FAN7300 Datasheet, PDF (5/12 Pages) Fairchild Semiconductor – LCD Back Light Inverter Drive IC

FAN7300
Electrical Characteristics
Vcc=10V, for typical values Ta=25°C, for min/max values Ta is the operating ambient temperature range with
-25°C ≤ Ta ≤ 85°C and 6V ≤ Vcc ≤ 25V, unless otherwise specified.
Characteristics
Symbol
Test Condition
REFERENCE SECTION
Reference Voltage
Vref
-
Line Regulation
∆Vref 8 ≤ VCC ≤ 20V
3V Regulation Voltage
V3
-
OSCILLATOR SECTION(MAIN)
Oscillation Frequency
fosc Ct = 330pF, Rt = 14k
CT High Voltage
Vcth
-
CT Low Voltage
Vbct1
-
OSCILLATOR SECTION(BURST)
Oscillation Frequency
fosc Ctb = 180nF
BCT High Voltage
Vbcth
-
BCT Low Voltage
Vbct1
-
ERROR AMP SECTION
Feedback Output High Voltage
Veh EA_IN = 0V
Output Sink Current
lsin EA_OUT = 2.2V
Output Source Current
lsur EA_OUT = 2.2V
Feedback High Voltage On Burst Dimming Vfbh R(EA_IN) = 50kΩ
MULTIPLIER SECTION
Multiplier Input Voltage High
Vmih
-
Multiplier Gain
K
-
SOFT START SECTION
Soft Start Current
ISS S_S=2V
Soft Start Clamping Voltage
Vssh
-
PROTECTION SECTION
Open Lamp Protection Voltage
Vpr
-
Short Circuit Protection Voltage
Vsc
-
Open Lamp Regulation
Vor
-
Min. Typ. Max. Unit
1.46 1.5
-
2
2.86 2.96
1.54 V
25 mV
3.06 V
75
95
115 kHz
-
1.75
-
V
-
0.25
-
V
125 170
-
1.75
-
0.25
205 Hz
-
V
-
V
3.2
3.7
4.2
V
-
-
-1 mA
1
-
-
mA
Va+0.1 Va+0.4 Va+0.7 V
1.4
1.6
-
0.85
1.8
V
-
1/V
5
8.3
11.6 uA
3
3.7
4.4
V
2.5
3
2.5
3
2.5
3
3.5
V
3.5
V
3.5
V
5