R1211D104A Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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Компоненты Описание

производитель

R1211D104A

STEP-UP DC/DC CONTROLLER

RICOH Co.,Ltd. 

R1211x

∗DELAY Pin Detector Threshold Voltage Test

3.3V

VIN

EXT

VFB

GND DELAY

OSCILLOSCOPE

∗AMP "H" Output Current/"L"

Output Current Test

3.3V

VIN

AMPOUT A

VFB

GND DELAY

1V

0.9V/1.1V

∗UVLO Detector Threshold/Hysteresis Range Test

VIN

EXT

VFB

GND DELAY

OSCILLOSCOPE

∗Soft-start Time Test

C5

C3

Coil

VIN

EXT

AMPOUT

VFB C4 R4

GND DELAY

Diode

NMOS

VOUT

C2 OSCILLOSCOPE

Rout

C1

R1

R3

R2

<Components>

Inductor (L)

Diode (SD)

Capacitors

NMOS Transistor

Resistors

: 22µH (TDK LDR655312T-220)

: CRS02 (Toshiba)

C1:680pF(Ceramic), C2:22µF (Tantalum)+2.2µF (Ceramic),

C3:68µF (Tantalum)+2.2µF (Ceramic), C4:2200pF(Ceramic), C5:22µF(Tantalum)

: IRF7601 (International Rectifier)

: R1: 90kΩ, R2:10kΩ, R3:30kΩ, R4:30kΩ, Rout:1kΩ/330Ω

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