MAX1996AETI+ Maxim Integrated Products, MAX1996AETI+ Datasheet - Page 6

• Manufacturer Part Number: MAX1996AETI+
• Description: Display Drivers CCFL Backlight Controller
• Manufacturer: Maxim Integrated Products

Specifications of MAX1996AETI+

• Lead Free Status / Rohs Status: Details

High-Efficiency, Wide Brightness
Range, CCFL Backlight Controller
(V
6
LOW INPUT-VOLTAGE OPERATION
BATT
LAMP-OUT VOLTAGE LIMITING
_______________________________________________________________________________________
= 12V, V
(V
STARTUP
BATT
10µs/div
1ms/div
2ms/div
CTL
= 8V)
LAMP REMOVED
= V
CRF,
MAX1996 toc01
MAX1996 toc04
MAX1996 toc07
V
MINDAC
V
2V/div
IFB
2V/div
LX1
10V/div
LX2
10V/div
12V
0V
V
2V/div
IFB
2V/div
I
500mA/div
V
2kV/div
V
2V/div
IFB
1V/div
BATT
FB
FB
SECONDARY
FB
V
BATT
= 1V, MODE = GND, circuit of Figure 1, Table 4.)
HIGH INPUT-VOLTAGE OPERATION
(f
MODE
LAMP-OUT PROTECTION
LAMP REMOVED
SYNCHRONIZED DPWM
= 100kHz, DPWM = 50%)
(V
BATT
1s
200ms/div
10µs/div
1ms/div
= 20V)
MAX1996 toc02
MAX1996 toc05
MAX1996 toc08
Typical Operating Characteristics
V
2V/div
IFB
2V/div
LX1
10V/div
LX2
10V/div
IFB
1V/div
V
1V/div
LX1
10V/div
LX2
10V/div
V
2kV/div
V
2V/div
IFB
1V/div
SECONDARY
FB
FB
FB
6
5
4
3
2
1
0
0
FEED-FORWARD COMPENSATION
(f
MODE
5
SYNCHRONIZED DPWM
= 32kHz, DPWM = 50%)
V
NORMAL OPERATION
CC
10
V
20µs/div
1ms/div
vs. V
BATT
SHUTDOWN
(V)
BATT
15
20
MAX1996 toc06
MAX1996 toc03
25
IFB
1V/div
V
1V/div
LX1
10V/div
LX2
10V/div
20V
10V
V
2V/div
IFB
2V/div
LX1
10V/div
FB
FB
V
BATT