TOP232-234 Power Integrations Inc., TOP232-234 Datasheet - Page 29

• Manufacturer Part Number: TOP232-234
• Description: Family Design Flexible/EcoSmart/ Intergrated OFff-line Switcher
• Manufacturer: Power Integrations Inc.

Figure 34. TOPSwitch-FX General Test Circuit.
Figure 32. CONTROL Pin I-V Characteristic.
120
100
80
60
40
20
0
0
NOTES: 1. This test circuit is not applicable for current limit or output characteristic measurements.
Impedance
Dynamic
40 V
CONTROL Pin Voltage (V)
0-15 V
2
2. For P and G packages, short all SOURCE pins together.
S1
=
Slope
1
4
470 Ω
6
Figure 31. Duty Cycle Measurement.
VOLTAGE
470 Ω
DRAIN
5 W
8
S2
47 µF
0 V
HV
10
90%
5-50 V
0.1 µF
100 kΩ
t 1
10%
S3
0-60 kΩ
t 2
Figure 33. Drain Current Operating Envelope.
1.3
1.2
1.1
1.0
0.9
0.8
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
D =
0
S4
0
t 1
t 2
PI-2039-033001
90%
1
t LEB (Blanking Time)
C
CONTROL
I INIT(MIN) @ 265 VAC
I INIT(MIN) @ 85 VAC
2
I LIMIT(MAX) @ 25 °C
I LIMIT(MIN) @ 25 °C
M
F
3
Time (us)
C
4
D
S
TOPSwitch-FX
5
TOP232-234
6
7
PI-2538-040401
8
7/01
B
29