RT9921PQV 데이터 시트보기 (PDF) - Richtek Technology

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RT9921PQV

Integrated Multi-Channel DC-DC Converter for TFT LCD Panels

Richtek Technology 

RT9921

Preliminary

Power On Sequence with VGHM

VLDO

(2V/Div)

VAVDD

(5V/Div)

VGH

(20V/Div)

VGHM

(20V/Div)

VIN = 3.3V, VOUT = 8.5V

Time (25ms/Div)

Power Off Sequence with VGHM

VLDO

(2V/Div)

VAVDD

(5V/Div)

VGH

(20V/Div)

VGHM

(20V/Div)

VIN = 3.3V, VOUT = 8.5V

Time (10ms/Div)

OPA Large Signal Step Response

VOS = 4.0V

OPAI

(1V/Div)

OPA Small Signal Step Response

VOS = 4.0V

OPAI

(100mV/Div)

OPAO

(1V/Div)

http://www.DataSheet4U.net/

OPAO

(100mV/Div)

Time (500ns/Div)

OPA Rail to Rail Input/Output

VOS = 4.0V

OPAI

(5V/Div)

OPAO

(5V/Div)

www.richtek.com

10

Time (2.5μs/Div)

Time (500ns/Div)

OPA Slew Rate

OPAI

OPAO

(2V/Div)

Time (250ns/Div)

DS9921-00 November 2007

datasheet pdf - http://www.DataSheet4U.net/

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