Low-Cost, Linear-Regulator

LCD Panel Power Supplies

4

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ELECTRICAL CHARACTERISTICS (continued)

+25°C, unless otherwise noted.)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

3

6

Ω

DRVN n-Channel On-Resistance

20

k

Ω

FBN Fault Trip Level

Rising edge

700

mV

Negative Charge-Pump Soft-Start

Period

2

2.73

ms

SEQUENCE CONTROL

SHDN Input Low Voltage

0.6

V

SHDN Input High Voltage

2.0

V

SHDN Input Current

1µA

DLP Capacitor Charge Current

4

5

6

µA

DLP Turn-On Threshold

2.375

2.5

2.625

V

SHDN = low or fault tripped; DLP, FBP, FBN to GND

10

Ω

Pin Discharge Switch On-Resistance

SHDN = low or fault tripped;

MODE, OUTL, OUTB to GND

MAX8710, SHDN = low or fault trip; GON to GND

1k

Ω

POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES (MAX8710/MAX8761)

CTL Input Low Voltage

0.6

V

CTL Input High Voltage

2.0

V

CTL Input Leakage Current

-1

+1

µA

CTL to GON Rising Propagation

Delay

to GON = 20%

100

ns

CTL to GON Falling Propagation

Delay

0 step, DRN falling, no load on DRN and GON,

100

ns

SRC Input Voltage Range

28

V

SRC Input Current

150

250

µA

DRN Input Current

26

40

µA

SRC Switch On-Resistance

20

40

Ω

DRN Switch On-Resistance

60

Ω

MODE Switch On-Resistance

1k

Ω

Mode 2 MODE Capacitor Charge

Current

42

50

64

µA

MODE Voltage Threshold for

Enabling DRN Switch Control in

Mode 2

2.3

2.5

2.7

V

MODE Current-Source Stop Voltage

Threshold

3.3

3.5

3.7

V

THR to GON Voltage Gain

9.4

10

10.6

V/V

GON Falling Slew Rate

13.5

V/µs