AUO-P1721.14 Ver la hoja de datos (PDF) - Maxim Integrated

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AUO-P1721.14

DC-DC Converter with Integrated Scan Driver, VGL Controller, Op Amp, and LDO for TFT LCD

Maxim Integrated 

DC-DC Converter with Integrated Scan Driver,

VGL Controller, Op Amp, and LDO for TFT LCD

ELECTRICAL CHARACTERISTICS

(VIN = +3V, Circuit of Figure 1, VOPAS = +8.5V, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)

PARAMETER

CONDITIONS

IN Input-Voltage Range

(Note 1)

IN Undervoltage-Lockout Threshold VIN rising, typical hysteresis = 150mV

IN Standby Current

VENA = 0, VIN = 5.5V, VGHON = 4V, VGL = 0

IN Quiescent Current

VFB = 1.3V, LX not switching

VFB = 1.2V, LX switching

GHON Standby Current

VENA = 0, VIN = 5.5V, VGHON = 4V, VGL = 0

OPAS Shutdown Current

VENA = 0, VIN = 5.5V, VGHON = 4V, VGL = 0

REFERENCE

REF Output Voltage

No external load

REF Load Regulation

0 < ILOAD < 50μA

REF Sink Current

In regulation

STEP-UP REGULATOR

Output-Voltage Range

Frequency

Oscillator Maximum Duty Cycle

FB Regulation Voltage

No load, TA = +25°C to +85°C

FB Fault Trip Level

Falling edge (Note 2)

FB Line Regulation

VIN = 2.5V to 5.5V

FB Transconductance

I = ±2.5μA at COMP, FB = COMP

LX Current Limit

VFB = 1.2V, duty cycle = 60%, RENA = 10k,

VLDOO = 2.5V

LX On-Resistance

ILX = 1A

Current-Sense Transresistance

Soft-Start Pullup Current

GATE-OFF LINEAR-REGULATOR CONTROLLER

FBN Fault Trip Level

FBN Regulation Voltage

VFBN rising (Note 2)

IDRVN = 100μA

FBN Line-Regulation Error

VIN = 2.5V to 5.5V, IDRVN = 100μA

FBN Effective Load-Regulation Error

(Transconductance)

VDRVN = -10V, IDRVN = 50μA to 1mA

DRVN Source Current

VFBN = 300mV, VDRVN = -10V

GD SWITCH CONTROL

GD Pulldown Resistor

GD Pullup Resistor

UVLO or RST asserted

UVLO and RST unasserted

GD Low-Voltage Level

UVLO or RST asserted, VGHON > 11V

GD High-Voltage Level

UVLO and RST unasserted, VGHON > 8V

MIN

2.3

1.80

1.227

VIN

1000

91

1.227

1.05

75

1.6

0.10

2

370

-20

-6

1

VGHON

- 13.5

TYP

MAX

5.5

2.20

2

2.5

4

200

30

UNITS

V

V

mA

mA

μA

μA

1.252

V

20

mV

10

μA

15

V

1400 kHz

97

%

1.252

V

1.15

V

0.2

%/V

280

μS

2.4

A

0.5



0.30

V/A

6

μA

470

mV

+20

mV

+6

mV

25

mV

10

mA

100



100



VGHON

V

-8

VGHON

V

_______________________________________________________________________________________ 5

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