

• Current - Output / Channel: 500mA
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 100V
• Features: Dimmable
• Voltage - Input: 8 ~ 80V
• Utilized Ic / Part: LT3756
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DC1319A-A; DC1319A-A

LT3756/LT3756-1/LT3756-2
Typical applicaTion
relaTeD parTs
PART NUMBER
LT3474
LT3475
LT3476
LT3477
LT3478/LT3478-1
LT3486
LT3496
LT3517
LT3518
LT3755/LT3755-1/
LT3755-2
LTC

Buck Mode 1A LED Driver with High Dimming Ratio and Open LED Reporting
24V TO
®
3783
80V
V
IN
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
0.1µF
C1
1µF
2
INTV
CC
28.7k
375kHz
100k
1M
61.9k
DESCRIPTION
36V, 1A (I
Dual 1.5A (I
Quad Output 1.5A, 36V, 2MHz High Current LED Driver
with 1000:1 Dimming
3A, 42V, 3MHz Boost, Buck-Boost, Buck LED Driver
4.5A, 42V, 2.5MHz High Current LED Driver with
3000:1 Dimming
Dual 1.3A, 2MHz High Current LED Driver
Triple 0.75A, 2.1MHz, 45V LED Driver
1.5A, 2.5MHz, 45V LED Driver
2.3A, 2.5MHz, 45V LED Driver
40V
High Current LED Controller
IN
●
, 75V
SHDN/UVLO
V
CTRL
PWM
OPENLED
SS
RT
VC
REF
FAX: [phone]
47k
0.001µF
LED
OUT
LT3756-2
LED
), 2MHz, Step-Down LED Driver
V
GND
, Full Featured LED Controller
IN
), 36V, 2MHz Step-Down LED Driver
PWMOUT
INTV
SENSE
GATE
ISP
ISN
FB
CC
375612 TA05a
C2
4.7µF
●
www.linear.com
Q1
1.5k
1k
0.1
M1: VISHAY SILICONIX Si3430DV
D1: DIODES INC B1100/B
L1: WÜRTH 74456133
M2: VISHAY SILICONIX Si5435BDC
Q1: ZETEX FMMT493
Q2: ZETEX FMMT593
M1
M2
L1
33µH
0.033
1A
200k
5 WHITE LEDs
20W
Q2
D1
20k
200k
200k
COMMENTS
V
I
V
I
V
I
V
QFN and TSSOP20E Packages
V
I
V
I
V
4mm × 5mm QFN and TSSOP16E Packages
V
4mm × 4mm QFN and TSSOP16E Packages
V
4mm × 4mm QFN and TSSOP16E Packages
V
I
V
I
SD
SD
SD
SD
SD
SD
SD
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
C4
4.7µF
V
: 4V to 36V, V
: 4V to 36V, V
: 2.8V to 16V, V
: 2.5V to 25V, V
: 2.8V to 36V, V
: 2.5V to 24V, V
: 3V to 30V, V
: 3V to 30V, V
: 3V to 30V, V
: 4.5V to 40V, V
: 3V to 36V, V
< 1µA, TSSOP16E Package
< 1µA, TSSOP20E Package
< 10µA, 5mm × 7mm QFN Package
< 3µA, TSSOP16E Package
< 1µA, 5mm × 3mm DFN and TSSOP16E Packages
< 1µA, 3mm × 3mm QFN-16 and MS16E Packages
< 20µA, 5mm × 4mm QFN10 and TSSOP16E Packages
IN
C3
4.7µF
25V
5
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
50V/DIV
= 13.5V, True Color PWM Dimming = 400:1,
= 13.5V, True Color PWM Dimming = 3000:1,
= 45V, Dimming = 3000:1, I
= 45V, Dimming = 3000:1, I
= 45V, Dimming = 3000:1, I
= Ext FET, True Color PWM Dimming = 3000:1,
V
= 36V, True Color PWM Dimming = 1000:1,
= 40V, Dimming = Analog/PWM, I
= 42V, True Color PWM Dimming = 3000:1,
= 36V, True Color PWM Dimming = 1000:1,
= 75V, True Color PWM Dimming = 3000:1,
PWM
V
I
LED
SW
100
0A
1A
96
92
88
84
80
20
PWM Dimming Waveforms
 LINEAR TECHNOLOGY CORPORATION 2008
30
Efficiency vs V
40
10µs/DIV
V
LT 0310 REV B • PRINTED IN USA
IN
50
(V)
SD
SD
SD
60
< 1µA,
< 1µA,
< 1µA,
IN
SD
70
375612 TA05b
375612 TA05c
< 1µA,
80
375612fb