Datasheet

MAX17103/AUO-P1721.14
DC-DC Converter with Integrated Scan Driver,
VGL Controller, Op Amp, and LDO for TFT LCD
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= +3V, Circuit of Figure 1, V
OPAS
= +8.5V, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
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.
IN, RST to AGND ...................................................-0.3V to +7.5V
FB, FBN, CD, ENA, VDET, SS, CS, ST,
CK, XCK to AGND...................................-0.3V to (V
IN
+ 0.3V)
LDOADJ, LDOO, COMP, REF to AGND......-0.3V to (V
IN
+ 0.3V)
PGND to AGND .....................................................-0.3V to +0.3V
LX, OPAS to PGND.................................................-0.3V to +18V
DRVN to AGND.............................................-20V to (V
IN
+ 0.3V)
GHON to PGND......................................................-0.3V to +40V
VGL to PGND ........................................................ -20V to +0.3V
GHON to VGL…………………………………………-0.3V to +45V
GD to PGND ..........................................-0.3V to (V
GHON
+ 0.3V)
GD to VGHON ........................................................-15V to +0.3V
VGLC, STH, CKH, XCKH ........(-0.3V + V
VGL
) to (V
GHON
+ 0.3V)
OUT, POS to PGND ................................-0.3V to (V
OPAS
+ 0.3V)
POS to OUT ...........................................................-7.5V to +7.5V
OUT Maximum Continuous Output Current......................±75mA
GHON, STH, VGL, CKH, and XCKH RMS Current Rating 120mA
LX, PGND RMS Current Rating.............................................1.6A
Continuous Power Dissipation (T
A
= +70°C)
32-Pin TQFN (derate 24.9mW/°C above +70°C).......1990mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER CONDITIONS MIN TYP MAX UNITS
IN Input-Voltage Range 2.3 5.5 V
IN Undervoltage Lockout
V
IN
rising, typical hysteresis = 150mV 1.80 2.00 2.20 V
IN Standby Current V
ENA
= 0, V
IN
= 5.5V, V
GHON
= 4V, V
GL
= 0 0.7 2 mA
GHON Standby Current V
ENA
= 0, V
IN
= 5.5V, V
GHON
= 4V, V
GL
= 0 100 200 μA
OPAS Shutdown Current V
ENA
= 0, V
IN
= 5.5V, V
GHON
= 4V, V
GL
= 0 10 30 μA
V
FB
= 1.3V, LX not switching 1 2.5
IN Quiescent Current
V
FB
= 1.2V, LX switching 2 4
mA
Duration to Trigger Fault Condition 160 ms
Thermal Shutdown Temperature rising +160 °C
REFERENCE
REF Output Voltage No external load 1.227 1.240 1.252 V
REF Load Regulation 0 < I
LOAD
< 50μA mV
REF Sink Current In regulation -20 +10 μA
STEP-UP REGULATOR
Output-Voltage Range V
IN
15 V
Frequency 1000 1200 1400 kHz
Oscillator Maximum Duty Cycle 91 94 97 %
FB Regulation Voltage No load 1.227 1.240 1.252 V
FB Fault Trip Level Falling edge 1.05 1.10 1.15 V
Overvoltage Protection OPAS rising (Note 1) 16.5 17 18 V
FB Load Regulation 0 < I
LOAD
< full load, transient only -0.5 %
V
IN
= 2.5V to 5.5V, T
A
= +25°C 0.1 0.15
FB Line Regulation
V
IN
= 2.5V to 5.5V, T
A
= 0°C to +85°C 0.2
%/V
FB Input Bias Current V
FB
= 1.3V, T
A
= +25°C 65 200 nA
FB Transconductance I = ±2.5μA at COMP, FB = COMP 75 160 280 μS
FB Voltage Gain FB to COMP 700 V/V
LX Current Limit V
FB
= 1.2V, duty cycle = 60%, R
ENA
= 10k, V
LDOO
= 2.5V 1.6 2 2.4 A