TOP242-250 Datasheet, PDF (35/52 Pages) Power Integrations, Inc. – TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher

TOP242-250
Parameter
Conditions
Symbol
SOURCE = 0 V; T_J = -40 to 125 °C
See Figure 53
Min
Typ
Max Units
(Unless Otherwise Specified)
SHUTDOWN/AUTO-RESTART (cont.)
Auto-Restart Duty
Cycle
DC_(AR)
4
8
%
Auto-Restart
Frequency
f_(AR)
1.0
Hz
MULTI-FUNCTION (M), LINE-SENSE (L) AND EXTERNAL CURRENT LIMIT (X) INPUTS
Line Under-
Voltage Threshold
Current and Hys-
I_UV
teresis (M or L Pin)
T_J = 25 °C
Threshold
Hysteresis
44
50
54
µA
30
µA
Line Overvoltage
or Remote ON/OFF
Threshold Current
I_OV
and Hysteresis
(M or L Pin)
T_J = 25 °C
Threshold
Hysteresis
210
225
240
µA
8
µA
L Pin Voltage
Threshold
V_L(TH)
0.5
1.0
1.6
V
Remote ON/OFF
Negative
Threshold Current
and Hysteresis
(M or X Pin)
I_{REM (N)}
T_J = 25 °C
Threshold
Hysteresis
-35
-27
-20
µA
5
µA
L or M Pin Short
Circuit Current
I_L(SC) or
I_M(SC)
V_L, V_M = V_C
300
400
520
µA
X or M Pin Short
Circuit Current
I_X(SC) or
I_M(SC)
V_X, V_M = 0 V
Normal Mode
Auto-Restart Mode
-300
-110
-240
-90
-180
-70
µA
L or M Pin Voltage
(Positive Current)
X Pin Voltage
(Negative Current)
M Pin Voltage
(Negative Current)
V_L, V_M
V_X
V_M
I_L or I_M = 50 µA
1.90
2.50
3.00
V
I_L or I_M = 225 µA
2.30
2.90
3.30
I_X = -50 µA
1.26
1.33
1.40
V
I_X = -150 µA
1.18
1.24
1.30
I_M = -50 µA
1.24
1.31
1.39
V
I_M = -150 µA
1.13
1.19
1.25
Maximum Duty
Cycle Reduction
Onset Threshold
Current
I_L(DC) or
I_M(DC)
T_J = 25 °C
40
60
75
µA
35 ^M
12/04