TOP243 View Datasheet(PDF) - Power Integrations, Inc
Part Name
Description
MFG CO.
'TOP243' PDF : 52 Pages View PDF
TOP242-250
Parameter
OUTPUT
Symbol
Conditions
(Unless Otherwise Specified)
See Figure 53
SOURCE = 0 V; TJ = -40 to 125 °C
Min Typ Max
Units
Rise Time
tR
Measured in a Typical
100
ns
Fall Time
tF
Flyback Converter Application
50
ns
SUPPLY VOLTAGE CHARACTERISTICS
DRAIN Supply
Voltage
Shunt Regulator
Voltage
VC(SHUNT)
See Note E
IC = 4 mA
Shunt Regulator
Temperature Drift
TOP242-245
Output
l
CD1
MOSFET Enabled TOP246-249
Control Supply/
VX, VL, VM = 0 V
TOP250
Discharge Current
Output
lCD2
MOSFET Disabled
VX, VL, VM = 0 V
36
V
5.60 5.85 6.10
V
±50
ppm/°C
1.0
1.6
2.5
1.2
2.2
3.2
1.3
2.4 3.65
mA
0.3
0.6
1.3
NOTES:
A. For specifications with negative values, a negative temperature coefficient corresponds to an increase in
magnitude with increasing temperature, and a positive temperature coefficient corresponds to a decrease in
magnitude with increasing temperature.
B. Guaranteed by characterization. Not tested in production.
C. For externally adjusted current limit values, please refer to Figure 55 (Current Limit vs. External Current Limit
Resistance) in the Typical Performance Characteristics section.
D. Breakdown voltage may be checked against minimum BV specification by ramping the DRAIN pin voltage up to
DSS
but not exceeding minimum BVDSS.
E. It is possible to start up and operate TOPSwitch-GX at DRAIN voltages well below 36 V. However, the
CONTROL pin charging current is reduced, which affects start-up time, auto-restart frequency, and auto-restart
duty cycle. Refer to Figure 67, the characteristic graph on CONTROL pin charge current (IC) vs. DRAIN voltage
for low voltage operation characteristics.
39 H
9/02
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