MAX8785AETI+T Maxim Integrated Products, MAX8785AETI+T Datasheet - Page 3

• Manufacturer Part Number: MAX8785AETI+T
• Description: IC CCFL CTRL 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: CCFL Controllerr

Specifications of MAX8785AETI+T

• Current - Supply: 1.5mA
• Voltage - Supply: 4.5 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Frequency: -
• Lead Free Status / Rohs Status: Details

ELECTRICAL CHARACTERISTICS (continued)
(V
are at T
IFB Lamp-Out Threshold
IFB-to-COMP Transconductance
COMP Output Impedance
COMP Maximum Voltage Threshold
COMP Discharge Current During Overvoltage
Initial Startup COMP Charging Current
PCOMP Impedance
VFB Input Bias Current
VFB Overvoltage Threshold
VFB Short-Circuit Threshold
OLF Input Bias Current
OLF Trip Threshold
Main Oscillator Frequency
DPWM Chopping Frequency
DPWM Dimming Resolution
CNTL Minimum Duty-Cycle Threshold
CNTL Maximum Duty-Cycle Threshold
CNTL Input Current
LSYNC Input Low Voltage
LSYNC Input High Voltage
LSYNC Input Hysteresis
LSYNC Input Bias Current
LSYNC Input Frequency Range
LSYNC Minimum Duty Cycle
SEL Input Low Voltage
SEL Input High Voltage
SEL Input Hysteresis
SEL Input Bias Current
SHDN Input Low Voltage
SHDN Input High Voltage
SHDN Input Hysteresis
BATT
= 12V, V
A
= +25°C.)
DD1
PARAMETER
= V
_______________________________________________________________________________________
DD2
= V
SHDN
= 5.35V, R
RATE
Reject 1µs glitches
1V < V
V
-4V < V
V
V
-4V < V
OLF rising
R
R
R
R
R
R
R
R
R
Guaranteed monotonic
0 < V
0 < V
R
0 < V
IFB
FB
FB
HF
HF
HF
HF
HF
HF
LF
LF
LF
LF
= 190kΩ, T
= 150kΩ
= 103kΩ
= 315kΩ
= 150kΩ
rising
rising
= 100kΩ, V
= 100kΩ, V
= 150kΩ, V
= 150kΩ, V
= 75kΩ, V
= 75kΩ, V
= 800mV, V
CNTL
LSYNC
SEL
COMP
VFB
OLF
Piezoelectric Transformers
< 5.5V
< 2.0V
< +4V
< +4V
< 5.5V
< 3V
A
COMP
COMP
Full-Bridge Controller for
COMP
COMP
COMP
COMP
CONDITIONS
= 0°C to +85°C, unless otherwise noted. See Figure 1. Typical values
VFB
= 2.5V, V
= 0.0V
= 3.0V
= 0.0V
= 3.0V
= 0.0V
= 3.0V
COMP
= 2V
3.15
2.05
58.0
0.20
MIN
720
200
202
-0.1
120
0.5
1.1
1.9
2.1
2.1
2.1
50
10
-2
-2
-1
-1
7
TYP
3.25
2.25
60.0
40.0
33.3
80.0
66.6
0.23
800
100
230
208
300
100
200
200
100
1.0
1.2
2.0
10
50
9
1
8
MAX
+0.1
3.35
2.45
62.0
0.26
880
150
260
214
280
2.0
1.3
2.1
0.8
0.8
0.8
+2
+2
+1
+1
11
UNITS
kHz
MΩ
MΩ
Bits
mV
mA
mV
mV
mV
mV
µA
µA
µA
Hz
µA
µA
Hz
µA
µs
%
V
V
V
V
V
V
V
V
V
V
V
3