FNA41060 Datasheet, PDF (13/15 Pages) Fairchild Semiconductor – Smart Power Module

RS
Gating UH
RS
Gating VH
M ^{Gating WH}
C
U
RS
CPS CPS CPS
15V line
CSP15
5V line
Fault
CBPF
Gating UL
Gating VL
Gating WL
RPF
RS
CPF
CSPC05 C_SP05
RS
RS
RS
CPS CPS CPS
CBS
(26) VB(U)
CBSC
(25) VS(U)
(20) IN(UH)
CBS
(24) VB(V)
CBSC
(23) VS(V)
(19) IN(VH)
CBS
(22) VB(W)
CBSC
(21) VS(W)
(18) IN(WH)
(17) VCC(H)
CSPC15 _{(15) COM}
(16) VCC(L)
HVIC
VB(U)
VS(U)
IN(UH)
OUT(UH)
VS(U)
VB(V)
VS(V)
IN(VH)
VB(W)
OUT(VH)
VS(V)
VS(W)
IN(WH)
VCC
COM
OUT(WH)
VS(W)
LVIC
VCC
OUT(UL)
CSC
RF
RTH
(11) VFO
VFO
(14) IN(UL)
(13) IN(VL)
(12) IN(WL)
IN(UL)
IN(VL)
IN(WL)
(10) CSC
(1) VTH
COM
CSC
THERMISTOR
(2) RTH
OUT(VL)
OUT(WL)
P (3)
U (4)
V (5)
W (6)
M
CDCS
VDC
NU (7)
RSU
NV (8)
RSV
NW (9)
RSW
Input Signal for
Short-Circuit Protection
Temp. Monitoring
U-Phase Current
V-Phase Current
W-Phase Current
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_FO output is open drain type. This signal line should be pulled up to the positive side of the MCU or control power supply with a resistor that makes I_FO up to 1mA. Please refer
to Figure14.
4) C_SP15 of around 7 times larger than bootstrap capacitor C_BS is recommended.
5) Input signal is High-Active type. There is a 5kW resistor inside the IC to pull down each input signal line to GND. RC coupling circuits is recommanded for the prevention
of input signal oscillation. R_SC_PS time constant should be selected in the range 50~150ns. (Recommended R_S=100 Ω , C_PS=1nF)
6) To prevent errors of the protection function, the wiring around R_F and C_SC should be as short as possible.
7) In the short-circuit protection circuit, please select the R_FC_SC time constant in the range 1.5~2ms.
8) Each capacitor should be mounted as close to the pins of the SPM as possible.
9) 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 0.1~0.22mF between the P&GND pins is recommended.
10) 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.
11) The zener diode should be adopted for the protection of ICs from the surge destruction between each pair of control supply terminals. (Recommanded zener diode=24V/1W)
12) Please choose the electrolytic capacitor with good temperature characteristic in C_BS. Also, choose 0.1~0.2mF R-category ceramic capacitors with good temperature and
frequency characteristics in C_BSC.
13) For the detailed information, please refer to the AN-9070 and FEB305-001.
Figure 15. Typical Application Circuit
FNA41060 Rev. C
13
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