MAX8753ETI-T Maxim Integrated, MAX8753ETI-T Datasheet - Page 8

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

24V
24V
TFT LCD DC-DC Converter with
Integrated Charge Pumps
(Circuit of Figure 1, V
8
9V
0
0
0
0
0
0
_______________________________________________________________________________________
A. SHDN, 5V/div
B. V
C. V
A. V
B. V
OUTL
MAIN
CIN
C2N
OUTP SWITCHING WAVEFORMS
, 5V/div
, 5V/div
, 5V/div
, 10V/div
POWER-UP SEQUENCING
4ms/div
4µs/div
IN
0
0
0
= 3V, V
A. SHDN, 5V/div
B. OUTL, 1V/div
D. V
E. V
F. V
C. V
I
OUTP
OUTP
DLP
OUTN
OUTP
= 20mA
MAIN
, 2V/div
, 10V/div
, 10V/div
, 200mV/div
OUTL SOFT-START
= 9V, T
400µs/div
A
B
C
A
B
C
D
E
F
A
-11V
24V
= +25°C, unless otherwise noted.)
9V
0
0
0
0
0
0
C. V
R
OUTL
Typical Operating Characteristics (continued)
REF
A. SHDN, 5V/div
B. V
C. V
A. SHDN, 5V/div
B. OUTN, 5V/div
= 10Ω
, 1V/div
OUTL
MAIN
POWER-DOWN SEQUENCING
, 5V/div
, 10V/div
OUTN SOFT-START
A
B
C
1ms/div
4ms/div
D. V
E. V
F. V
C. I
I
OUTN
2.5V
SUPN
OUTP
REF
OUTN
= 20mA
0
, 1V/div
, 200mA/div
, 10V/div
, 10V/div
A. V
B. I
OUTL
OUTL
OUTL TRANSIENT RESPONSE
, 100mA/div
, 50V/div
A
B
C
A
B
C
D
E
F
-11V
-11V
2.5V
24V
9V
100µs/div
0
0
A. V
B. V
C. V
A. V
B. V
MAIN
OUTP
OUTN
C3P
OUTN
OUTN SWITCHING WAVEFORMS
, 5V/div
I
OUTL
, 5V/div
, 20V/div
, 10V/div
, 100mV/div
= 10mA TO 300mA
FAULT TIMER
10ms/div
10µs/div
A
B
D. V
E. V
R
I
OUTN
MAIN
OUTL
LX
, 10V/div
= 10mA
= OPEN TO 18Ω
, 2V/div
A
B
A
B
C
D
E