TOP252-262
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
Parameter
Symbol
Min
Typ
Max
Units
(Unless Otherwise Specified)
Output (cont.)
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
1.45
2.25
1.20
1.80
1.05
1.55
0.90
1.35
1.70
2.60
1.40
2.10
1.20
1.80
1.05
1.55
TOP259
ID = 600 mA
TOP260
ID = 700 mA
ON-State
Resistance
RDS(ON)
Ω
TOP261
ID = 800 mA
TOP262
ID = 900 mA
TJ ≤ 85 °C, See Note E
18
36
DRAIN Supply Voltage
V
OFF-State Drain
Leakage Current
VV, VM = Floating, IC = 4 mA,
DS = 560 V, TJ = 125 °C
IDSS
470
μA
V
VV, VM = Floating, IC = 4 mA,
TJ = 25 °C
Breakdown
Voltage
BVDSS
700
V
See Note F
Rise Time
Fall Time
tR
tF
100
50
ns
ns
Measured in a Typical Flyback
Converter Application
Supply Voltage Characteristics
TOP252-255
0.6
0.9
1.1
0.8
1.1
1.5
1.2
1.4
1.6
1.3
1.6
2.2
2.0
2.3
2.5
2.2
2.5
2.9
66 kHz
Operation
Output
MOSFET
Enabled
VX, VV, VM =
0 V
TOP256-258
TOP259-262
TOP252-255
TOP256-258
TOP259-262
ICD1
Control Supply/
Discharge Current
mA
132 kHz
Operation
Output MOSFET Disabled
VX, VV, VM = 0 V
ICD2
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 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 andfOSC, i.e. ILIMIT(TYP)2 × 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
.
37
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Rev. F 01/09
POWERINT [ Power Integrations ]
