an8021ns Panasonic Corporation of North America, an8021ns Datasheet - Page 4

• Manufacturer Part Number: an8021ns
• Description: External Excitation Flyback Ac-dc Switching Power Supply Control Ic
• Manufacturer: Panasonic Corporation of North America

AN8021NS
4
Note) 1. The external circuits and circuit constants are provided as an example of a possible design. No guarantees are made with
AC
1. Direct connection with the power supply pin (shorting to V
2. Direct connection with the ground pin (shorting to ground)
Application Circuit Example
Usage Notes
2. *: Former part number
respect to these items for use in mass produced end products.
In this device, pins other than pin 3 cannot be connected directly to the power supply pin (pin 2).
Connection of any other pins to V
In this device, pin 1 cannot be connected directly to the ground pin (pin 8).
Connection of this pin to ground will result in permanent damage to the device.
0.22 F
220 pF
19 k
1 k
TIM/
OVP
CT
RT
3
6
5
CNCIS101(ON3131
OSC
OVP
CC
OCL
will result in permanent damage to the device.
Start/Stop
etc.
*
)
FB
4.2 V
Reset
PC
CC
V
PWM
REF
)
CLM
Drive
220
1
8
7
V
GND
CLM
68 k
Voltage Regulators
OUT
100 F
2 200 pF
33
130
0.47