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 (continued)

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

PARAMETER

VCOM BUFFER

Supply Voltage

OPAS Supply Current

Output-Voltage Swing High

CONDITIONS

VOPAS

VPOS = VOPAS/2, no load

IOUT = 100μA

IOUT = 75mA

MIN TYP MAX UNITS

6

15

V

5

mA

VOPAS VOPAS

- 0.02 - 0.005

V

VOPAS

- 1.5

Output-Voltage Swing Low

IOUT = 100μA

IOUT = 75mA

Slew Rate

Short-Circuit Current

Short to VOPAS/2, sourcing

Short to VOPAS/2, sinking

Input Offset Voltage

VOLTAGE DETECTOR

Operating Voltage

VDET Input Bias Current

TA = +25°C

VDET Threshold

VDET falling, hysteresis = 50mV

Adjustable Delay Time Coefficient K TD = k(
) x C(F)

RST Sink Current

VRST = 0.4V

LEVEL SHIFTERS

GHON-to-VGL Voltage Range

GHON Input-Voltage Range

VGHON - VVGL

VGL Input-Voltage Range

GHON Supply Current (VGHON = 23V) CK, XCK, ST are low

VGL Supply Current (VVGL = -6V)

CK, XCK, ST are low

CKH, XCKH, STH Output-Voltage

Low

IOUT = 10mA (7
typ)

20

mV

1.8

V

12

V/μs

115

mA

115

-15

+15

mV

1.6

5.5

V

-1

+1

μA

-2%

+2%

V

80

160

k

1

mA

40

V

12

35

V

-15

-3

V

2

mA

2

mA

VVGL

V

+ 0.25

CKH, XCKH, STH Output-Voltage

High

IOUT = 10mA (20
typ)

VGHON

- 0.5

V

CKH, XCKH, STH Rise Time

CKH, XCKH, STH Fall Time

CKH, XCKH Maximum

Operating Frequency

CLOAD = 5nF, CS = high, VGHON = 25V, VVGL = -15V

CLOAD = 5nF, CS = high, VGHON = 25V, VVGL = -15V

2

μs

1

μs

100

kHz

VGLC Output-Voltage Low

IOUT = 10mA

VVGL +

0.25

V

VGLC Output-Voltage High

IOUT = 10mA

VGHON -

V

0.5

6 _______________________________________________________________________________________

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