FAN7318A Datasheet, PDF (8/24 Pages) Fairchild Semiconductor – LCD Backlight Inverter Drive IC

Electrical Characteristics (Continued)
For typical values, TA=25°C, VIN=15V, and -25°C ≤ TA ≤ 85°C, unless otherwise specified. Specifications to -25°C ~
85°C are guaranteed by design based on final characterization results.
Symbol
Parameter
Test Conditions Min. Typ. Max.
Protection Section
Volp0
Open-Lamp Protection Voltage 0⁽⁴⁾
Striking
Volp1
Open-Lamp Protection Voltage 1
Sweep OLP
Vcmpr CMP-High Protection Voltage
Sweep CMP
Vslp
Short-Lamp Protection Voltage
Sweep TIMER
Vtmr1
Timer Threshold Voltage 1
Striking, Sweep TIMER
Vtmr2
Timer Threshold Voltage 2
Sweep TIMER
Itmr1
Timer Current 1
OLP=0V
Itmr2
TSD
Timer Current 2
Thermal Shutdown⁽⁴⁾
OLR=1.8V
Vovp
Over-Voltage Protection Voltage
Sweep OLR
dcr
ENA2.3V OLP Disable/Enable Change
Voltage
0.65
0.42
3.40
0.22
2.87
1.00
1.7
40
1.24
2.1
0.70
0.49
3.50
0.30
3.02
1.10
2.1
50
150
1.34
2.3
0.75
0.56
3.60
0.38
3.17
1.20
2.5
60
1.44
2.5
Output Section
Vpdhv
PMOS Gate High Voltage⁽⁴⁾
VIN=15V
VIN
Vpdlv
PMOS Gate Low Voltage
VIN=15V
VIN-9.0 VIN-7.5 VIN-6.5
Vndhv
Vndlv
Vpuv
Vnuv
Ipdsur
Ipdsin
Indsur
Indsin
NMOS Gate High Voltage
NMOS Gate Low Voltage⁽⁴⁾
PMOS Gate Voltage with UVLO
Activated
NMOS Gate Voltage with UVLO
Activated
PMOS Gate Drive Source Current⁽⁴⁾
PMOS Gate Drive Sink Current⁽⁴⁾
NMOS Gate Drive Source Current⁽⁴⁾
NMOS Gate Drive Sink Current⁽⁴⁾
VIN=15V
VIN=15V
VIN=4.5V
VIN=4.5V
VIN=15V
VIN=15V
VIN=15V
VIN=15V
7.5
8.5
10.0
0
VIN-0.3
0.3
-300
400
300
-400
Maximum / Minimum Duty Cycle
DCMIN Minimum Duty Cycle⁽⁴⁾
fosc=100kHz
0
DCMAX Maximum Duty Cycle⁽⁴⁾
fosc=100kHz
45
49
Note:
4. These parameters, although guaranteed, are not 100% tested in production.
Unit
V
V
V
V
V
V
µA
µA
°C
V
V
V
V
V
V
V
V
mA
mA
mA
mA
%
%
© 2009 Fairchild Semiconductor Corporation
FAN7318A • 1.0.0
8
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