LT3755IUD#TRPBF Linear Technology, LT3755IUD#TRPBF Datasheet - Page 5
LT3755IUD#TRPBF
Manufacturer Part Number
LT3755IUD#TRPBF
Description
IC LED DRVR HP CONST CURR 16-QFN
Manufacturer
Linear Technology
Type
High Power, Constant Currentr
Datasheet
1.LT3755EUDPBF.pdf
(26 pages)
Specifications of LT3755IUD#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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Typical perForMance characTerisTics
10000
1000
1.28
1.27
1.26
1.25
1.24
1.23
1.20
1.22
1.21
120
100
–20
100
80
60
40
20
10
0
–50
10
0
V
FB Regulation Voltage
vs Temperature
Switching Frequency vs R
(ISP – ISN)
–25
0.5
0
TEMPERATURE (°C)
Threshold vs V
25
V
CTRL
R
T
50
1
(k)
(V)
75
100
1.5
CTRL
T
125
37551 G01
37551 G04
37551 G07
150
100
2
2.04
2.03
2.02
2.01
2.00
1.99
1.98
1.97
1.96
103
102
101
100
500
450
400
350
300
99
98
97
–50
–50
0
V
V
Switching Frequency
vs Temperature
V
R
(ISP – ISN)
REF
CTRL
T
–25
–25
= 26.7k
Voltage vs Temperature
= 2V
20
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
Threshold vs V
ISP VOLTAGE (V)
25
25
40
50
50
75
75
LT3755/LT3755-1/LT3755-2
100
100
60
ISP
125
125
37551 G02
37551 G05
37551 G08
T
A
150
150
80
= 25°C, unless otherwise noted.
2.04
2.03
2.02
2.01
2.00
1.99
1.98
1.97
1.96
103
102
101
100
2.4
2.2
1.6
2.0
1.8
97
99
98
–50
–50
V
vs Temperature
0
V
SHDN/UVLO Hysteresis Current
vs Temperature
V
(ISP – ISN)
REF
CTRL
–25
–25
Voltage vs V
= 2V
10
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
Threshold
25
25
V
IN
50
50
20
IN
(V)
75
75
100
100
30
125
125
37551 G03
37551 G09
37551 G06
37551fd
150
150
40