MAX8795AETJ-T View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX8795AETJ-T Datasheet PDF : 31 Pages
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TFT-LCD DC-DC Converter with
Operational Amplifiers
ELECTRICAL CHARACTERISTICS
(VIN = 3V, VMAIN = VSUP = 14V, VPGND = VAGND = VBGND = 0V, IREF = 25µA, TA = -40°C to +85°C, unless otherwise noted.) (Note 3)
PARAMETER
IN Supply Range
IN Undervoltage-Lockout
Threshold
IN Quiescent Current
REF Output Voltage
REF Undervoltage-Lockout
Threshold
MAIN STEP-UP REGULATOR
Output Voltage Range
Operating Frequency
FB Regulation Voltage
FB Line Regulation
FB Transconductance
LX On-Resistance
LX Current Limit
OPERATIONAL AMPLIFIERS
SUP Supply Range
SUP Overvoltage Fault Threshold
SUP Supply Current
Input Offset Voltage
Input Common-Mode Voltage
Range
SYMBOL
VIN
(Note 2)
CONDITIONS
VUVLO VIN rising, typical hysteresis = 150mV
VFB = VFBP = 1.3V, VFBN = 0V,
LX not switching
IIN
VFB = 1.2V, VFBP = 1.4V, VFBN = 0V,
LX switching
No external load
Rising edge; typical hysteresis = 160mV
VMAIN
fOSC
VFB
RLX(ON)
ILIM
No load
VIN = 2.5V to 6V
∆ICOMP = ±2.5µA
ILX = 200mA
VFB = 1.2V, duty cycle = 75%
VSUP
ISUP
VOS
VCM
Buffer configuration, VPOS_ = VSUP / 2,
no load
(VNEG_, VPOS_, IOUT_) = ≅ VSUP / 2
Output Voltage Swing, High
VOH IOUT_ = 5mA
Output Voltage Swing Low
Short-Circuit Current
VOL
IOUT_ = -5mA
To VSUP / 2
Source
Sink
GATE-ON LINEAR-REGULATOR CONTROLLER
FBP Regulation Voltage
VFBP IDRVP = 100µA
FBP Effective Load-Regulation
Error (Transconductance)
VDRVP = 10V, IDRVP = 50µA to 1mA
FBP Line (IN) Regulation Error
DRVP Sink Current
IDRVP
IDRVP = 100µA, 2.5V < VIN < 6V
VFBP = 1.1V, VDRVP = 10V
MIN
2.5
2.05
1.218
VIN
900
1.198
75
2.5
6
18.0
0
VSUP -
100
75
75
1.210
1
MAX
6.0
2.45
UNITS
V
V
1.0
mA
3
1.277
V
1.15
V
18
V
1400 kHz
1.260
V
±0.4
%/ V
280
µS
260
mΩ
3.5
A
18
V
19.9
V
5
mA
12
mV
VSUP
V
mV
100
mA
1.280
V
-1.5
%
10
mV
mA
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