參數(shù)資料
型號(hào): MAX1610
廠商: Maxim Integrated Products, Inc.
英文描述: Digitally Controlled CCFL Backlight Power Supplies
中文描述: 數(shù)控CCFL背光燈電源
文件頁(yè)數(shù): 11/20頁(yè)
文件大小: 137K
代理商: MAX1610
M
Digitally Controlled CCFL Bac klight
Power S upplies
______________________________________________________________________________________
11
6V
-1A
5μs/div
0V
1A
T1
CENTER-TAP
VOLTAGE
C1
CURRENT
BATT = 10V, I
BATT
= 0.20A,
MINDAC = 0.5V, D/A VALUE = 11111
FIGURE 4 CIRCUIT, C2 = 15pF, I
R1
= 462mA,
CCFL VL = 500V
RMS
3V
0V
10ms/div
0V
6V
SS
VOLTAGE
T1
CENTER-TAP
VOLTAGE
FIGURE 4 CIRCUIT, C2 = 15pF,
R1 = 545
,
CCFL VL = 500V
RMS
, BATT = 15V,
MINDAC = 0.5V, D/A VALUE = 10000
Figure 5. Royer Oscillator Typical Operating Waveforms for
Circuit of Figure 4
Figure 6. Start-Up Waveforms for Circuit of Figure 4
MID-SCALE
REF / 8 = 250mV
FULL-SCALE
MIN-SCALE = MINDAC / 8
OmV
DAC CODE
C
NOTE: DAC CODE 00000 FORCES THE BATT-TO-LX SWITCH OFF REGARDLESS OF CSAV OR MINDAC VOLTAGE.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Figure 7. CSAV Regulation Voltage Range
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