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ZLED7010 Datenblatt(PDF) 18 Page - Integrated Device Technology

Teilenummer ZLED7010
Bauteilbeschribung  40V LED Driver with Temperature Compensation
PDF  22 Pages
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Hersteller  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

ZLED7010 Datenblatt(HTML) 18 Page - Integrated Device Technology

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ZLED7010 Datasheet
© 2016 Integrated Device Technology, Inc.
18
April 20, 2016
RNTC
RTH
ADJI
ADJO
GND
ZLED7010
R2
R3
NTC
100pF
100pF
100pF
100pF
RNTC
RTH
ADJI
ADJO
GND
ZLED7010
R4
RNTC
VIN
RTH
ADJI
ADJO
GND
ISENSE
LX
ZLED7010
VS
n1 LED
L1-1
R3
NTC
C1-1
C2
R2
RS-1
D1-1
RNTC
VIN
RTH
ADJI
ADJO
GND
ISENSE
LX
ZLED7010
n3 LED
L1-3
C1-3
RS-3
D1-3
RNTC
VIN
RTH
ADJI
ADJO
GND
ISENSE
LX
ZLED7010
n2 LED
L1-2
C1-2
RS-2
D1-2
VS
VS
5
Chaining Multiple ZLED7010 ICs
Figure 5.1 shows a typical circuit for chaining multiple ZLED7010s using the ADJI and ADJO pins and a
temperature sensing network of R2, R4, and R3, which is an NTC component. Note that only one temperature
sensing network is needed.
When R3+R4 > R2, VADJO = VADJI.
When R3+R4 < R2, the ADJO pin outputs the ADJI input voltage with temperature compensation information.
Figure 5.1
ZLED7010 Chain Connections
In Figure 5.2, note that each ZLED7010 can drive up to three slave ICs in the next stage. Using more than three
stages to maintain current coherence is not recommended. Up to thirteen ZLED7010 can be connected in one
system.
Figure 5.2
ZLED7010 System Application



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