TOP209P Power Integrations, TOP209P Datasheet - Page 8

• Manufacturer Part Number: TOP209P
• Description: IC OFFLINE SWIT PWM OCP HV 8DIP
• Manufacturer: Power Integrations
• Series: TOPSwitch®r
• Type: Off Line Switcherr

Specifications of TOP209P

• Output Isolation: Isolated
• Frequency Range: 55 ~ 85kHz
• Voltage - Output: 700V
• Power (watts): 2W
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Output Voltage: 5.8 V
• Input / Supply Voltage (max): 265 VAC
• Input / Supply Voltage (min): 85 VAC
• Duty Cycle (max): 70 %
• Switching Frequency: 70 KHz
• Supply Current: 1.2 mA
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2
Key Application Considerations
Use a Kelvin connection to the SOURCE pin for the CONTROL
pin bypass capacitor as shown in Figure 9.
Minimize peak voltage and ringing on the DRAIN voltage at
turn-off. Use a Zener or TVS Zener diode to clamp the DRAIN
voltage.
Under some conditions, externally provided bias or supply
current driven into the CONTROL pin can hold the TOPSwitch
in one of the 8 auto-restart cycles indefinitely and prevent
starting. Shorting the CONTROL pin to the SOURCE pin will
reset the TOPSwitch. To avoid this problem when doing bench
evaluations, it is recommended that the V
turned on before the DRAIN voltage is applied.
Figure 9. Recommended PC Layout for the TOP209/210.
8
TOP209/210
A
8/97
Bias/Feedback
Bias/Feedback
Return
Input
Capacitor
Bypass
SOURCE
CONTROL
C
power supply be
TOP VIEW
TOP210 PFI
CONTROL pin currents during auto-restart operation are much
lower at low input voltages (< 20 V) which increases the auto-
restart cycle period (see the I
curve).
Short interruptions of AC power may cause TOPSwitch to enter
the 8-count auto-restart cycle before starting again. This is
because the input energy storage capacitors are not completely
discharged and the CONTROL pin capacitance has not
discharged below the internal power-up reset voltage (V
In some cases, minimum loading may be necessary to keep a
lightly loaded or unloaded output voltage within the desired
range due to the minimum ON-time.
For additional applications information regarding the TOPSwitch
family, refer to AN-14 in the 1996-97 Data Book and Design
Guide or on our Web site.
DRAIN
SOURCE
C
vs. Drain Voltage Characteristic
High Voltage
Return
PI-1744-011796
C(RESET)
).