FAN7319 Datasheet, PDF (8/23 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 TA=
-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
Open Lamp in Striking
VOLP
Volp1
Open-Lamp Protection Voltage 1
Normal, Vena = 2V
0.4
0.5
0.6
Vcmpr
CMP-High Protection Voltage
2.85 3.00 3.15
Vslp
Vtmr1
Vtmr2
Itmr1
Itmr2
Short-Lamp Protection Voltage
Timer Threshold Voltage 1
Timer Threshold Voltage 2
Timer Current 1
Timer Current 2
Normal, Vena = 2V
0.4
0.5
0.6
Striking: Repeat 4 Times 2.9
3.0
3.1
Normal
0.9
1.0
1.1
Open Lamp
1.6
2.0
2.4
Short Lamp
40
50
60
TSD Thermal Shutdown
150
Vovp
VDCR
Over-Voltage Protection Voltage
ENA2.3V OLP Disable/Enable Change
Voltage
VOVPR
2.1
2.3
2.5
Output Section
Vndhv
Vndlv
Vnuv
NMOS Gate High Voltage
NMOS Gate Low Voltage⁽³⁾
NMOS Gate Voltage with UVLO
Activated
VIN = 12V
VIN = 12V
VIN = 4.5V
VIN -0.5 VIN VIN +0.5
-0.3
0
0.3
0
0.3
Indsur
NMOS Gate Drive Source Current
VIN = 12V
200
Indsin
NMOS Gate Drive Sink Current
VIN = 12V
300
Maximum / Minimum Overlap
Minimum Overlap Between Diagonal
Switches
fosc = 100kHz,
See Figure 14
0
Maximum Overlap Between Diagonal fosc = 100kHz
Switches
See Figure 14
86
90
Dead Time
tD_AB
NDR_A/NDR_B
See Figure 34
450 550
650
tD_CD
NDR_C/NDR_D
See Figure 35
450 550
650
Note:
3. 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
mA
mA
%
%
ns
ns
© 2010 Fairchild Semiconductor Corporation
FAN7319 • 1.0.1
8
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