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參數(shù)資料
| 型號： | PS22A78-E |
| 元件分類： | 運動控制電子 |
| 英文描述： | AC MOTOR CONTROLLER, 70 A, DMA42 |
| 封裝： | MODULE-42 |
| 文件頁數(shù)： | 9/10頁 |
| 文件大?。?/td> | 441K |
| 代理商： | PS22A78-E |
8
MITSUBISHI SEMICONDUCTOR < Dual-In-Line Package Intelligent Power Module>
PS22A78-E
TRANSFER-MOLD TYPE
INSULATED TYPE
Dec. 2010
Fig. 7 AN EXAMPLE OF APPLICATION CIRCUIT
Note
1 :If control GND is connected to power GND by broad pattern, it may cause malfunction by power GND fluctuation. It is recommended to connect control GND
and power GND at only a point at which NU, NV, NW are connected to power GND line.
2 :To prevent surge destruction, the wiring between the smoothing capacitor and the P,N1 terminals should be as short as possible. Generally inserting a
0.1μ~0.22μF snubber capacitor C3 between the P-N1 terminals is recommended.
3 :The time constant R1C4 of RC filter for preventing protection circuit malfunction should be selected in the range of 1.5μs~2μs. SC interrupting time might vary
with the wiring pattern. Tight tolerance, temp-compensated type is recommended for R1,C4. When R1 is too small, it will leads to delay of protection. So R1
should be min. 10 times larger resistance than Rs. (Over 100 times is recommended.)
4 :All capacitors should be mounted as close to the terminals of the DIPIPM as possible. (C1: good temperature, frequency characteristic electrolytic type, and
C2: 0.22μ~2.0μF, good temperature, frequency and DC bias characteristic ceramic type are recommended.)
5 :It is recommended to insert a Zener diode D1 (24V/1W) between each pair of control supply terminals to prevent surge destruction.
6 :To prevent erroneous SC protection, the wiring from VSC terminal to CIN filter should be divided at the point D that is close to the terminal of sense resistor.
And the wiring should be patterned as short as possible.
7 :For sense resistor, the variation within 1%(including temperature characteristics), low inductance type is recommended. And the over 1/8W is recommended,
but it is necessary to evaluate in your real system finally.
8 :To prevent erroneous operation, the wiring of A, B, C should be as short as possible.
9 :Fo output is open drain type. It should be pulled up to the positive side of 5V or 15V power supply with the resistor that limits Fo sink current IFo under 1mA. In
the case pull up to 5V supply, over R2=5.1k is needed. (10k is recommended.)
10 :Error signal output width (tFo) can be set by the capacitor connected to CFO terminal. CFO(typ.) = tFo x (9.1 x 10
-6) (F)
11 :High voltage (VRRM =1200V or more) and fast recovery type (trr=less than 100ns or less) diode D2 should be used in the bootstrap circuit.
12 :If high frequency noise superimposed to the control supply line, IC malfunction might happen and cause erroneous operation. To avoid such problem, voltage
ripple of control supply line should meet dV/dt ≤+/-1V/μs, Vripple≤2Vp-p.
13 :Input drive is High-Active type. There is a 3.3k
Ω(min.) pull-down resistor integrated in the IC input circuit. To prevent malfunction, the wiring of each input
should be patterned as short as possible. And it is strongly recommended to insert RC filter (e.g. R3=100
Ω and C5=1000pF) and confirm the input signal level
to meet the turn-on and turn-off threshold voltage. Thanks to HVIC inside the module, direct coupling to MCU without any opto-coupler or transformer isolation
is possible.
R3
C5
R3
C5
R3
C5
R3
C5
R3
C5
VPC(15)
M
MCU
C2
15V
VD
C4
R1
Sense
resistor
N1
C
5V
A
+
UN(27)
VN(28)
WN(29)
Fo(26)
VN1(21)
VNC(22)
P(40)
U(39)
W(37)
NU(36)
LVIC
V(38)
CIN(24)
NV(35)
NW(34)
IGBT1
IGBT2
IGBT3
IGBT4
IGBT5
IGBT6
Di1
Di2
Di3
Di4
Di5
Di6
C1
VOT(23)
WP(13)
VWFB(16)
VWFS(18)
C1 D1 C2
+
VP1(14)
C2
D2
VP(7)
HVIC
VVFS(12)
C1 D1 C2
+
VP1(9)
C2
D2
UP(1)
HVIC
VUFB(4)
VUFS(6)
C1 D1 C2
+
VP1(3)
C2
D2
CFO(25)
D1
C3
VNO
VSC(19)
+
R2
Rs
D
B
R3
C5
VVFB(10)
HVIC
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