LT3756EUD#PBF Linear Technology, LT3756EUD#PBF Datasheet - Page 4
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LT3756EUD#PBF
Manufacturer Part Number
LT3756EUD#PBF
Description
IC LED DRVR HP CONST CURR 16-QFN
Manufacturer
Linear Technology
Type
High Power, Constant Currentr
Datasheet
1.LT3756EUD-1PBF.pdf
(24 pages)
Specifications of LT3756EUD#PBF
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
6 V ~ 100 V
Voltage - Output
100V
Mounting Type
Surface Mount
Package / Case
16-WQFN Exposed Pad
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
1A
Internal Switch(s)
Yes
Efficiency
94%
Operating Supply Voltage (typ)
9/12/15/18/24V
Number Of Segments
18
Operating Temperature (min)
-40C
Operating Temperature (max)
125C
Operating Temperature Classification
Automotive
Package Type
QFN EP
Pin Count
16
Mounting
Surface Mount
Operating Supply Voltage (min)
6V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
elecTrical characTerisTics
LT3756/LT3756-1/LT3756-2
temperature range, otherwise specifications are at T
noted.
PARAMETER
Logic Inputs/Outputs
PWM Input High Voltage
PWM Input Low Voltage
PWM Pin Resistance to GND
PWMOUT Output Low (V
PWMOUT Output High (V
SHDN/UVLO Threshold Voltage Falling
SHDN/UVLO Rising Hysteresis
SHDN/UVLO Input Low Voltage
SHDN/UVLO Pin Bias Current Low
SHDN/UVLO Pin Bias Current High
OPENLED Output Low (V
SYNC Pin Resistance to GND
SYNC Input High
SYNC Input Low
Gate Driver
t
t
GATE Output Low (V
GATE Output High (V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3756E, LT3756E-1 and LT3756E-2 are guaranteed to meet
performance specifications from 0°C to 125°C junction temperature.
Specifications over the –40°C to 125°C operating junction temperature
range are assured by design, characterization and correlation with
statistical process controls. The LT3756I, LT3756I-1 and LT3756I-2 are
guaranteed to meet performance specifications over the –40°C to 125°C
operating junction temperature range. The LT3756H-2 is guaranteed to
meet performance specifications over the full –40°C to 150°C operating
junction temperature range. High junction temperatures degrade operating
lifetimes. Operating lifetime is derated at junction temperatures greater
than 125°C.
r
f
GATE Driver Output Fall Time
GATE Driver Output Rise Time
OL
OH
)
)
OL
OL
OH
)
)
)
A
= 25°C. V
CONDITIONS
E-, I-Grades
H Grade
I
SHDN/UVLO = 1.15V
SHDN/UVLO = 1.30V
I
(LT3756 and LT3756-2)
LT3756-1 Only
LT3756-1 Only
LT3756-1 Only
C
C
VIN
OPENLED
The
L
L
= 3300pF
= 3300pF
Drops Below 1µA
l
IN
denotes the specifications which apply over the full operating
= 24V, SHDN/UVLO = 24V, CTRL = 2V, PWM = 5V, unless otherwise
= 0.5mA
Note 3: The LT3756 includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed the maximum operating junction temperature
when overtemperature protection is active. Continuous operating above
the specified maximum operating junction temperature may impair device
reliability.
Note 4: GATE and PWMOUT pins are driven either to GND or INTV
internal switches. Do not connect these pins externally to a power supply.
l
l
l
l
INTV
INTV
1.185
1.175
0.05
0.05
MIN
1.5
1.7
1.5
45
CC
CC
–
–
1.220
2.05
TYP
60
20
10
30
35
35
0
1.245
1.245
MAX
0.05
100
200
0.4
0.4
2.5
0.4
50
CC
375612fb
UNITS
by
mV
mV
mV
kΩ
kΩ
µA
nA
ns
ns
V
V
V
V
V
V
V
V
V
V