参数资料
型号: TOP243Y-TL
厂商: POWER INTEGRATIONS INC
元件分类: 稳压器
英文描述: 1.44 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZFM6
封装: PLASTIC, TO-220, 7 PIN
文件页数: 10/52页
文件大小: 2175K
代理商: TOP243Y-TL
TOP242-250
M
12/04
18
Typical Uses of MULTI-FUNCTION (M) Pin (cont.)
Figure 34. Externally Set Current Limit (Not Normally Required-See
M Pin Operation Description).
PI-2517-022604
DC
Input
Voltage
+
-
D
M
S
C
For RIL = 12 k
ILIMIT = 69%
CONTROL
RIL
See Figures 54b, 55b
and 56b for other resistor
values (RIL) to select
different ILIMIT values.
For RIL = 25 k
ILIMIT = 43%
PI-2518-040501
DC
Input
Voltage
+
-
D
M
S
C
CONTROL
RIL
RLS
2.5 M
6 k
100% @ 100 VDC
63% @ 300 VDC
ILIMIT =
Figure 35. Current Limit Reduction with Line Voltage (Not Normally
Required-See M Pin Operation Description).
Figure 36. Active-on (Fail Safe) Remote ON/OFF.
PI-2519-040501
DC
Input
Voltage
+
-
D
S
C
QR
ON/OFF
M
CONTROL
QR can be an optocoupler
output or can be replaced
by a manual switch.
47 k
PI-2522-040501
DC
Input
Voltage
+
-
D
S
C
RMC
45 k
M
CONTROL
QR
QR can be an optocoupler
output or can be replaced
by a manual switch.
ON/OFF
47 k
Figure 37. Active-off Remote ON/OFF. Maximum Duty Cycle
Reduced.
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