MAX754CSE View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX754CSE Datasheet PDF : 16 Pages
| |||
CCFL Backlight and
LCD Contrast Controllers
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 5V, BATT = 15V, CON = LON = 5V, LX = GND = PGND = 0V, IREF = 0mA, all digital input levels are 0V or 5V,
TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
CONDITIONS
At full scale (DAC code = 31)
MIN
1210
TYP
1250
MAX
1290
UNITS
Feedback Voltage (CFB)
At preset DAC, CON = 0V, CADJ = 5V
(code = 15)
745
782
820
mV
Feedback-Amplifier Input Bias Current
Feedback-Amplifier Unity-Gain Bandwidth
Feedback-Amplifier Slew Rate
Feedback-Amplifier Output Current
LCD CONTROLLER
Switch On-Time
Switching Period
DAC Resolution
MAX753 Feedback Voltage (REF-LFB)
MAX754 Feedback Voltage (LFB)
LFB Input Leakage Current
BATT Input Current
LX Input Current
TIMING (Note 2)
Reset Pulse Width (tR)
Reset Setup Time (tRS)
Reset Hold Time (tRH)
CADJ, LADJ High Width (tSH)
CADJ, LADJ Low Width (tSL)
CADJ Low to CON Low or
LADJ Low to LON Low (tSD)
At zero scale (code = 0)
Source current, CFB = 0V, CC = 2.5V
Sink current, CFB = 5V, CC = 2.5V
320
343
365
±100
nA
1
MHz
0.4
V/µs
50
µA
200
BATT = 4V
BATT = 16V
2
5
µs
0.5
1.5
BATT = 4V, LX = 0V
35
70
µs
Guaranteed monotonic
6
Bits
At full scale (DAC code = 63)
1200 1240 1280
At preset DAC, LON = 0V, LADJ = 5V
(code = 31)
893
928
963
mV
At zero scale (code = 0)
595
625
655
At full scale (DAC code = 63)
1210 1250 1290
At preset DAC, LON = 0V, LADJ = 5V
(code = 31)
905
938
971
mV
At zero scale (code = 0)
610
635
660
±150
nA
LON = CON = CS = LFB = CFB = LADJ =
CADJ = LX = 0V
12
20
µA
LON = CON = CS = LFB = CFB = LADJ =
CADJ = 0V, LX = BATT = 15V
12
20
µA
110
ns
0
ns
0
ns
100
ns
100
ns
50
ns
Note 1: Maximum shutdown current occurs at BATT = LX = 0V.
Note 2: Timing specifications are guaranteed by design and not production tested.
_______________________________________________________________________________________ 3
Share Link: 