ISL78100 Buck LED driver IC overview

Description

Manufacturer
 
Category
Sub-Category

ISL78100 is a non-sync DC/DC Buck LED driver IC from . Maximum input voltage is 16.0 V and it drives an output current of up to 1.00 A. Assuming a typical 3.5V LED forward voltage ISL78100 can drive up to 3 LED in series.

The LED Buck driver IC features fixed 1000 kHz switching frequency, a feedback voltage of 0.20 V and requires a typical inductor size of 10.0 uH. This combination results in a peak efficiency of ~90 %. ISL78100 comes in 1 package option(s) - QFN-20 .

Parameter and feature overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 2.7 V
V-IN max. 16.0 V
Nr.of LEDs max. 3
I-OUT? 1.00 A
MOSFET intern
ext.clock sync. no
sync/non-sync non-sync
Frequency typ. 1000 kHz
Frequency adjustable fixed
Frequency min.
Frequency max.
Softstart no
Softstart adjustable no
Quiescent current max. 3500 uA
Operating min. -40 °C
Operating max. 105 °C
Junction min.
Junction max.
thermal shutdown typ. 135.0 °C
Inductor size 10.0 uH
Inductor suggested by Würth Elektronik
Feedback Voltage 0.20 V
Automotive AEC-Q100 yes
Topology Buck
Peak Efficiency 90 %
Component count min. 11
DC Dimming yes
PWM Dimming yes
digital dimming no
Nr. of package options 1
SC70
SOT
MSOP
QFN/DFN QFN-20
SO/SOIC
SOP
DIP
TO
Variation
LED temperature compensation no

ISL78100 Datasheet

Link to the most up-to-date ISL78100 datasheet and the product page for EVM, tools and support information.

ISL78100

ISL78100 inventory, samples and price

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Available Distributors with stock: 1

Digi-Key (2)

ProductStockPriceBuy
ISL78100ARZ-T7A0
2506.27 USD
5005.72 USD
12504.98 USD
Buy Now
ISL78100ARZ-T7A219
19.05 USD
108.17 USD
257.79 USD
1006.77 USD
Buy Now
ISL78100ARZ-T7A219
19.05 USD
108.17 USD
257.79 USD
1006.77 USD
Buy Now
ISL78100ARZ-T0
60004.30 USD
Buy Now
ISL78100ARZ-TK0
10004.64 USD
Buy Now
ISL78100ARZ0
3005.83 USD
Buy Now

Available Distributors without stock: 3

Avnet America (0)

ProductStockPriceBuy
ISL78100ARZ0
3004.49 USD
3024.39 USD
6024.29 USD
15004.09 USD
30004.09 USD
Buy Now
ISL78100ARZ-T0
60004.49 USD
120004.39 USD
240004.29 USD
360004.19 USD
600004.09 USD
Buy Now
ISL78100ARZ-T7A0
2504.89 USD
5004.69 USD
10004.59 USD
15004.49 USD
25004.39 USD
Buy Now
ISL78100ARZ-TK0
10004.49 USD
20004.39 USD
40004.29 USD
60004.19 USD
100004.09 USD
Buy Now

Future Electronics (0)

ProductStockPriceBuy
ISL78100ARZ0
3004.45 USD
Buy Now
ISL78100ARZ-T0
60004.47 USD
Buy Now
ISL78100ARZ-T7A0
2504.79 USD
Buy Now
ISL78100ARZ-TK0
10004.47 USD
Buy Now

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 1

Digi-Key

ProductStockPriceBuy
ISL78100ARZ-T7A 219
1005.92 €
256.81 €
107.15 €
17.91 €
Buy Now
ISL78100ARZ-T7A 219
1005.92 €
256.81 €
107.15 €
17.91 €
Buy Now
ISL78100ARZ-T7A 0
12504.36 €
5005.00 €
2505.49 €
Buy Now
ISL78100ARZ-T 0
60003.76 €
Buy Now
ISL78100ARZ-TK 0
10004.06 €
Buy Now
ISL78100ARZ 0
3005.10 €
Buy Now
show stock=0hide stock=0

Available Distributors without stock: 2

Avnet

ProductStockPriceBuy
ISL78100ARZ 0
3004.49 $
3024.39 $
6024.29 $
15004.09 $
30004.09 $
Buy Now
ISL78100ARZ-T 0
60004.49 $
120004.39 $
240004.29 $
360004.19 $
600004.09 $
Buy Now
ISL78100ARZ-TK 0
10004.49 $
20004.39 $
40004.29 $
60004.19 $
100004.09 $
Buy Now
ISL78100ARZ-T7A 0
2504.89 $
5004.69 $
10004.59 $
15004.49 $
25004.39 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
ISL78100ARZ-TK 0
18.19 $
107.40 $
257.06 $
1006.13 $
2505.85 $
5005.34 $
10004.65 $
Buy Now
ISL78100ARZ 0
18.33 $
107.53 $
257.18 $
1006.23 $
2505.95 $
5005.43 $
10004.73 $
Buy Now
ISL78100ARZ-T 0
60004.13 $
Buy Now
ISL78100ARZ-T7A 0
2506.28 $
5005.72 $
10004.99 $
Buy Now

Equivalents and alternatives

The following DC/DC LED Buck driver are similar to ISL78100. Optional, compare ISL78100 side-by-side with other LED driver via the Comparison function.

Variation Compare Product Manufacturer Package
0% MAX16832 MAX16832 product overviewMAX16832 product overview Maxim Integrated SOIC-8
0% AL8806Q AL8806Q product overviewAL8806Q product overview Diodes MSOP-8
0% AL8807Q AL8807Q product overviewAL8807Q product overview Diodes MSOP-8
0% MPQ2489-AEC1 MPQ2489-AEC1 product overviewMPQ2489-AEC1 product overview MPS TSOT23-5, QFN-6
0% ZXLD1360Q ZXLD1360Q product overviewZXLD1360Q product overview Diodes TSOT25-5
0% ZXLD1362Q ZXLD1362Q product overviewZXLD1362Q product overview Diodes TSOT25-5
0% ZXLD1366Q ZXLD1366Q product overviewZXLD1366Q product overview Diodes TSOT25-5, DFN-6
0% ZXLD1374Q ZXLD1374Q product overviewZXLD1374Q product overview Diodes TSSOP-20
50% MAX16822 MAX16822 product overviewMAX16822 product overview Maxim Integrated SOIC-8
50% ZXLD1356Q ZXLD1356Q product overviewZXLD1356Q product overview Diodes TSOT25-5, DFN-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of ISL78100.

V-IN min. 2.7 V, V-IN max. 16 V, I-OUT 1 A, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025004 4.7 1.4 1.7 100.00 2.8 x 2.8 x 3
744025006 6.8 1.1 1.3 142.00 2.8 x 2.8 x 3
74404024047 4.7 1.1 1.2 175.00 2.5 x 2 x 1.2
74404032047 4.7 1.3 1.2 96.00 3 x 3 x 1.5
74404041047 4.7 1.6 1.9 91.00 4 x 4 x 1.2
74404042047 4.7 1.7 2.2 70.00 4 x 4 x 1.8
74404042068 6.8 1.5 1.8 98.00 4 x 4 x 1.8
74404052068 6.8 1.9 2.4 82.70 5 x 5 x 2
74404052075 7.5 1.7 2.1 96.80 5 x 5 x 2
744042004 4.7 1.7 1.7 70.00 4.8 x 4.8 x 2
744042005 5.6 1.6 1.4 80.00 4.8 x 4.8 x 2
744042006 6.8 1.5 1.3 80.00 4.8 x 4.8 x 2
744043004 4.7 1.6 1.7 50.00 4.8 x 4.8 x 3
744043005 5.6 1.4 1.3 70.00 4.8 x 4.8 x 3
744043006 6.8 1.3 1.3 80.00 4.8 x 4.8 x 3
744045004 4.7 1.2 2.0 120.00 4.5 x 3.2 x 2.9
7440450056 5.6 1.2 1.9 144.00 4.5 x 3.2 x 2.9
744045006 6.8 1.1 1.6 160.00 4.5 x 3.2 x 2.9
744052005 5.0 1.7 1.8 50.00 5.8 x 5.8 x 2
744052006 6.2 1.5 1.6 70.00 5.8 x 5.8 x 2
744052007 7.5 1.4 1.5 70.00 5.8 x 5.8 x 2
7440530047 4.7 2.4 2.0 30.00 5.8 x 5.8 x 3
744053005 5.3 2.3 1.9 30.00 5.8 x 5.8 x 3
744053006 6.2 2.2 1.7 40.00 5.8 x 5.8 x 3
744062005 5.0 2.2 2.0 40.00 6.8 x 6.8 x 2.5
744062006 6.2 1.9 1.8 40.00 6.8 x 6.8 x 2.5
744062007 7.5 1.7 1.6 50.00 6.8 x 6.8 x 2.5
7440680047 4.7 1.9 1.6 72.00 8 x 8 x 1.2
7440680056 5.6 1.5 1.4 110.00 8 x 8 x 1.2
7440680068 6.8 1.4 1.2 127.00 8 x 8 x 1.2
7440690047 4.7 2.2 1.8 56.00 8 x 8 x 1.5
7440690068 6.8 1.8 1.7 88.00 8 x 8 x 1.5
7440700047 4.7 3.0 2.2 37.00 8 x 8 x 2
7440700056 5.6 2.6 2.0 47.00 8 x 8 x 2
7440700068 6.8 2.4 1.8 56.00 8 x 8 x 2
74408941068 6.8 1.1 2.1 190.00 4.8 x 4.8 x 2.1
74408941078 7.8 1.1 1.9 230.00 4.8 x 4.8 x 2.1
74408942068 6.8 1.5 2.4 110.00 4.8 x 4.8 x 3.1
74437321068 6.8 1.3 2.4 300.00 4.45 x 4.06 x 1.2
74438324047 4.7 1.0 2.1 300.00 2.5 x 2 x 1.2
74438335068 6.8 1.1 2.4 250.00 3 x 3 x 1.5
744773068 6.8 1.5 2.1 76.00 4 x 4.5 x 3.5
7447785006 6.8 2.3 2.0 79.00 5.9 x 6.2 x 3.3
7447786006 6.8 2.5 2.3 62.00 5.9 x 6.2 x 5.1
78438335068 6.8 1.1 2.4 250.00 3 x 3 x 1.5
784773068 6.8 1.5 2.1 76.00 4 x 4.5 x 3.5
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