KA3842 データシートの表示（PDF） - Estek Electronics Co. Ltd
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KA3842 Datasheet PDF : 7 Pages
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VREF
8
RT
RSLOPE
IS
RT /CT 4 MIK3842
R1
RS
ISENSE
3
5
GND
VREF 8
RT
RSLOPE
IS
RT /CT 4
MIK3842
R1
ISENSE 3
RS
5
GND
Figure 4. Slope Compensation Techniques
SCR must be selected for a holding current of less than 0.5mA.
The simple two transistor circuit can be used in place of the SCR as shown.
Figure 5. Latched Shutdown
From V0
RI
Rd Cf
2.5 V
VFB
+
-
2 EA
Rf
1
COMP
+
1mA
2R
R
5
Error Amp compensation circuit for stabilizing any current-mode topology except for
boost and flyback converters operating with continuous inductor current.
From V0
Rp
RI
Cp
2.5 V
VFB
+
-
2 EA
Cf
Rf
COMP 1
+
1mA
2R
R
5
Error Amp compensation circuit for stabilizing current-mode boost and flyback
topologies operating with continuous inductor current.
Figure 6. Error Amplifier Compensation
BEIJING ESTEK ELECTRONICS CO.,LTD
4
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