FSDL0365 Fairchild Semiconductor, FSDL0365 Datasheet - Page 13

• Manufacturer Part Number: FSDL0365
• Description: Green Mode Fairchild Power Switch (FPSTM)
• Manufacturer: Fairchild Semiconductor

Figure 12. KA5-series FPS
(67KHz, with Frequency Modulation) with DVD Player SET
8. Adjusting Current limit function:
combined 2.8K
non-inverting lead on the PWM comparator. A external
resistance of Y on the current limit pin forms a parallel resis-
tance with the 2.8K
the main current source of 900uA.
Figure 13. FSDX-series FPS
no Frequency Modulation) with DVD Player SET
internal resistance is connected into the
when the internal diodes are biased by
Frequency (MHz)
Frequency (MHz)
TM
Full Range EMI scan(67KHz,
TM
Full Range EMI Scan
As shown in fig
CISPR2QB
CISPR2AB
CISPR2QB
CISPR2AB
14, a
For example, FSDx0265RN has a typical Sense FET
limit (I
1A by inserting a 2.8k
ground which is derived from the following equations:
2.15: 1 = 2.8K
X = 1.3K ,
Since X represents the resistance of the parallel network, Y
can be calculated using the following equation:
Y = X / (1 - (X/2.8K ))
Current
Limit
OVER
Feed
Back
AK
3
4
Figure 14. Peak current adjustment
) of 2.15A. The Sense FET current
: XK
5uA
between the current limit pin and
,
900uA
0
8 .
2
K
K
Rsense
can be limited to
FSDL0165RN
comparator
SenseFET
Sense
PWM
current
13