TOP232G Ver la hoja de datos (PDF) - Power Analog Micoelectronics
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TOP232G Datasheet PDF : 36 Pages
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TOP232-234
Typical Uses of MULTI-FUNCTION (M) Pin
+
DC
Input
Voltage
D
M
CONTROL
C
-
S
PI-2508-081199
Figure 13. Three Terminal Operation (MULTI-FUNCTION
Features Disabled. FREQUENCY Pin Tied to SOURCE
or CONTROL Pin).
+
DC
Input
Voltage
VUV = IUV x RLS
VOV = IOV x RLS
RLS
2 MΩ For RLS = 2 MΩ
VUV = 100 VDC
VOV = 450 VDC
DCMAX@100 VDC = 78%
D
M
DCMAX@375 VDC = 47%
CONTROL
C
-
S
PI-2509-040401
Figure 14. Line Sensing for Under-Voltage, Overvoltage and
Maximum Duty Cycle Reduction.
+
DC
Input
Voltage
6.2 V
2 MΩ
VUV = RLS x IUV
For Value Shown
RLS VUV = 100 VDC
22 kΩ
D
M
CONTROL
C
-
S
PI-2510-040401
Figure 15. Line Sensing for Under-Voltage Only (Overvoltage
Disabled).
+
DC
Input
Voltage
2 MΩ
RLS
VOV = IOV x RLS
For Values Shown
VOV = 450 VDC
30 kΩ
IN4148
D
M
CONTROL
C
-
S
PI-2516-040401
Figure 16. Line Sensing for Overvoltage Only (Under-Voltage
Disabled).
+
DC
Input
Voltage
RIL
For RIL = 12 kΩ
ILIMIT = 67%
For RIL = 25 kΩ
ILIMIT = 40%
See graph for other
resistor values (RIL)
D
M
CONTROL
C
-
S
Figure 17. Externally Set Current Limit.
PI-2517-040401
12 B
7/01
+
RLS 2.5 MΩ
ILIMIT = 90% @ 100 VDC
ILIMIT = 55% @ 300 VDC
DC
Input
Voltage
RIL 6 kΩ
D
M
CONTROL
C
-
S
PI-2518-040401
Figure 18. Current Limit Reduction with Line Voltage.
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