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TOP254PN Datasheet(PDF) 33 Page - Power Integrations, Inc.

Part No. TOP254PN
Description  Enhanced EcoSmart®, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range
Download  48 Pages
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Maker  POWERINT [Power Integrations, Inc.]
Homepage  http://www.powerint.com
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TOP254PN Datasheet(HTML) 33 Page - Power Integrations, Inc.

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Rev. F 01/09
33
TOP252-262
www.powerint.com
Parameter
Symbol
Conditions
SOURCE = 0 V; T
J = -40 to 125 °C
(Unless Otherwise Specified)
Min
Typ
Max
Units
Control Functions (cont.)
External Bias Current
I
B
132 kHz Operation
TOP252-255
1.0
1.6
2.2
mA
TOP256-258
1.3
1.9
2.5
TOP259-262
1.6
2.2
2.9
CONTROL Current at
0% Duty Cycle
I
C(OFF)
66 kHz Operation
TOP252-255
4.4
5.8
mA
TOP256-258
4.7
6.1
TOP259-262
5.1
6.5
132 kHz Operation
TOP252-255
4.6
6.0
TOP256-258
5.1
6.5
TOP259-262
6.0
7.4
Dynamic Impedance
Z
C
I
C = 4 mA; TJ = 25 °C, See Figure 52
10
18
22
Ω
Dynamic Impedance
Temperature Drift
0.18
%/°C
CONTROL Pin Internal
Filter Pole
7
kHz
Upper Peak Current to
Set Current Limit Ratio
k
PS(UPPER)
T
J = 25 °C
See Note B
50
55
60
%
Lower Peak Current to
Set Current Limit Ratio
k
PS(LOWER)
T
J = 25 °C
See Note B
25
%
Multi-Cycle-
Modulation Switching
Frequency
f
MCM(MIN)
T
J = 25 °C
30
kHz
Minimum Multi-Cycle-
Modulation On Period
T
MCM(MIN)
T
J = 25 °C
135
μs
Shutdown/Auto-Restart
Control Pin
Charging Current
I
C(CH)
T
J = 25 °C
V
C = 0 V
-5.0
-3.5
-1.0
mA
V
C = 5 V
-3.0
-1.8
-0.6
Charging Current
Temperature Drift
See Note A
0.5
%/°C
Auto-Restart
Upper Threshold
Voltage
V
C(AR)U
5.8
V
Auto-Restart Lower
Threshold Voltage
V
C(AR)L
4.5
4.8
5.1
V
Multi-Function (M), Voltage Monitor (V) and External Current Limit (X) Inputs
Auto-Restart
Hysteresis Voltage
V
C(AR)hyst
0.8
1.0
V
Auto-Restart Duty
Cycle
DC
(AR)
24
%
Auto-Restart
Frequency
f
(AR)
0.5
Hz
Line Undervoltage
Threshold Current and
Hysteresis (M or V Pin)
I
UV
T
J = 25 °C
Threshold
22
25
27
μA
Hysteresis
14
μA
Line Overvoltage
Threshold Current and
Hysteresis (M or V Pin)
I
OV
T
J = 25 °C
Threshold
107
112
117
μA
Hysteresis
4
μA


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