ADP1621-EVAL(RevB) View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADP1621-EVAL
(Rev.:RevB)

Constant-Frequency, Current-Mode Step-Up DC/DC Controller

Analog Devices 

Data Sheet

C2

18pF

VIN = 10V TO 16V

C3

0.1µF

RB

800Ω

PIN IN

PWM

RCOMP

101kΩ

CCOMP

390nF

GATE

ADP1621

SDSN

CS

COMP

FB

FREQ PGND

GND

RFREQ

50kΩ

1%

C4

0.1µF

RS

800Ω

L1

33µH

D1

100V

150mA

M1

100V

20

LEDS

RCS

R1

3mΩ 8Ω

1/4W

VOUT

COUT

1µF

100V

×3

C1

2.2µF

25V

AGND

fOSC = 400kHz

C1 = MURATA GRM31MR71E225K

COUT = MURATA GRM31CR72A105K

L1 = COILCRAFT MSS1038-333NL

M1 = VISHAY Si4482DY

D1 = IRF 10MQ100

Figure 41. 20-Series LED Driver with PWM at SDSN

VIN = 10V TO 16V

C2

10pF

C3

0.1µF

RB

800Ω

PIN IN

R5

18kΩ

RCOMP

101kΩ

CCOMP

390nF

GATE

ADP1621

SDSN

CS

COMP

FB

FREQ PGND

GND

RFREQ

50kΩ

1%

C4

0.1µF

RS

800Ω

L1

33µH

D1

100V

150mA

M1

100V

20

LEDS

R2

10kΩ

RCS

R1

3m

8Ω

1/4W

COUT

1µF

100V

×3

R3

R4

22.9kΩ 10kΩ

C5

0.1µF

6.3V

VOUT

PWM =

0V TO 4V

C1

2.2µF

25V

AGND

fOSC = 400kHz

C1 = MURATA GRM31MR71E225K

COUT = MURATA GRM31CR72A105K

L1 = COILCRAFT MSS1038-333NL

M1 = VISHAY Si4482DY

D1 = IRF 10MQ100

Figure 42. 20-Series LED Driver with Filtered PWM

ADP1621

Rev. B | Page 29 of 32

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