TOP257PN View Datasheet(PDF) - Power Integrations, Inc
Part Name
Description
Manufacturer
TOP257PN Datasheet PDF : 50 Pages
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TOP252-262
Parameter
Conditions
Symbol
SOURCE = 0 V; TJ = -40 to 125 °C
Min
Typ
Max Units
(Unless Otherwise Specified)
Output (cont.)
ON-State
Resistance
RDS(ON)
DRAIN Supply Voltage
OFF-State Drain
Leakage Current
Breakdown
Voltage
IDSS
BVDSS
TOP259
ID = 600 mA
TJ = 25 °C
TJ = 100 °C
TOP260
ID = 700 mA
TJ = 25 °C
TJ = 100 °C
TOP261
ID = 800 mA
TJ = 25 °C
TJ = 100 °C
TOP262
ID = 900 mA
TJ = 25 °C
TJ = 100 °C
TJ ≤ 85 °C, See Note E
VV, VM = Floating, IC = 4 mA,
VDS = 560 V, TJ = 125 °C
VV, VM = Floating, IC = 4 mA,
TJ = 25 °C
See Note F
1.45
1.70
2.25
2.60
1.20
1.40
1.80
2.10
W
1.05
1.20
1.55
1.80
0.90
1.05
1.35
1.55
18
V
36
470
mA
700
V
Rise Time
tR
Fall Time
tF
Supply Voltage Characteristics
Measured in a Typical Flyback
Converter Application
100
ns
50
ns
Control Supply/
Discharge Current
TOP252-255
0.6
1.2
2.0
Output
66 kHz
MOSFET Operation
TOP256-258
TOP259-262
0.9
1.1
1.4
1.6
2.3
2.5
ICD1
Enabled
VX, VV, VM = 132 kHz
0V
Operation
TOP252-255
TOP256-258
0.8
1.1
1.3
1.6
2.2
2.5
mA
TOP259-262
1.5
2.2
2.9
ICD2
Output MOSFET Disabled
VX, VV, VM = 0 V
0.3
0.6
1.3
NOTES:
A. For specifications with negative values, a negative temperature coefficient corresponds to an increase in magnitude with increas-
ing 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 Figures 55a and 55b (Current Limit vs. External Current Limit Resis-
tance) in the Typical Performance Characteristics section. The tolerance specified is only valid at full current limit.
D.
I2f
calculation
is
based
on
typical
values
of
ILIMIT
and
fOSC,
i.e.
I2
LIMIT(TYP)
×
fOSC,
where
fOSC
=
66
kHz
or
132
kHz
depending
on
package
/ F pin connection. See fOSC specification for detail.
E. The TOPSwitch-HX will start up at 18 VDC drain voltage. The capacitance of electrolytic capacitors drops significantly at tempera-
tures below 0 °C. For reliable start up at 18 V in sub zero temperatures, designers must ensure that circuit capacitors meet
recommended capacitance values.
F. Breakdown voltage may be checked against minimum BVDSS specification by ramping the DRAIN pin voltage up to but not
exceeding minimum BVDSS.
www.powerint.com
37
Rev. H 06/13
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