MAX1516 Datasheet, PDF (5/26 Pages) Maxim Integrated Products – TFT-LCD DC-DC Converters with Operational Amplifiers

TFT-LCD DC-DC Converters with
Operational Amplifiers
ELECTRICAL CHARACTERISTICS
(V_IN = 3V, V_SUP = 8V, PGND = AGND = BGND = 0, I_REF = 25µA, T_A = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
IN Supply Range
IN Undervoltage-Lockout
Threshold
SYMBOL
V_IN
CONDITIONS
V_UVLO V_IN rising, typical hysteresis = 150mV
MIN
2.6
2.265
MAX
5.5
2.715
IN Quiescent Current
REF Output Voltage
MAIN STEP-UP REGULATOR
Output Voltage Range
Operating Frequency
FB Regulation Voltage
FB Line Regulation
FB Input Bias Current
FB Transconductance
LX On-Resistance
LX Current Limit
OPERATIONAL AMPLIFIERS
SUP Supply Range
SUP Supply Current
Input Offset Voltage
Input Common-Mode Range
V_FB = V_FBP = 1.4V, V_FBN = 0,
LX not switching
I_IN
V_FB = 1.1V, V_FBP = 1.4V, V_FBN = 0,
LX switching
-2µA < I_REF < 50µA, V_IN = 2.6V to 5.5V
V_MAIN
f_OSC
V_FB
R_LX(ON)
I_LIM
No load
V_IN = 2.6V to 5.5V
V_FB = 1.4V
∆I_COMP = 5µA
V_FB = 1V, duty cycle = 65%
V_SUP
I_SUP
V_OS
V_CM
Buffer configuration,
V_POS_ = 4V, no load
MAX1518
MAX1517
MAX1516
(V_NEG_, V_POS_, V_OUT_) ≅ V_SUP / 2
Output Voltage Swing, High
V_OH
I_OUT_ = 100µA
I_OUT_ = 5mA
Output Voltage Swing, Low
Short-Circuit Current
V_OL
I_OUT_ = -100µA
I_OUT_ = -5mA
To V_SUP / 2
Source
Sink
Output Source and Sink Current
(V_NEG_ , V_POS_, V_OUT_) ≅ V_SUP / 2,
|∆V_OS| < 10mV
GATE-ON LINEAR-REGULATOR CONTROLLER
FBP Regulation Voltage
V_FBP I_DRVP = 100µA
1.222
V_IN
1020
1.212
-40
75
2.5
4.5
0
V_SUP -
15
V_SUP -
150
50
50
40
1.218
0.8
11
1.269
13
1380
1.250
±0.15
+40
300
250
3.5
13.0
4.8
3.0
1.1
12
V_SUP
15
150
1.269
UNITS
V
V
mA
V
V
kHz
V
%/ V
nA
µS
mΩ
A
V
mA
mV
V
mV
mV
mA
mA
V
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