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-T7A229
19.05 USD
108.17 USD
1006.77 USD
Buy Now
ISL78100ARZ-T7A229
19.05 USD
108.17 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

Mouser Electronics (0)

ProductStockPriceBuy
ISL78100ARZ0
18.35 USD
107.55 USD
257.20 USD
1006.25 USD
2505.97 USD
5005.45 USD
10004.74 USD
25004.57 USD
50004.48 USD
Buy Now
ISL78100ARZ-TK0
10004.66 USD
20004.50 USD
50004.48 USD
Buy Now
ISL78100ARZ-T0
60004.48 USD
Buy Now
ISL78100ARZ-T7A0
2506.30 USD
5005.73 USD
10005.00 USD
25004.81 USD
Buy Now

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 1

Digi-Key

ProductStockPriceBuy
ISL78100ARZ-T7A 229
1005.77 €
106.98 €
17.72 €
Buy Now
ISL78100ARZ-T7A 229
1005.77 €
106.98 €
17.72 €
Buy Now
ISL78100ARZ-T7A 0
12504.25 €
5004.88 €
2505.35 €
Buy Now
ISL78100ARZ-T 0
60003.67 €
Buy Now
ISL78100ARZ-TK 0
10003.96 €
Buy Now
ISL78100ARZ 0
3004.98 €
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 0
18.33 $
107.53 $
257.18 $
1006.23 $
2505.95 $
5005.43 $
10004.73 $
Buy Now
ISL78100ARZ-TK 0
10004.65 $
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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