an8027 Panasonic Corporation of North America, an8027 Datasheet - Page 24
an8027
Manufacturer Part Number
an8027
Description
Ac-dc Switching Power Supply Control Ic With Standby Mode
Manufacturer
Panasonic Corporation of North America
Datasheet
1.AN8027.pdf
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AN8027, AN8037
24
[1] Operation descriptions (continued)
14. Remote on/off function
Application Notes (continued)
Furthermore, this function turns the power supply off by setting the SD pin voltage extremely close to the ground
voltage (i.e., 0 V) if the capacitor connected to the SD pin for timer latch use is damaged in the short-circuit mode.
Refer to figure 24.
output of the IC in remote operation from chattering. Refer to figure 25.
The SD pin of the AN8027 or AN8037 has a remote on/off function besides the following functions.
On the other hand, a hysteresis width of 50 mV (typical) is provided for threshold SD voltage to prevent the
The remote on/off function turns the power supply output on and off remotely with external signals.
V
SD
AN8027, AN8037
0.15 V
Timer latch function
Overvoltage protection function
V
0.1 V
OUT
0 V
8
SD
Start
The power supply is turned off if the capacitor
is damaged in the short-circuit mode.
Figure 24
Figure 25
Stop
Voltage Regulators
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