ADD8754_15 datasheet(3/28 Pages) AD

部件名	ADD8754

功能描述	LCD Panel Power, V, and Gate Modulation

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制造商	AD [Analog Devices]

网页	http://www.analog.com

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3 / 28 page

ADD8754

Rev. 0 | Page 3 of 28

SPECIFICATIONS

STEP-UP SWITCHING REGULATOR SPECIFICATIONS

VIN_1 = VIN_2 = SHDN = 5 V, VOUT

1 = VDD_1 = VDD_2 = 14 V, TA = 25°C, FREQ = GND, unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

SUPPLY

Input Voltage Range

VIN

3.0

5.5

V

OUTPUT1

Output Voltage Range

VOUT1

20

V

Load Regulation

10 mA ≤ ILOAD ≤ 150 mA, VOUT1 = 10 V

200

μV/mA

Line Regulation

ILOAD = 350 mA, 4.5 V ≤ VIN_1 ≤ 5.5 V

mV

Load Regulation

10 mA ≤ ILOAD ≤ 150 mA, VOUT1 = 10 V

200

μV/mA

Line Regulation

ILOAD = 150 mA, 3.0 V ≤ VIN_1 ≤ 5.5 V

mV

Overall Regulation

Line, load, temperature (−40°C ≤ TA ≤ +85°C)

−3

+3

%

REFERENCE

Feedback Voltage

VFB

1.200

1.211

1.220

V

ERROR AMPLIFIER

Transconductance

GMEA

100

μA/V

Gain

AV

1000

V/V

Input Bias Current

IB

225

nA

SWITCH

On Resistance

RDS (ON)

170

mΩ

Leakage Current

ILKG

VLX = 14 V, SHDN = GND

0.5

μA

Peak Current Limit

ICL

2.6

A

OSCILLATOR

Oscillator Frequency

FOSC

FREQ = GND

650

kHz

FREQ = VIN_1

1.2

MHz

Maximum Duty Cycle

DMAX

VFB = 1 V

90

95

%

SOFT START

Peak Current

SS = GND

2.5

μA

1 Refer to the Figure 23.

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