LT3754 LED Boost Driver overview

Description

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LT3754 is a 16 channel, 40.0 V, 0.05 A/string non-sync LED Boost Driver. It can drive a maximum of 10 LED (~3.5Vfwd) per string, features a adjustable 1000 kHz frequency and is available in 1 package option(s): QFN-32 .

Further characteristics are a feedback voltage of 1.485 V, a typical inductor size of 10.0 uH and a peak efficiency of %.

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 16
V-IN min. 6.0 V
V-IN max. 40.0 V
V-OUT max. 45.0 V
Nr.of LED per string typ. 10
I-OUT/string? 0.05 A
current limit typ. 1.50 A
sync/non-sync non-sync
Frequency typ. 1000 kHz
Frequency adjustable
Frequency min. 100 kHz
Frequency max. 1000 kHz
Softstart yes
Softstart adjustable no
Down-Mode no
Quiescent current max. 5700 uA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 10.0 uH
feedback voltage 1.485 V
Automotive AEC-Q100 no
Topology Boost
Peak Efficiency
Component count min. 19
DC dimming yes
PWM dimming yes
PWM frequency min. 0.10 kHz
PWM frequency max.
digital dimming no
digital interface no
LED flash no
TxMask no
Nr.of current sources 16
Nr.of package options 1
CSP
SC70
SOT
MSOP
QFN/DFN QFN-32
SO/SOIC
SOP
DIP

LT3754 Datasheet

Link to the most up-to-date LT3754 datasheet and the product page for EVM, tools and support information.

LT3754

LT3754 inventory, samples and price

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Available Distributors with stock: 0

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List with equivalents & alternatives

The following DC/DC LED Boost driver are similar to LT3754. Optional, compare LT3754 side-by-side with other LED driver via the comparison function.

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Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3754.

V-IN min. 6 V, V-OUT max. 45 V, current limit typ. 1.5 A, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744311100 1.0 15.0 19.0 4.60 7 x 6.9 x 4
744314110 1.1 15.0 13.0 3.15 7 x 6.9 x 5
744323100 1.0 14.0 21.0 4.79 10.6 x 10.6 x 3.1
744323120 1.2 12.0 15.0 6.60 10.6 x 10.6 x 3.1
744325120 1.2 20.0 25.0 1.80 10.5 x 10.2 x 5
7443340100 1.0 17.0 24.0 3.60 8.4 x 7.9 x 7.5
7443550140 1.4 22.0 26.0 2.40 13 x 12.8 x 5
7443551130 1.3 25.0 25.0 1.70 13.2 x 12.8 x 6.5
7443552100 1.0 16.0 20.0 3.30 10.5 x 10.2 x 4.2
74437356010 1.0 12.5 25.5 5.10 8.64 x 8.5 x 3
74437377010 1.0 15.0 26.0 2.70 13.5 x 12.6 x 3.5
74477001 1.2 12.0 16.6 5.00 12 x 12 x 8
7447709001 1.0 13.0 25.0 3.80 12 x 12 x 10
7447798110 1.1 16.5 16.0 3.00 10.2 x 10.2 x 6.4
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