FAN4800A Datasheet, PDF (12/24 Pages) Fairchild Semiconductor – PFC/PWM Controller Combination

Electrical Characteristics (Continued)
VDD=15V, TA=25°C, RT=6.8kΩ, CT=1000pF unless noted operating specifications.
Symbol
Parameter
Conditions
Min. Typ.
PWM Output Driver
VGATE-CLAMP Gate Output Clamping Voltage VDD=22V
13
15
VGATE-L
Gate Low Voltage
VDD=15V; IO=100mA
VGATE-H
Gate High Voltage
VDD=13V; IO=100mA
8
tr
Gate Rising Time
tf
Gate Falling Time
VDD=15V; CL=4.7nF
VDD=15V; CL=4.7nF
30
60
30
50
DPWM-MAX Maximum Duty Cycle
49.0 49.5
VPWM-LS PWM Comparator Level Shift
1.3 1.5
Notes:
3. This parameter, although guaranteed by design, is not 100% production tested.
4. Gain=K × 5.3 × (VRMS²)^-1; K=( ISENSE － IOFFSET) × [IAC × (VEA － 0.7V)]^-1; VEA (MAX.)=5.6V.
Max. Units
17
V
1.5
V
V
120 ns
110 ns
50.0 %
1.8
V
© 2008 Fairchild Semiconductor Corporation
FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.1
12
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