MAX8729 Maxim Integrated Products, MAX8729 Datasheet - Page 3

• Manufacturer Part Number: MAX8729
• Description: Constant-Frequency / Half-Bridge CCFL Inverter Controller
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS (continued)
(V
IFB Input Bias Current
IFB Lamp-Out Threshold
IFB-to-COMP Transconductance
COMP Output Impedance
COMP Discharge Current During
Overvoltage or Overcurrent Fault
COMP Discharge Current During
DPWM Off-Time
ISEC Input Voltage Range
ISEC Input Bias Current
ISEC Overcurrent Threshold
VFB Input-Voltage Range
VFB Input Bias Current
VFB Overvoltage Threshold
Main Oscillator Frequency
Main Oscillator Frequency Range
HF, HFCK, LF, LFCK Input-Low
Voltage
HF, HFCK, LF, LFCK Input-High
Voltage
HF, HFCK, LF, LFCK Input
Hysteresis
HF, HFCK, LF, LFCK Input Bias
Current
HF, HFCK, LF, LFCK Input Rise
and Fall Time
HF Input Frequency Range
HFCK Input Frequency Range
HSYNC Input Frequency Range
LF Input Frequency Range
LFCK Input Frequency Range
LSYNC Input Frequency Range
DPWM Chopping Frequency
DPWM Frequency Range
IN
= 12V, V
PARAMETER
DD
= 5.3V, T
_______________________________________________________________________________________
A
Constant-Frequency, Half-Bridge CCFL
= 0°C to +85°C, unless otherwise noted. Typical values are at T
0 < V
-2V < V
Reject 1µs glitches
0.5V < V
V
CNTL = GND, V
-4V < V
R
Slave mode, V
Slave mode, V
Slave mode, V
Slave mode, V
Slave mode, V
Slave mode, V
Slave mode, V
R
Slave mode, V
Slave mode, V
R
R
R
IFB
HF
HF
LF
LF
LF
= 150kΩ
= 150kΩ
= 300kΩ
= 100kΩ
= 100kΩ
= 800mV, V
IFB
IFB
VFB
COMP
< 2V
< 0
< 4V
CNTL
CNTL
CNTL
CNTL
CNTL
CNTL
CNTL
CNTL
CNTL
< 2.4V
COMP
ISEC
= V
= V
= V
= V
= V
= V
= V
= V
= V
= 2.5V
CONDITIONS
= 1.5V
CC
CC
CC
CC
CC
CC
CC
CC
CC
Inverter Controller
A
= +25°C.)
10.24
-150
MIN
1.18
2.15
51.7
-0.3
120
190
120
199
760
-25
2.1
20
20
80
80
-3
-3
-4
-1
1200
TYP
1.21
2.25
53.8
200
207
790
100
100
10
38.40
MAX
+0.3
1.26
2.35
55.9
+25
820
100
200
100
600
460
300
280
215
300
0.8
+3
+3
+4
+1
UNITS
kHz
kHz
kHz
kHz
kHz
kHz
MΩ
mV
mV
µA
Hz
Hz
Hz
Hz
µA
µS
µA
µA
µA
µA
ns
V
V
V
V
V
V
3