MAX8798AETX+T Maxim Integrated Products, MAX8798AETX+T Datasheet - Page 6

• Manufacturer Part Number: MAX8798AETX+T
• Description: Display Drivers Internal-Switch Boos t Regulator with Int
• Manufacturer: Maxim Integrated Products

Specifications of MAX8798AETX+T

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Internal-Switch Boost Regulator with
Integrated 3-Channel Scan Driver for TFT LCDs
ELECTRICAL CHARACTERISTICS (continued)
(V
V
6
BOOTSTRAP LINEAR REGULATOR (VL)
VL Output Voltage
VL Undervoltage Lockout
MAIN DC-DC CONVERTER
BOOST Supply Current
Operating Frequency
Oscillator Maximum Duty Cycle
FB Regulation Voltage
FB Line Regulation
FB Transconductance
FB Fault-Timer Trip Threshold
LX On-Resistance
LX Current Limit
OPERATIONAL AMPLIFIER
BOOST Supply Range
BOOST Overvoltage Fault Threshold (Note 2)
BOOST Undervoltage Fault Threshold (Note 3)
Input Offset Voltage
Input Common-Mode Voltage Range
VCOM Output-Voltage Swing High
VCOM Output-Voltage Swing Low
VCOM Short-Circuit Current
PROGRAMMABLE VCOM CALIBRATOR
GON Input Range
GON Threshold to Enable Program
SET Voltage Resolution
SET Differential Nonlinearity
SET Zero-Scale Error
SET Full-Scale Error
SET Current
SET External Resistance
(Note 4)
OUT Voltage Range
EEPROM Write Cycles
STV
IN
_______________________________________________________________________________________
= V
= V
DD
OECON
= V
PARAMETER
SHDN
= 0, T
= +3V, circuit of Figure 2, V
A
= -40°C to +85°C, unless otherwise noted.) (Note 6)
I
V
LX not switching, no load on VL
LX switching, no load on VL
V
Falling edge
I
Duty cycle = 65%
1V < (V
1V < (V
I
I
Short to V
Short to V
Rising edge, 60mV hysteresis
Monotonic overtemperature
To GND, V
To GND, V
(Note 5)
VL
LX
VCOM
VCOM
VL
IN
I = 5μA at COMP
= 1.2A
= 100μA
= 1.8V to 5.5V, FB to COMP
rising, typical hysteresis 100mV
= 5mA
= -5mA
NEG
NEG
BOOST
BOOST
BOOST
BOOST
BOOST
, V
, V
POS
POS
/2, sourcing
/2, sinking
= 8V, V
= 18V
= 6V
) < (V
) < (V
CONDITIONS
BOOST
BOOST
GON
= 23V, V
- 1V)
- 1V)
GOFF
= -12V, V
POS
V
V
1.216
-0.15
1000
BOOST
3.15
0.96
18.1
- 100
16.1
0.5V
MIN
SET
990
2.4
1.6
-25
8.5
2.5
88
70
50
50
-2
-1
-3
5
0
7
= 0, V
+
NEG
TYP
= 1.5V, V
V
+0.15
BOOST
1.254
170.0
MAX
1350
3.45
1.04
19.9
45.0
16.0
50.0
+25
280
300
100
120
3.0
2.2
1.4
+2
+2
+3
96
18
18
2
4
OE
= V
UNITS
kHz
Bits
LSB
LSB
LSB
%/V
m
mA
mV
mV
mV
mA
k
μS
μA
CPV
%
—
V
V
V
V
A
V
V
V
V
V
V
V
=