an8032 Panasonic Corporation of North America, an8032 Datasheet - Page 10
an8032
Manufacturer Part Number
an8032
Description
Active Filter Control Ic
Manufacturer
Panasonic Corporation of North America
Datasheet
1.AN8032.pdf
(21 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AN8032
Manufacturer:
PANASONIC/松下
Quantity:
20 000
AN8032
10
[2] Operation descriptions (continued)
1. Normal control (continued)
Application Notes (continued)
AN8032
3) Description of each function (continued)
V
voltage clamp
current
V
voltage clamp
current
Lower limit
voltage clamp
B
B
(1) V
<Setting the V
lower limit
upper limit
Regulation by clamper in/out-current value
limit voltage clamper is 5 mA and the allow-
able input current of the lower limit voltage
clamper is 5 mA. Either one of these allow-
able values is exceeded, the voltage clamp op-
eration of the V
Therefore, R
are not exceeded.
Consumption current and delay
threshold could be exceeded. When the R
is too small, the consumption current becomes
too large.
erly, the input voltage range and the dispersion
of components should be taken into consider-
ation and it should be confirmed that a stable
operation can be ensured under start/overload
conditions or under a small load condition.
B
The allowable output current of the upper
When the R
In order to determine the R
V
(continued)
Upper limit
voltage clamp
CC
B
B
terminal constant>
should be set so that these values
GND
V
B
B
B
terminal is not guaranteed.
value is too large, the V
V
Figure 5. Explanation of V
B
B
value prop-
B
SDB
I
I
DS
value
D
B
R
T
R
is small and undershoot tends to be generated easily.
B
OFF
B
too large
too small
is extended by the delay amount because of low speed.
B
Clamp upper
limit voltage
operation
I
DS
:
AN8032
Consumption current becomes small, however,
:
V
Speed is high, however, consumption current
B
Clamp upper
limit voltage
V
B
Reset operation
of inductor
Voltage Regulators
I
D
5 mA or less
threshold value
R
B
V
B
Time
Time