ADD8733ACPZ-REEL datasheet(3/16 Pages) AD

Nome de Peças	ADD8733ACPZ-REEL

Descrição Electrónicos	Integrated TFT Panel Power Supply with Gate Modulation and VCOM

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Fabricante Electrônico	AD [Analog Devices]

Página de início	http://www.analog.com

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Preliminary Technical Data

ADD8733

Rev. PrA | Page 3 of 16

SPECIFICATIONS

STEP-UP SWITCHING REGULATOR SPECIFICATIONS

VVIN = VSD_VIN = 12 V, L1= 15 μH, TA = 25°C, fOSC = 650 kHz, unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

SUPPLY

Input Voltage

VIN

8.0

16.5

V

Maximum Duty Cycle

70

%

OUTPUT

Output Voltage

VSU_OUT

VIN + 1

20

V

Load Regulation

200 mA ≤ ILOAD ≤ 800 mA, VSU_OUT = 18 V

1

%

Line Regulation

ILOAD = 500 mA, 8 V ≤ VSD_VIN ≤ 16.5 V, VSU_OUT = 18 V

1

%

Overall Regulation

Line, load, temperature

±3

%

Overvoltage Protection

VSU_D

19.5

20

20.5

V

REFERENCE

FB Regulation Voltage

VSU_FB

2.5

V

ERROR AMPLIFIER

Transconductance

gm

100

μA/V

Error Amplifier Open-Loop Voltage Gain

AVSU

1000

V/V

Input Bias Current

IB

100

nA

SWITCH

On Resistance

RDS (ON)SU

100

mΩ

Peak Current Limit

ISUCLSET

3

A

OSCILLATOR

Oscillator Frequency

fOSC

FREQ = GND

650

kHz

FREQ = VSR_OUT1

1200

kHz

1 VSR_OUT pin provides a logic-high output of 5 V.

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