Step-Up Regulator, Internal Charge Pumps, Switch

Control, and Operational Amplifier for TFT LCDs

6

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Note 1: Step-up regulator switching is disabled above the threshold. This fault is not latched.

Note 2: -40°C specs are guaranteed by design, not production tested.

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES

CTL Input-Low Voltage

0.8

V

CTL Input-High Voltage

1.8

V

GON-to-POUT Switch On-Resistance

20

Ω

GON-to-POUT Switch Saturation

180

mA

GON-to-DRN Switch On-Resistance

GDEL = 1.5V, CTL = 0V

60

Ω

GON-to-DRN Switch Saturation Current

35

mA

OPERATIONAL AMPLIFIERS

SUP Supply Range

619

V

SUP Overvoltage Fault Threshold

(Note 1)

19.1

21.0

V

SUP Supply Current

15

mA

Input Offset Voltage

13

mV

Input Common-Mode Voltage Range

0

V

50

Output-Voltage Swing High

300

mV

50

Output-Voltage Swing Low

300

mV

HVS FUNCTION

HVS Input-Low Voltage

0.8

V

HVS Input-High Voltage

1.8

V

HVS Input Pulldown Resistance

5

50

k

Ω

RSET Output On-Resistance

20

Ω