ZSLS7025ZI1R ZMDI, ZSLS7025ZI1R Datasheet - Page 21
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ZSLS7025ZI1R
Manufacturer Part Number
ZSLS7025ZI1R
Description
LED Lighting Drivers LED Driver
Manufacturer
ZMDI
Datasheet
1.ZSLS7025ZI1R.pdf
(27 pages)
Specifications of ZSLS7025ZI1R
Rohs
yes
Input Voltage
5 V
Maximum Supply Current
400 uA
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Package / Case
SOIC-8
Minimum Operating Temperature
- 40 C
Figure 4.2
4.4.1
Assume I
Choose C
4.4.2
The recommended value for t
Choose R
4.4.3
Choose C3 = 220μF/63V (low ESR electrolytic capacitor).
Data Sheet
June 28, 2012
ZSLS7025
Boost LED Driver
R
IN
Selecting R
Selecting R
Selecting R
VDD
R
t
= 2.5mA.
OFF
FB
Application Design Example – RC Filter PWM Dimming Circuit
IN
TOFF
_
MIN
V
as 220μF/35V and C
V
IN
FB
I
= 24kΩ.
© 2012 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
OUT
V
I
IN
_
IN
40
V
C
VDD
TOFF
FB
TH
C
DD
VDD
IN
to Set Output Current and C3
, C
10
to Set Minimum t
. 0
IN
k 3
86
R
12
, and C
OFF_MIN
VDD
R
R
TOFF
TOFF
is 1μs.
VDD
VDD
VDD
TOFF
ADJ
GND
as 10μF/16V.
1
ZSLS7025
s
OFF
L
1
GATE
OVP
CS
FB
PWM Control Signal
Q
R
1
CS
D
1
R
R
R
1
2
5
C
OUT
R
4
R
3
C
1
String
LED
R
FB
(14)
(15)
(16)
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