參數(shù)資料
型號: M56789FP
廠商: Mitsubishi Electric Corporation
英文描述: 4 CHANNEL ACTUATOR DRIVER
中文描述: 4通道執(zhí)行器驅(qū)動
文件頁數(shù): 8/15頁
文件大?。?/td> 632K
代理商: M56789FP
4 CHANNEL ACTUATOR DRIVER
M56789FP
MITSUBISHI <CONTROL / DRIVER IC>
I/O terminal equivalent circuit
(7)CH1,2,3,4 power amplifier
OUTPUT terminal equivalent circuit
(VM1(+), VM1(-), VM2(+), VM2(-),
VM3(+), VM3(-), VM4(+), VM4(-), )
The equivalent circuits of an output stage of the power amplifier
are shown in (7) .
The power supplies of CH1,CH2 are Vm1.
The power supply of CH3 is Vm3, and the power supply of CH4 is
Vm2.
The source side of the power amplifier output stage consists of a
PNP and a NPN. The emitta of the PNP is connected to V
CC
2. So
the power supplies of the PNP can be adjusted externally.
[About bootstrap advantage]
The output stage of the power amplifier consists of the preceding
components. If V
CC
2 is provided with higher voltage input than
Vm* (The recommendation voltage is Vm*+1V) externally, the
output range can be wider than that of V
CC
2=Vm*.
Please take advantage of this bootstrap function for the system
which has many power supplies. And it is the same with the
external bootstrap circuit which provides V
CC
2 with higher voltage
inputs than Vm*.
Also the bootstrap can decrease the saturation voltage at the
source side of the power amplifier output stage. Therefore, when
the outputs of the power amplifiers which drive motors and
actuators are fully swung, the power dissipation of the IC will be
decreased.
VM(+,-)
V
CC
2
GND
Vm
BASICALLY CHARACTERISTICS
Output saturation voltage and Load current characteristic.
This data is an example for typical sample.
BOOTSTRAP
CH1
Vm1=V
CC
1=5v,V
CC
2=12v
VM1-
1.0
2.0
3.0
4.0
5.0
0.2
0.4 0.5
Load Current (mA)
O
0.6
0.8
1.0
0
0.5v
0.3v
VM1+,VM1-
0.35v
VM1+
1.0
2.0
3.0
4.0
5.0
0.2
0.4
Load Current (mA)
0.5
0.6
0.8
1.0
0
CH2
Vm1=V
CC
1=5v,V
CC
2=12v
VM2-
0.5v
0.3v
O
0.3v
VM2+,VM2-
VM2+
1.0
2.0
3.0
4.0
5.0
0.2
Load Current (mA)
0.4 0.5
0.6
0.8
1.0
0
CH3
Vm3=V
CC
1=5v,V
CC
2=12v
0.5v
O
VM3+,VM3-
0.46v
0.22v
0.24v
VM3+,VM3-
1.0
2.0
3.0
4.0
5.0
0.2
0.4
0.5
0.6
0.8
1.0
0
CH4
Vm2=V
CC
1=5v,V
CC
2=12v
O
Load Current (mA)
VM4+,VM4-
0.3v
0.3v
VM4+,VM4-
0.6v
0.6v
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