參數(shù)資料
型號(hào): UTCA9849
廠商: 友順科技股份有限公司
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 3-phase motor driver for CD-ROMs
中文描述: 3相電機(jī)驅(qū)動(dòng)器的CD光盤
文件頁(yè)數(shù): 8/11頁(yè)
文件大小: 158K
代理商: UTCA9849
UTC A9849
(2) Torque command
The R
NF
pin voltage with respect to the torque command (E
C
) is as follows:
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R109-006,A
Fig.10
2.5
V
M
-R
NF
(V)
3mV
E
C
(V)
Forward
Offset voltage " - "
Offset voltage " + "
The I / O gain (G
EC
) from the E
C
pin to the RNF pin (output current) is determined by the R
NF
detector resistor.
G
EC
= 0.255 / R
NF
[A / V]
The torque limit current ITL is given by:
I
TL
= 0.35 / R
NF
[A]
ROTATION DIRECTION
Ec<E
CR
FORWARD
Ec>E
CR
REVERSE*
*Stops after detecting reverse
(3) Reverse rotation detection function
+
-
+
-
D-FF
D
CK
Q
+
-
H
2
+
H
2
-
H
3
+
H
3
-
Ec
E
CR
H:Output .OPEN
(HIGH-IMPEDANCE)
Fig.11
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