Datasheet

Multi-Output Power Supplies with VCOM Amplifier
and High-Voltage Gamma Reference for LCD TVs
MAX17126/MAX17126A
14 _____________________________________________________________________________________
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
OPERATIONAL AMPLIFIER RAIL-TO-RAIL
INPUT/OUTPUT WAVEFORMS
MAX17126 toc21
0V
0V
4Fs/div
V
OPP
5V/div
V
COM
5V/div
OPERATIONAL AMPLIFIER LOAD
TRANSIENT RESPONSE
MAX17126 toc22
0V
0A
1Fs/div
V
COM
(AC-COUPLED)
500mV/div
I
VCOM
100mA/div
OP AMP SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX17126 toc20
VOP VOLTAGE (V)
VOP SUPPLY CURRENT (mA)
191817161514131211109
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.30
8 20
POWER-UP SEQUENCE OF ALL
SUPPLY OUTPUTS
MAX17126 toc19
0V
0V
0V
0V
0V
0V
0V
0V
0V
10ms/div
V
IN
V
OUT
V
GOFF
V
AVDD
V
GON
V
COM
V
DLY1
V
GHM
V
IN
= 10V/div
V
OUT
= 5V/div
V
GOFF
= 10V/div
V
AVDD
=10V/div
V
GON
= 20V/div
V
COM
= 10V/div
V
DLY1
= 5V/div
V
GHM
= 50V/div