Datasheet

MAX17103/AUO-P1721.14
DC-DC Converter with Integrated Scan Driver,
VGL Controller, Op Amp, and LDO for TFT LCD
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS
(V
IN
= +3V, Circuit of Figure 1, V
OPAS
= +8.5V, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
IN Input-Voltage Range (Note 1) 2.3 5.5 V
IN Undervoltage-Lockout Threshold V
IN
rising, typical hysteresis = 150mV 1.80 2.20 V
IN Standby Current V
ENA
= 0, V
IN
= 5.5V, V
GHON
= 4V, V
GL
= 0 2 mA
V
FB
= 1.3V, LX not switching 2.5
IN Quiescent Current
V
FB
= 1.2V, LX switching 4
mA
GHON Standby Current V
ENA
= 0, V
IN
= 5.5V, V
GHON
= 4V, V
GL
= 0 200 μA
OPAS Shutdown Current V
ENA
= 0, V
IN
= 5.5V, V
GHON
= 4V, V
GL
= 0 30 μA
REFERENCE
REF Output Voltage No external load 1.227 1.252 V
REF Load Regulation 0 < I
LOAD
< 50μA 20 mV
REF Sink Current In regulation 10 μA
STEP-UP REGULATOR
Output-Voltage Range V
IN
15 V
Frequency 1000 1400 kHz
Oscillator Maximum Duty Cycle 91 97 %
FB Regulation Voltage No load, T
A
= +25°C to +85°C 1.227 1.252 V
FB Fault Trip Level Falling edge (Note 2) 1.05 1.15 V
FB Line Regulation V
IN
= 2.5V to 5.5V 0.2 %/V
FB Transconductance I = ±2.5μA at COMP, FB = COMP 75 280 μS
LX Current Limit
V
FB
= 1.2V, duty cycle = 60%, R
ENA
= 10k,
V
LDOO
= 2.5V
1.6 2.4 A
LX On-Resistance I
LX
= 1A 0.5 
Current-Sense Transresistance 0.10 0.30 V/A
Soft-Start Pullup Current 2 6 μA
GATE-OFF LINEAR-REGULATOR CONTROLLER
FBN Fault Trip Level V
FBN
rising (Note 2) 370 470 mV
FBN Regulation Voltage I
DRVN
= 100μA -20 +20 mV
FBN Line-Regulation Error V
IN
= 2.5V to 5.5V, I
DRVN
= 100μA -6 +6 mV
FBN Effective Load-Regulation Error
(Transconductance)
V
DRVN
= -10V, I
DRVN
= 50μA to 1mA 25 mV
DRVN Source Current V
FBN
= 300mV, V
DRVN
= -10V 1 10 mA
GD SWITCH CONTROL
GD Pulldown Resistor UVLO or RST asserted 100 
GD Pullup Resistor UVLO and RST unasserted 100 
GD Low-Voltage Level UVLO or RST asserted, V
GHON
> 11V
V
GHON
- 13.5
V
GHON
- 8
V
GD High-Voltage Level UVLO and RST unasserted, V
GHON
> 8V V
GHON
V