5V line 15V line
P (27)
(19) VB(W)
(18) VCC(H)
VB
VCC
COM
IN
OUT
VS
RS
RS
RS
CBS
CBSC
CBSC
CBSC
(17) IN(WH)
(20) VS(W)
W
(26)
Gating WH
Gating VH
Gating UH
CPS
(15) VB(V)
VB
(14) VCC(H)
VCC
COM
IN
OUT
VS
(13) IN(VH)
(16) VS(V)
CBS
V (25)
M
CPS
(11) VB(U)
VB
C
P
U
(10) VCC(H)
VCC
CDCS
Vdc
OUT
VS
COM
IN
CBS
(9) IN(UH)
(12) VS(U)
U
(24)
CPS
RF
RPF
(8) CSC
(7) CFOD
(6) VFO
CSC
OUT(WL)
OUT(VL)
C(SC)
C(FOD)
VFO
RSW
NW (23)
NV (22)
NU (21)
RS
RS
CFOD
Fault
(5) IN(WL)
(4) IN(VL)
(3) IN(UL)
Gating WL
Gating VL
Gating UL
IN(WL)
IN(VL)
IN(UL)
RS
RS
RSV
(2) COM
(1) VCC(L)
COM
VCC
CPF
CBPF
CPS
CPS CPS
OUT(UL)
VSL
RSU
CSPC15
CSP15
RFW
RFV
RFU
Input Signal for
Short-Circuit Protection
W-Phase Current
V-Phase Current
U-Phase Current
CFW
CFU
CFV
Note:
1) To avoid malfunction, the wiring of each input should be as short as possible. (less than 2-3cm)
2) By virtue of integrating an application specific type HVIC inside the SPM, direct coupling to CPU terminals without any opto-coupler or transformer isolation is possible.
3) V output is open collector type. This signal line should be pulled up to the positive side of the 5V power supply with approximately 4.7kΩ resistance. Please refer to Figure11.
FO
4) C
of around 7 times larger than bootstrap capacitor C is recommended.
BS
SP15
5) V output pulse width should be determined by connecting an external capacitor(C
FO
) between C
(pin7) and COM(pin2). (Example : if C
= 33 nF, then t = 1.8ms
FOD
FOD
FOD FO
(typ.)) Please refer to the note 5 for calculation method.
6) Input signal is High-Active type. There is a 5kΩ resistor inside the IC to pull down each input signal line to GND. RC coupling circuits should be adopted for the prevention of
input signal oscillation. R C time constant should be selected in the range 50~150ns. C should not be less than 1nF.(Recommended R =100Ω , C =1nF)
S
PS
PS
S
PS
7) To prevent errors of the protection function, the wiring around R and C should be as short as possible.
F
SC
8) In the short-circuit protection circuit, please select the R C time constant in the range 1.5~2μs.
F
SC
9) Each capacitor should be mounted as close to the pins of the SPM as possible.
10) To prevent surge destruction, the wiring between the smoothing capacitor and the P&GND pins should be as short as possible. The use of a high frequency non-inductive
capacitor of around 0.1~0.22μF between the P&GND pins is recommended.
11) Relays are used at almost every systems of electrical equipments of home appliances. In these cases, there should be sufficient distance between the CPU and the relays.
12) C
should be over 1μF and mounted as close to the pins of the SPM as possible.
SPC15
Figure 13. Typical Application Circuit
13
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FSBB30CH60C Rev. D
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
