MAX9551 datasheet(3/12 Pages) MAXIM

Part #	MAX9551

Description	High-Current VCOM Drive Buffers for TFT LCDs

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Current VCOM Drive Buffers

for TFT LCDs

_______________________________________________________________________________________

3

Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 16V, GND = 0V, VCM = VOUT = VDD / 2, CL = 1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at

TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

AC CHARACTERISTICS

Settling Time

tS

Settling to 0.1% of VOUT, IL = 0 to 600mA,

CL = 1µF, RS = 2.2

Ω, CS = 0.1µF

(Figure 1)

2.0

µs

Input Capacitance

CIN

1.5

pF

IOUT = ±50mA

13

Transconductance

gm

IOUT = ±500mA

42

S

VDD = 7V, VIN = 1.5V

pulse for 100µs

±200

±290

Transient Output Current

IOUTMAX

AV = 1

VDD = 16V, VIN = 1.5V

pulse for 100µs

±600

±830

mA

Typical Operating Characteristics

(VDD = 16V, GND = 0V, VCM = VOUT = VDD / 2, CL = 1µF, TA = +25°C, unless otherwise noted.)

INPUT OFFSET VOLTAGE DEVIATION

vs. SUPPLY VOLTAGE

VDD (V)

20

15

10

-0.1

0

0.1

0.2

0.3

0.4

0.5

-0.2

525

TA = -40°C

TA = +25°C

TA = +85°C

INPUT OFFSET VOLTAGE DEVIATION

vs. TEMPERATURE

TEMPERATURE (°C)

75

50

25

0

-25

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

0.6

-0.4

-50

100

TRANSCONDUCTANCE

vs. OUTPUT CURRENT

OUTPUT CURRENT (mA)

400

200

0

-200

-400

10

20

30

40

50

60

0

-600

600

TA = -40°C

TA = +25°C

TA = +85°C

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