MAX1513 datasheet(6/28 Pages) MAXIM

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TFT-LCD Power-Supply Controllers

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ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, VIN = 3V, VSUPB = 10V, SDFR = IN, CREF = 0.22µF, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LOGIC LINEAR-REGULATOR CONTROLLER (REG L)

FBL Regulation Voltage

VFBL

IDRVL = 1mA

1.225

1.275

FBL Input Bias Current

VFBL = 1.5V

-250

+250

FBL Effective Load-Regulation

Error (Transconductance)

VDRVL = 3V, IDRVL = 0.5mA to 10mA

-2

DRVL Sink Current

IFBL

VFBL = 1.1V, VDRVL = VIN

GATE-OFF LINEAR-REGULATOR CONTROLLER (REG N)

FBN Regulation Voltage

VFBN

IDRVN = 0.2mA

220

280

FBN Input Bias Current

VFBN = 0V

-250

+250

FBN Effective Load-Regulation

Error (Transconductance)

VDRVN = -10V, IDRVN = 0.1mA to 2mA

DRVN Source Current

IFBN

VFBN = 0.3V, VDRVN = -10V

BUFFER AMPLIFIER

SUPB Supply Range

VSUPB

4.5

13.0

SUPB Supply Current

ISUPB

No load, VFBPB = 4V

1.1

FBPB Input Offset Voltage

VOS

VFBPB = VSUPB / 2

FBPB Input Bias Current

IBIAS

VFBPB = VSUPB / 2

FBPB Input Common-Mode

Range

VCM

VSUPB

Output-Voltage-Swing High

VOH

IOUTB = 5mA

VSUPB - 150

Output-Voltage-Swing Low

VOL

IOUTB = -5mA

150

CONTROL INPUTS AND OUTPUTS

SDFR = IN (1.5MHz operation)

0.9

× VIN

SDFR = unconnected (430kHz operation)

0.69

× VIN

0.77

× VIN

SDFR = REF (750kHz operation)

1.00

1.35

SDFR Input Level

SDFR = GND (LCD shutdown)

0.5

SDFR = IN

+3.0

SDFR = REF

-3.0

SDFR Input Current

SDFR = GND

-3.0

µA

Note 1: Specifications to -40°C are guaranteed by design, not production tested.

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