MAX8751ETJ-T Maxim Integrated Products, MAX8751ETJ-T Datasheet - Page 7

• Manufacturer Part Number: MAX8751ETJ-T
• Description: Display Drivers Fixed-Frequency Full -Bridge CCFL Inverte
• Manufacturer: Maxim Integrated Products

(Circuit of Figure 1. V
50% BRIGHTNESS STARTUP WAVEFORM
A: VFB, 1V/div
B: LX1, 10V/div
C: LX2, 10V/div
D: IFB, 2V/div
A: COMP, 500mV/div
B: IFB, 2V/div
C: VFB, 1V/div
NORMAL OPERATION
20µs/div
2ms/div
_______________________________________________________________________________________
IN
= 12V, T
MAX8751 toc01
MAX8751 toc04
A
= +25°C, unless otherwise noted.)
A
B
C
D
A
B
C
Fixed-Frequency, Full-Bridge CCFL
A: COMP, 500mV/div
B: IFB, 2V/div
C: VFB, 1V/div
A: COMP, 500mV/div
B: IFB, 2V/div
C: VFB, 1V/div
50% BRIGHTNESS DWPM WAVEFORM
STARTUP WAVEFORM (V
MINIMUM BRIGHTNESS
(V
CNTL
2ms/div
1ms/div
= 1V)
Typical Operating Characteristics
CNTL
MAX8751 toc02
MAX8751 toc05
= 0)
Inverter Controller
B
C
A
A
C
B
A: COMP, 500mV/div
B: IFB, 2V/div
C: VFB, 1V/div
A: COMP, 1V/div
B: IFB, 1V/div
C: VFB, 1V/div
DPWM OPERATION (V
MINIMUM BRIGHTNESS
DPWM SOFT-START
100µs/div
1ms/s
CNTL
= 0)
MAX8751 toc03
MAX8751 toc06
B
C
C
A
A
B
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