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參數(shù)資料
| 型號： | MAX754 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | CCFL Backlight and LCD Contrast Controllers(CCFT背光和液晶顯示器對比度控制器（電源）) |
| 中文描述： | CCFL背光燈及LCD對比度控制負壓控制器 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 137K |
| 代理商： | MAX754 |
M
CCFL Bac klight and
LCD Contrast Controllers
_______________________________________________________________________________________
3
Note 1:
Maximum shutdown current occurs at BATT = LX = 0V.
Note 2:
Timing specifications are guaranteed by design and not production tested.
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 5V, BATT = 15V, CON = LON = 5V, LX = GND = PGND = 0V, I
REF
= 0mA, all digital input levels are 0V or 5V,
T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
At zero scale (code = 0)
At full scale (DAC code = 63)
At full scale (DAC code = 31)
At full scale (DAC code = 63)
At preset DAC, LON = 0V, LADJ = 5V
(code = 31)
Guaranteed monotonic
BATT = 4V, LX = 0V
BATT = 16V
Sink current, CFB = 5V, CC = 2.5V
Source current, CFB = 0V, CC = 2.5V
At zero scale (code = 0)
BATT = 4V
CONDITIONS
μA
12
20
LX Input Current
μA
12
20
BATT Input Current
nA
±150
LFB Input Leakage Current
595
1210
625
1250
655
1290
893
928
963
mV
1200
1240
1280
MAX753 Feedback Voltage (REF-LFB)
Bits
6
DAC Resolution
μs
35
70
Switching Period
0.5
1.5
μs
2
5
Switch On-Time
745
782
820
mV
1210
1250
1290
Feedback Voltage (CFB)
200
μA
50
Feedback-Amplifier Output Current
V/μs
0.4
Feedback-Amplifier Slew Rate
320
343
365
±100
nA
MHz
Feedback-Amplifier Input Bias Current
Feedback-Amplifier Unity-Gain Bandwidth
1
UNITS
MIN
TYP
MAX
PARAMETER
At preset DAC, CON = 0V, CADJ = 5V
(code = 15)
ns
ns
100
100
CADJ , LADJ High Width (t
SH
)
CADJ , LADJ Low Width (t
SL
)
CADJ Low to CON Low or
LADJ Low to LON Low (t
SD
)
ns
0
Reset Hold Time (t
RH
)
ns
0
Reset Setup Time (t
RS
)
ns
110
Reset Pulse Width (t
R
)
LON = CON = CS = LFB = CFB = LADJ =
CADJ = LX = 0V
LON = CON = CS = LFB = CFB = LADJ =
CADJ = 0V, LX = BATT = 15V
ns
50
At zero scale (code = 0)
At preset DAC, LON = 0V, LADJ = 5V
(code = 31)
610
635
660
905
938
971
mV
MAX754 Feedback Voltage (LFB)
LCD CONTROLLER
TIMING
(Note 2)
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