LT3755EUD-1#TRPBF Linear Technology, LT3755EUD-1#TRPBF Datasheet - Page 20

• Manufacturer Part Number: LT3755EUD-1#TRPBF
• Description: IC LED DRVR HP CONST CURR 16-QFN
• Manufacturer: Linear Technology
• Type: High Power, Constant Currentr

Specifications of LT3755EUD-1#TRPBF

• Constant Current: Yes
• Constant Voltage: Yes
• Topology: Flyback, Low Side, PWM, SEPIC, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive
• Type - Secondary: White LED
• Frequency: 100kHz ~ 1MHz
• Voltage - Supply: 4.5 V ~ 40 V
• Voltage - Output: 75V
• Mounting Type: Surface Mount
• Package / Case: 16-WQFN Exposed Pad
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -

Typical applicaTions
LT3755/LT3755-1/LT3755-2
0
0V TO 5V
1A/DIV
1A/DIV
PWM
I
LED
I
L1
V
V
1000:1 PWM Dimming at 120Hz
IN
LED
= 24V
= 10V
15V TO
with Buck Mode
40V
V
IN
2µs/DIV
INTV
C1
1µF
L1: COILTRONICS DR125-330
M1: VISHAY SILICONIX SI7850DP
D1: ON SEMICONDUCTOR MBRS360
M2: ZETEX ZXMN4A06G
M3: ZETEX ZXM62P03E6
Q1: ZETEX FMMT558
CC
100k
0.1µF
107k
1M
37551 TA03b
28.7k
375kHz
0.001µF
Buck Mode 1.4A LED Driver
SHDN/UVLO
V
CTRL
PWM
OPENLED
SS
RT
REF
V
C
47k
GND
LT3755-2
V
INTV
IN
CC
C2
4.7µF
PWMOUT
SENSE
GATE
ISP
ISN
FB
100
96
92
88
84
80
15
M2
1.5k
1k
0.068
20
Efficiency vs V
M3
M1
0.033
L1
33µH
25
1.4A
110k
V
3 LUXEON K2
- WHITE
IN
Q1
(V)
D1
30
20k
200k
IN
200k
37551 TA03a
C4
4.7µF
35
37551 TA03c
V
IN
C3
4.7µF
40
37551fd