Datasheet
Multi-Output Power Supplies with VCOM Amplifier
and High-Voltage Gamma Reference for LCD TVs
MAX17126/MAX17126A
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
INVL
= V
IN2
=
12V, V
VOP
=
V
VREF_I
=
15V, T
A
= 0°C to +85°C. Typical values are at T
A
= +25NC, unless oth-
erwise noted.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
VOP Overvoltage Fault
Threshold
V
VOP
= rising, hysteresis = 200mV (Note 2) 20.1 21 22 V
VOP Supply Current Buffer configuration, V
OPP
= V
OPN
= VOP/2, no load 2 4 mA
Input Offset Voltage 2V < (V
OPP
, V
OPN
) < (V
VOP
- 2V) 3 14 mV
Input Bias Current 2V < (V
OPP
, V
OPN
) < (V
VOP
- 2V) -1 +1
FA
Input Common-Mode
Voltage Range
0 VOP V
Input Common-Mode
Rejection Ratio
2V < (V
OPP
, V
OPN
) < (V
VOP
- 2V) 80 dB
Output Voltage Swing High I
OPO
=
25mA
VOP
-
320
VOP
-
150
mV
Output Voltage Swing Low I
OPO
=
-25mA 150 300 mV
Large-Signal Voltage Gain 2V < (V
OPP
, V
OPN
) < (V
OP
- 2V) 80 dB
Slew Rate 2V < (V
OPP
, V
OPN
) < (V
OP
- 2V) 45
V/Fs
-3dB Bandwidth 2V < (V
OPP
, V
OPN
) < (V
OP
- 2V) 20 MHz
Short-Circuit Current
Short to V
VOP
/2, sourcing 200
mA
Short to V
VOP
/2, sinking 200
HIGH-VOLTAGE SWITCH ARRAY
VGH Supply Range 35 V
VGH Supply Current 150 300
FA
VGHM-to-VGH Switch
On-Resistance
V
DLY1
= 2V, GVOFF = VL 5 10
I
VGHM-to-VGH Switch
Saturation Current
V
VGH
- V
VGHM
> 5V 150 390 mA
VGHM-to-DRN Switch
On-Resistance
V
DLY1
= 2V, GVOFF = GND 20 50
I
VGHM-to-DRN Switch
Saturation Current
V
VGHM
- V
DRN
> 5V 75 200 mA
VGHM-to-GND Switch
On-Resistance
DLY1 = GND 1.0 2.5 4.0
kI
GVOFF Input Low Voltage 0.6 V
GVOFF Input High Voltage 1.6 V
GVOFF Input Current V
GVOFF
= 0V or VL, T
A
= +25°C -1 +1
FA
GVOFF-to-VGHM Rising
Propagation Delay
1kI from DRN to CPGND, V
GVOFF
= 0V to VL step, no
load on VGHM, measured from GVOFF = 2V to VGHM
= 20%
100 ns
GVOFF-to-VGHM Falling
Propagation Delay
1kI from DRN to CPGND, V
GVOFF
= VL to 0V step, no
load on VGHM, DRN falling, no load on DRN and VGHM,
measured from V
GVOFF
= 0.6V to VGHM = 80%
200 ns
THR-to-VGHM Voltage Gain 9.4 10 10.6 V/V