MAX8753ETI-T Maxim Integrated, MAX8753ETI-T Datasheet - Page 7

• Manufacturer Part Number: MAX8753ETI-T
• Description: LCD Drivers
• Manufacturer: Maxim Integrated

(Circuit of Figure 1, V
24.2
24.1
24.0
23.9
23.8
9V
0
0
0
0
0
0
A. SHDN, 5V/div
B. V
A. LOAD FET GATE, 5V/div
B. V
MAIN
MAIN
V
MAIN
, 5V/div
vs. OUTP LOAD CURRENT
, 200mV/div
OUTP LOAD CURRENT (mA)
5
V
MAIN
TRANSIENT RESPONSE
OUTP VOLTAGE
1ms/div
40µs/div
SOFT-START
_______________________________________________________________________________________
IN
10
V
SUPP
STARTUP
= 3V, V
OUTN
V
= 9V
SUPP
C. I
I
C. I
I
MAIN
MAIN
15
LX
LX
= 10V
MAIN
, 500mA/div
, 500mA/div
= 160mA
= 20mA TO
160mA
= 9V, T
20
A
B
C
C
A
B
A
= +25°C, unless otherwise noted.)
1.20
1.15
1.10
1.05
1.00
0.95
0.90
9V
0
0
0
TFT LCD DC-DC Converter with
0
0
Typical Operating Characteristics (continued)
2.5
A. SHDN, 5V/div
B. V
A. LOAD FET GATE, 5V/div
B. V
V
MAIN
MAIN
MAIN
V
STARTUP
3.0
MAIN
V
, 5V/div
, 200mV/div
SWITCHING FREQUENCY
3-PULSE TRANSIENT RESPONSE
MAIN
vs. INPUT VOLTAGE
SOFT-START (NO LOAD)
INPUT VOLTAGE (V)
3.5
STARTUP
Integrated Charge Pumps
OUTN
1ms/div
10µs/div
4.0
4.5
C. I
C. I
I
I
MAIN
MAIN
LX
LX
, 500mA/div
, 500mA/div
= 20mA TO 1A,
= 100mA
5.0
2µs PULSE
5.5
A
B
C
A
B
C
1.252
1.251
1.250
1.249
1.248
9V
0
0
0
0
0
A. V
B. I
A. OUTP, 10V/div
B. I
SUPP
LX
V
LX
, 500mA/div
MAIN
, 5V/div
, 500mA/div
vs. REFERENCE CURRENT
10
REFERENCE VOLTAGE
REFERENCE CURRENT (µA)
SWITCHING WAVEFORMS
OUTP SOFT-START
20
400µs/div
400ns/div
30
I
C. V
I
OUTP
MAIN
MAIN
40
= 160mA
= 20mA
, 50mV/div
50
A
B
C
A
B
7