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MAX8798 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part # MAX8798
Description  Internal-Switch Boost Regulator with Integrated 3-Channel Scan Driver for TFT LCDs
PDF  31 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX8798 Datasheet(HTML) 3 Page - Maxim Integrated Products

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Internal-Switch Boost Regulator with
Integrated 3-Channel Scan Driver for TFT LCDs
_______________________________________________________________________________________
3
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OPERATIONAL AMPLIFIER
BOOST Supply Range
5
18
V
BOOST Overvoltage
Fault Threshold
(Note 2)
18.1
19
19.9
V
BOOST Undervoltage
Fault Threshold
(Note 3)
1.0
1.4
V
Large-Signal Voltage Gain
1V < (VNEG, VPOS) < (VBOOST - 1V)
120
dB
Common-Mode Rejection Ratio
1V < (VNEG, VPOS) < (VBOOST - 1V)
75
dB
1V < (VNEG, VPOS) < (VBOOST - 1V)
-25
-5
+25
Input Offset Voltage
VBOOST/2
-15
-2.5
+12
mV
Input Bias Current
1V < (VNEG, VPOS) < (VBOOST - 1V)
-50
+50
nA
Input Common-Mode
Voltage Range
1V < (VNEG, VPOS) < (VBOOST - 1V)
0
VBOOST
V
VCOM Output Voltage
Swing High
IVCOM = 5mA
VBOOST
- 100
VBOOST
- 50
mV
VCOM Output Voltage Swing Low
IVCOM = -5mA
50
100
mV
VCOM Output-Current High
VVCOM = VBOOST - 1V
-75
mA
VCOM Output-Current Low
VVCOM = 1V
+75
mA
Slew Rate
1V < (VNEG, VPOS) < (VBOOST - 1V)
40
V/μs
-3dB Bandwidth
1V < (VNEG, VPOS) < (VBOOST - 1V)
20
MHz
Short to VBOOST/2, sourcing
50
150
VCOM Short-Circuit Current
Short to VBOOST/2, sinking
50
150
mA
PROGRAMMABLE VCOM CALIBRATOR
GON Input Range
16.1
45.0
V
GON Threshold to Enable Program
Rising edge, 60mV hysteresis
15.6
16.0
V
SET Voltage Resolution
7
Bits
SET Differential Nonlinearity
Monotonic overtemperature
-2
+2
LSB
SET Zero-Scale Error
-1
+1
+2
LSB
SET Full-Scale Error
-3
+3
LSB
SET Current
120
μA
To GND, VBOOST = 18V
8.5
170.0
SET External Resistance
(Note 4)
To GND, VBOOST = 6V
2.5
50.0
k
VSET/VBOOST Voltage Ratio
DAC full scale
0.05
V/V
OUT Leakage Current
When OUT is off
1
nA
OUT Settling Time
To ±0.5 LSB error band
20
μs
OUT Voltage Range
VSET +
0.5V
18
V
EEPROM Write Cycles
(Note 5)
1000
—
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VDD = VSHDN = +3V, circuit of Figure 2, VBOOST = 8V, VGON = 23V, VGOFF = -12V, VPOS = 0, VNEG = 1.5V, VOE = VCPV =
VSTV = VOECON = 0, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)



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