Datasheet

MAX17014
Low-Cost Multiple-Output
Power Supply for LCD TVs
______________________________________________________________________________________ 13
Typical Operating Characteristics (continued)
(Circuit of Figure 1. V
IN
= V
INL
= V
SUP
= 12V, AV
DD
= 16V, V
GON
= 34.5V, V
GOFF
= -6V, V
OUT1
= 3.3V, T
A
= +25°C, unless other-
wise noted.)
OPERATIONAL AMPLIFIER RAIL-TO-RAIL
INPUT/OUTPUT
MAX17014 toc22
4.0µs/div
A: INPUT SIGNAL, 5V/div
B: OUTPUT SIGNAL, 5V/div
A
0V
0V
B
OPERATIONAL AMPLIFIER
LOAD-TRANSIENT RESPONSE
MAX17014 toc23
200ns/div
A: OUTPUT CURRENT, 50mA/div
B: OUTPUT VOLTAGE, 500mV/div
A
50mA
0mA
-50mA
8V
B
OPERATIONAL AMPLIFIER
LARGE-SIGNAL RESPONSE
MAX17014 toc24
400ns/div
A: INPUT SIGNAL, 5V/div
B: OUTPUT SIGNAL, 5V/div
A
0V
0V
B
OPERATIONAL AMPLIFIER
SMALL-SIGNAL RESPONSE
MAX17014 toc25
100ns/div
A: INPUT SIGNAL, 200mV/div
B: OUTPUT SIGNAL, 200mV/div
A
0V
0V
B
V
IN
SUPPLY CURRENT vs. V
IN
VOLTAGE
MAX17014 toc26
V
IN
VOLTAGE (V)
V
IN
SUPPLY CURRENT (mA)
10 12 13 14 15
3
2
1
4
5
6
0
816911
EN1 = EN2 = VL
EN1 = EN2 = GND
INL SUPPLY CURRENT vs. TEMPERATURE
MAX17014 toc27
TEMPERATURE (°C)
INL SUPPLY CURRENT (mA)
-15 35 60
1.5
1.0
0.5
2.0
3.0
2.5
3.5
0
-40 8510
EN1 = VL, EN2 = GND
EN1 = EN2 = GND
HIGH-VOLTAGE SWITCH
CONTROL FUNCTION (MODE 1)
MAX17014 toc28
4.00µs/div
A: V
CTL
, 5V/div
B: V
MODE
, 5V/div
C: V
GON
, 10V/div
A
B
0V
0V
0V
C
C
GON
= 2.2nF
HIGH-VOLTAGE SWITCH
CONTROL FUNCTION (MODE 2)
MAX17014 toc29
4.00µs/div
A: V
CTL
, 5V/div
B: V
MODE
, 2V/div
C: V
GON
, 10V/div
A
B
0V
0V
0V
C
C
GON
= 2.2nF