MAX8759 Maxim Integrated Products, MAX8759 Datasheet - Page 6

• Manufacturer Part Number: MAX8759
• Description: CCFL Backlight Controller
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
Low-Cost, SMBus, CCFL Backlight Controller
6
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
PWMI Input Low Voltage
PWMI Input High Voltage
PWMI Input Frequency Range
PWMI Brightness Setting
ALS Full-Adjustment Range
VALS Output Voltage
VALS On-Resistance
Zero-Crossing Delay
Maximum Zero-Crossing Delay
DEL Disable Threshold
TFLT Charge Current
TFLT Trip Threshold
SDA, SCL, Input Low Voltage
SDA, SCL, Input High Voltage
SDA Output Low-Sink Current
SMBus Frequency
SMBus Free Time
SCL Serial Clock High Period
SCL Serial Clock Low Period
START Condition Setup Time
START Condition Hold Time
STOP Condition Setup Time from SCL
SDA Valid to SCL Rising-Edge Setup Time,
Slave Clocking in Data
SCL Falling Edge to SDA Transition
SCL Falling Edge to SDA Valid,
Reading Out Data
_______________________________________________________________________________________
PARAMETER
BATT
= 12V, V
CC
= V
DD,
T
A
= -40°C to +85°C.) (Note 1)
PWMI duty cycle = 100%
PWMI duty cycle = 50%
PWMI duty cycle = 0%
MAX8759 is enabled, 6V < V
I
MAX8759 is enabled
V
V
V
DEL rising
DEL falling
V
V
V
Rising edge
V
t
t
t
t
t
t
t
t
t
LOAD
BUF
HIGH
LOW
SU:STA
HD:STA
SU:STO
SU:DAT
HD:DAT
DV
BATT
BATT
BATT
ISEC
ISEC
ISEC
SDA
= 0.4V
< 1.25V and V
< 1.25V and V
> 1.25V and V
= 1mA
= 9V, R
= 12V, R
= 16V, R
THR
CONDITIONS
THR
THR
= 100kΩ
= 100kΩ
= 100kΩ
IFB
IFB
IFB
< 540mV; V
> 660mV; V
> 660mV; V
BATT
< 28V,
FLT
FLT
FLT
= 2V
= 2V
= 2V
5.10
1.50
MIN
-1.5
115
250
200
2.1
9.7
3.2
3.9
0.8
3.7
2.1
4.7
4.7
4.7
98
48
10
5
0
0
4
4
4
4
0
TYP
MAX
10.3
5.50
2.10
-0.8
155
100
0.7
1.8
0.3
4.4
4.5
1.2
4.3
0.7
50
52
60
UNITS
kHz
kHz
mA
µA
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
%
Ω
V
V
V
V
V
V
V
V