TLD5045 Buck LED driver IC overview

Description

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TLD5045 is a sync DC/DC Buck LED driver IC from . Maximum input voltage is 40.0 V and it drives an output current of up to 0.70 A. Assuming a typical 3.5V LED forward voltage TLD5045 can drive up to 6 LED in series.

The LED Buck driver IC features adjustable 200 kHz switching frequency, a feedback voltage of 1.23 V and requires a typical inductor size of 220.0 uH. This combination results in a peak efficiency of ~95 %. TLD5045 comes in 1 package option(s) - DSO-8 .

Parameter and feature overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 5.0 V
V-IN max. 40.0 V
Nr.of LEDs max. 6
I-OUT? 0.70 A
MOSFET intern
ext.clock sync. no
sync/non-sync sync
Frequency typ. 200 kHz
Frequency adjustable adjustable
Frequency min. 50 kHz
Frequency max. 300 kHz
Softstart no
Softstart adjustable no
Quiescent current max. 10000 uA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 150 °C
thermal shutdown typ. 175.0 °C
Inductor size 220.0 uH
Inductor suggested by Würth Elektronik
Feedback Voltage 1.23 V
Automotive AEC-Q100 yes
Topology Buck
Peak Efficiency 95 %
Component count min. 7
DC Dimming no
PWM Dimming yes
digital dimming no
Nr. of package options 1
SC70
SOT
MSOP
QFN/DFN
SO/SOIC DSO-8
SOP
DIP
TO
Variation
LED temperature compensation no

TLD5045 Datasheet

Link to the most up-to-date TLD5045 datasheet and the product page for EVM, tools and support information.

TLD5045

TLD5045 inventory, samples and price

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Available Distributors with stock: 2

Chip One Stop (1)

ProductStockPriceBuy
TLD5045EJXT2500
25001.22 USD
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Digi-Key (2)

ProductStockPriceBuy
TLD5045EJXUMA10
25001.13 USD
50001.09 USD
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TLD5045EJXUMA12400
12.55 USD
102.29 USD
1001.84 USD
5001.51 USD
10001.25 USD
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TLD5045EJXUMA12400
12.55 USD
102.29 USD
1001.84 USD
5001.51 USD
10001.25 USD
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Available Distributors without stock: 2

AVNET-AMERICAS (0)

ProductStockPriceBuy
TLD5045EJXUMA10
25001.21 USD
50001.16 USD
100001.12 USD
150001.08 USD
250001.06 USD
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Element14 (0)

ProductStockPriceBuy
TLD5045EJXUMA10
53.46 USD
252.95 USD
1002.36 USD
2502.21 USD
5002.07 USD
10001.71 USD
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Available Distributors with stock: 0

no online Distributor with TLD5045 stock available

Equivalents and alternatives

The following DC/DC LED Buck driver are similar to TLD5045. Optional, compare TLD5045 side-by-side with other LED driver via the Comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of TLD5045.

V-IN min. 5 V, V-IN max. 40 V, I-OUT 0.7 A, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054680 68.0 0.8 1.0 400.00 5 x 5 x 4
74404063680 68.0 0.9 0.9 360.00 6 x 6 x 2.8
74404064101 100.0 0.8 1.0 433.00 6 x 6 x 4.5
74404064680 68.0 1.0 1.3 289.00 6 x 6 x 4.5
74404084101 100.0 1.0 1.3 290.00 8 x 8 x 4.2
74404084680 68.0 1.3 1.6 196.00 8 x 8 x 4.2
744065101 100.0 1.0 0.9 365.00 10 x 10 x 3.1
744065680 68.0 1.2 1.1 232.00 10 x 10 x 3.1
744065820 82.0 1.1 1.0 323.00 10 x 10 x 3.1
744066101 100.0 1.2 1.2 255.00 10 x 10 x 4.1
744066680 68.0 1.5 1.5 185.00 10 x 10 x 4.1
744071101 100.0 1.0 0.9 270.00 8 x 8 x 4.6
744071680 68.0 1.3 1.1 185.00 8 x 8 x 4.6
744731680 68.0 1.5 1.0 170.00 7.8 x 7.8 x 7.5
744741101 100.0 1.1 0.9 420.00 8 x 8 x 6
744743101 100.0 1.5 1.6 250.00 7.5 x 7.5 x 12.5
7447452101 100.0 1.8 1.5 130.00 9 x 9 x 13.5
7447462680 68.0 0.8 1.0 340.00 5.5 x 5.5 x 8.5
7447471101 100.0 1.6 1.4 150.00 10.5 x 10.5 x 11.5
7447713101 100.0 0.9 1.4 398.00 10 x 10 x 3
7447713680 68.0 1.1 1.6 275.00 10 x 10 x 3
7447713820 82.0 1.0 1.5 349.00 10 x 10 x 3
7447715101 100.0 1.3 1.4 250.00 12 x 12 x 4.5
744772101 100.0 0.9 1.6 120.00 7.8 x 7.8 x 10
744775168 68.0 1.0 1.1 218.00 7 x 7.8 x 5.5
744775182 82.0 0.9 1.0 208.00 7 x 7.8 x 5.5
74477520 100.0 0.8 0.9 248.20 7 x 7.8 x 5.5
744776168 68.0 1.2 1.5 138.00 9 x 10 x 5.9
744776182 82.0 1.1 1.2 150.00 9 x 10 x 5.9
74477620 100.0 1.0 1.1 200.00 9 x 10 x 5.9
744777168 68.0 0.9 1.0 239.00 7.3 x 7.3 x 4.5
744777182 82.0 0.8 0.9 257.00 7.3 x 7.3 x 4.5
7447779168 68.0 0.9 1.0 239.00 7.3 x 7.3 x 4.5
7447779182 82.0 0.8 0.9 250.00 7.3 x 7.3 x 4.5
744778168 68.0 0.7 0.8 417.00 7.3 x 7.3 x 3.4
7447789168 68.0 0.7 0.8 427.00 7.3 x 7.3 x 3.5
744787101 100.0 1.0 0.9 396.00 7.8 x 7 x 5
744787680 68.0 1.1 1.0 246.00 7.8 x 7 x 5
744787820 82.0 1.0 0.9 278.00 7.8 x 7 x 5
784775168 68.0 1.0 1.1 218.00 7 x 7.8 x 5.5
784775182 82.0 0.9 1.0 248.00 7 x 7.8 x 5.5
78477520 100.0 0.8 0.9 281.00 7 x 7.8 x 5.5
784776168 68.0 1.2 1.5 138.00 9 x 10 x 5.9
784776182 82.0 1.1 1.2 150.00 9 x 10 x 5.9
78477620 100.0 1.0 1.1 200.00 9 x 10 x 5.9
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