參數(shù)資料
型號(hào): M56787FP
廠(chǎng)商: Mitsubishi Electric Corporation
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: SPINDLE MOTOR DRIVER
中文描述: 主軸馬達(dá)驅(qū)動(dòng)
文件頁(yè)數(shù): 6/8頁(yè)
文件大小: 150K
代理商: M56787FP
SPINDLE MOTOR DRIVER
M56787FP
MITSUBISHI <CONTROL / DRIVER IC>
Figure 7.
Figure 5.
Figure 6.
BRAKING MODE SELECT FUNCTION
It is possible to select three kinds of mode [the reverse braking,the short
braking and the free run] in reverse torque by logic control using the
BRS terminal.
Figure 7 shows the function table of the braking mode select.
It is the reverse braking when BRS is LOW,the short braking when BRS
is HIGH and the free run when BRS is OPEN.
SLEEP MODE FUNCTION
FG FUNCTION
OPEN
LOW
Braking mode select [BRS] pin
HIGH
SHORT BRAKE
FREE RUN
REVERSE BRAKE
Figure 5 shows the sleep mode function. If the [S/S] pin is set to be open or low,
the motor drive outputs have high impedance and the motor stops. Then, the IC
bias current wil be a slight current (please refer to the electrical characteristics),
and the hall bias output will be cut off. When the [S/S] pin input is high, all the
circuits will work.
START / STOP (S/S pin)
LOW or OPEN
HIGH
Motor Stop
Bias off
Hall-Bias off
Motor on
Bias on
Hall-Bias on
It is possible for user to switch the output pulse numeric by external
logic control using FG pulse select terminal [FGS].
Figure 6 shows the FG pulse select function.
The FG pin outputs the square pulse signal synchronizing with the hall
inputs [Hv+ and Hv-] timming when FGS=LOW or OPEN. When
FGS=HIGH, it outputs the square pulse signal of 3 times.
The FG pin is pulled-up to V
CC
1 by an internal resistor [typ. 10Kohm].
FG pulse select (FGS pin)
LOW or OPEN
HIGH
NX1 pulse
NX3 pulse
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