SP7648 LED Boost Driver overview

Description

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Category
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SP7648 is a 1 channel, 4.5 V, 0.80 A/string sync LED Boost Driver. It can drive a maximum of 1 LED (~3.5Vfwd) per string, features a fixed 100 kHz frequency and is available in 2 package option(s): MSOP-8 DFN-10 .

Further characteristics are a feedback voltage of 0.288 V, a typical inductor size of 4.7 uH and a peak efficiency of 81 %.

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 2.7 V
V-IN max. 4.5 V
V-OUT max. 5.5 V
Nr.of LED per string typ. 1
I-OUT/string? 0.80 A
current limit typ. 1.60 A
sync/non-sync sync
Frequency typ. 100 kHz
Frequency fixed
Frequency min.
Frequency max.
Softstart no
Softstart adjustable no
Down-Mode no
Quiescent current max.
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 4.7 uH
feedback voltage 0.288 V
Automotive AEC-Q100 no
Topology Boost
Peak Efficiency 81 %
Component count min. 9
DC dimming no
PWM dimming yes
PWM frequency min. 0.00 kHz
PWM frequency max. 0.0 kHz
digital dimming no
digital interface no
LED flash no
TxMask no
Nr.of current sources 1
Nr.of package options 2
CSP
SC70
SOT
MSOP MSOP-8
QFN/DFN DFN-10
SO/SOIC
SOP
DIP

SP7648 Datasheet

Link to the most up-to-date SP7648 datasheet and the product page for EVM, tools and support information.

SP7648

SP7648 inventory, samples and price

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List with equivalents & alternatives

The following DC/DC LED Boost driver are similar to SP7648. Optional, compare SP7648 side-by-side with other LED driver via the comparison function.

Variation Compare Product Manufacturer Package
10% LT3519 LT3519 product overviewLT3519 product overview Linear Technology MSOP-16
10% LT3519-1 LT3519-1 product overviewLT3519-1 product overview Linear Technology MSOP-16
10% LT3519-2 LT3519-2 product overviewLT3519-2 product overview Linear Technology MSOP-16
10% RT9285 RT9285 product overviewRT9285 product overview Richtek WDFN-8, SOT23-5
10% LM3500 LM3500 product overviewLM3500 product overview Texas Instruments DSBGA-8
10% LM3501 LM3501 product overviewLM3501 product overview Texas Instruments DSBGA-8
10% LM3508 LM3508 product overviewLM3508 product overview Texas Instruments DSBGA-9
25% MP3412 MP3412 product overviewMP3412 product overview MPS SOT23-6
25% STCF05 STCF05 product overviewSTCF05 product overview ST UTFBGA-25
50% SSL3252UK SSL3252UK product overviewSSL3252UK product overview NXP WLCSP-12
50% STCF03 STCF03 product overviewSTCF03 product overview ST VFQFPN-20, TFBGA-25

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of SP7648.

V-IN min. 2.7 V, V-OUT max. 5.5 V, current limit typ. 1.6 A, Frequency typ. 100 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404084082 8.2 3.5 4.6 26.00 8 x 8 x 4.2
744066100 10.0 3.6 4.0 25.00 10 x 10 x 4.1
744314101 10.0 3.5 4.0 33.00 7 x 6.9 x 5
744314760 7.6 4.2 4.8 30.20 7 x 6.9 x 5
744314850 8.5 4.0 4.5 32.50 7 x 6.9 x 5
7443330820 8.2 11.5 8.0 14.15 10.9 x 10 x 9.7
7443331000 10.0 9.0 8.0 22.75 10.9 x 10 x 9.7
7443341000 10.0 4.4 7.0 38.50 8.4 x 7.9 x 7.5
744732100 10.0 4.0 4.0 27.00 9 x 9 x 8
7447452100 10.0 4.7 4.5 15.00 9 x 9 x 13.5
7447471100 10.0 5.1 4.2 17.50 10.5 x 10.5 x 11.5
744750230100 10.0 4.6 6.8 18.60 8.8 x 8.8 x 11
74477007 7.6 7.4 8.0 16.00 12 x 12 x 8
74477010 10.0 6.2 6.6 19.00 12 x 12 x 8
744770112 12.0 5.9 6.3 21.00 12 x 12 x 8
744771008 8.2 6.3 6.3 14.00 12 x 12 x 6
74477110 10.0 4.1 5.6 21.00 12 x 12 x 6
744771112 12.0 3.9 4.9 23.00 12 x 12 x 6
7447714100 10.0 4.3 5.0 23.00 10 x 10 x 5
7447715100 10.0 3.8 4.2 25.00 12 x 12 x 4.5
744772100 10.0 4.2 5.0 20.30 7.8 x 7.8 x 10
7447797820 8.2 5.1 5.8 25.30 10.2 x 10.2 x 4.5
7447798111 11.0 6.9 5.3 14.00 10.2 x 10.2 x 6.4
7447798131 13.0 5.9 4.5 19.90 10.2 x 10.2 x 6.4
7447798910 9.1 7.4 5.4 12.70 10.2 x 10.2 x 6.4
784770100 10.0 5.0 6.8 26.00 12 x 12 x 8.3
7847709100 10.0 5.0 7.5 25.00 12 x 12 x 10.3
784771082 8.2 5.1 5.5 20.00 12 x 12 x 8.3
784771100 10.0 5.0 5.3 22.00 12 x 12 x 8.3
784776082 8.2 4.2 4.3 20.00 9 x 10 x 5.9
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