MAX8798AETX+T Maxim Integrated Products, MAX8798AETX+T Datasheet - Page 2

• 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

ABSOLUTE MAXIMUM RATINGS
IN, VL, SHDN to AGND .........................................-0.3V to +7.5V
V
OECON, CPV, OE, STV to AGND..........................-0.3V to +4.0V
COMP, FB to AGND ......................................-0.3V to (V
DISH to GND ............................................................-6V to +2.0V
LX to PGND ............................................................-0.3V to +20V
OUT, VCOM, NEG, POS to BGND........-0.3V to (BOOST + 0.3V)
PGND, BGND, AGND to GND...............................-0.3V to +0.3V
GON to AGND ........................................................-0.3V to +50V
GOFF to AGND .............................................-30V to (V
GON to GOFF ......................................................................+70V
BOOST to BGND ....................................................-0.3V to +20V
Internal-Switch Boost Regulator with
Integrated 3-Channel Scan Driver for TFT LCDs
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
V
2
V
V
V
IN Input Voltage Range
IN Quiescent Current
IN Undervoltage Lockout
Thermal Shutdown
BOOTSTRAP LINEAR REGULATOR (VL)
VL Output Voltage
VL Undervoltage Lockout
VL Maximum Output Current
MAIN DC-DC CONVERTER
BOOST Supply Current
Operating Frequency
Oscillator Maximum Duty Cycle
FB Regulation Voltage
FB Load Regulation
FB Line Regulation
FB Input Bias Current
FB Transconductance
FB Voltage Gain
FB Fault Timer Trip Threshold
LX On-Resistance
LX Leakage Current
LX Current Limit
Current-Sense Transresistance
Soft-Start Period
DD
STV
IN
DD
DD
DD
, SDA, SCL, SCLS, WPN, WPP, SET to GND...-0.3V to +4.0V
_______________________________________________________________________________________
= V
Quiescent Current
= V
Input Voltage Range
Undervoltage Lockout
DD
OECON
PARAMETER
= V
SHDN
= 0, T
= +3V, circuit of Figure 2, V
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
V
V
(Note 1)
V
IN rising; typical hysteresis 100mV
Rising edge, hysteresis = 15
I
VL rising, typical hysteresis 200mV
V
LX not switching, no load on VL
LX switching, no load on VL
0 < I
V
V
FB to COMP
Falling edge
I
V
Duty cycle = 65%
VL
LX
DD
DD
IN
FB
IN
FB
I = 5μA at COMP
LX
= 100μA
= 1.2A
= 3V, V
= 1.8V to 5.5V, FB to COMP
= 1.1V
= 1.25V
= 18V
= 3V
rising; typical hysteresis 100mV
LOAD
< 200mA, transient only
FB
BOOST
= 1.5V, not switching
IN
L
+ 0.3V)
+ 0.3V)
= 8V, V
CONDITIONS
GON
o
C
CKV, CKVB, STVP, CKVCS,
LX, PGND RMS Current Rating.............................................2.4A
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
= 23V, V
CKVBCS to AGND..................(GOFF - 0.3V) to (GON + 0.3V)
NiPd Lead Frame with Nonconductive Epoxy
36-Pin, 6mm x 6mm Thin QFN
(derate 27.2mW/°C above +70°C) .........................2179.8mW
GOFF
= -12V, V
A
= +25°C.)
POS
1.216
-0.15
3.15
0.96
0.25
MIN
990
1.8
1.8
2.4
1.6
10
88
50
70
= 0, V
A
= +70°C)
NEG
1.235
1170
-0.08
2400
TYP
0.04
0.01
0.42
160
125
160
150
1.3
1.4
3.3
2.7
1.5
1.9
92
-1
4
3
1
3
= 1.5V, V
+0.15
1.254
MAX
1350
1.75
1.75
3.45
1.04
0.55
280
300
200
4.0
6.0
0.1
3.0
2.2
10
96
20
2
4
OE
= V
UNITS
kHz
%/V
m
mA
mA
mA
V/V
V/A
ms
μA
nA
μS
μA
o
CPV
%
%
A
V
V
V
V
V
V
V
V
C
=