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ADP1621ARMZ-R7 Datasheet(PDF) 29 Page - Analog Devices

Part # ADP1621ARMZ-R7
Description  Constant-Frequency, Current-Mode Step-Up DC/DC Controller
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1621ARMZ-R7 Datasheet(HTML) 29 Page - Analog Devices

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ADP1621
Rev. A | Page 29 of 32
ADP1621
IN
CS
FB
AGND
PGND
SDSN
COMP
FREQ
GND
PIN
PWM
GATE
R1
8Ω
1/4W
150mA
20
LEDS
RB
800Ω
C1
2.2µF
25V
L1
33µH
M1
100V
CCOMP
390nF
fOSC = 400kHz
C1 = MURATA GRM31MR71E225K
COUT = MURATA GRM31CR72A105K
L1 = COILCRAFT MSS1038-333NL
M1 = VISHAY Si4482DY
D1 = IRF 10MQ100
RS
800Ω
COUT
1µF
100V
×3
RFREQ
50kΩ
1%
VOUT
VIN = 10V TO 16V
D1
100V
C3
0.1µF
C4
0.1µF
C2
18pF
RCOMP
101kΩ
RCS
3mΩ
Figure 41. 20-Series LED Driver with PWM at SDSN
ADP1621
IN
CS
FB
AGND
PGND
SDSN
COMP
FREQ
GND
PIN
PWM =
0V TO 4V
GATE
R1
8Ω
1/4W
R5
18kΩ
150mA
20
LEDS
RB
800Ω
C1
2.2µF
25V
L1
33µH
M1
100V
C5
0.1µF
6.3V
CCOMP
390nF
fOSC = 400kHz
C1 = MURATA GRM31MR71E225K
COUT = MURATA GRM31CR72A105K
L1 = COILCRAFT MSS1038-333NL
M1 = VISHAY Si4482DY
D1 = IRF 10MQ100
RS
800Ω
R2
10kΩ
R3
22.9kΩ
R4
10kΩ
COUT
1µF
100V
×3
RFREQ
50kΩ
1%
VOUT
VIN = 10V TO 16V
D1
100V
C3
0.1µF
C4
0.1µF
C2
10pF
RCOMP
101kΩ
RCS
3m
Figure 42. 20-Series LED Driver with Filtered PWM



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