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參數(shù)資料
| 型號： | HA13614FH |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Combo (Spindle & VCM) Driver |
| 中文描述： | 組合（主軸 |
| 文件頁數(shù)： | 7/26頁 |
| 文件大?。?/td> | 122K |
| 代理商： | HA13614FH |
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HA13614FH
7
Bit Assingnment
Table 2
Bit Assingnment of Serial Port
Bit
Symbol
STANDBY
1 (= High)
0 (= Low)
Default
Note
D0
Active
Stand by
0
1
D1
VCMENAB
VCM enable
VCM disable
0
1
D2
SPNENAB
Spindle enable
Spindle disable
0
1
D3
BRAKE
Brake enable
Brake disable
0
1
D4
SENSEN
B-EMF sense enable
B-EMF sense disable
0
2
D5
VARCNT
Variable count
Normal count
0
2
D6
EXTCOM
External commutation
Internal commutation
0
2
D7
SRCTL1
High slew rate
Low slew rate
0
3
D8
SRCTL2
Commutation time select (See table 4)
0
4
D9
SRCTL3
0
4
D10
OFFTIME1
Off time select of PWM drive (See table 5)
0
5
D11
OFFTIME2
0
5
D12
SPNGAIN
High gain
Low gain
0
6
D13
RETRACT
Retract
Not retract
0
1
D14
TEST1
For testing
0
7
D15
Note:
TEST2
0
7
1. The priority of operation for each bit is as shown in table 3.
2. This bit is using for start up of spindle motor. Please refer to the application note explained
about start up of spindle motor.
3. The slew rate during every commutation of spindle motor is selectable by using this bit. Please
select the suitable value of this bit for your motor.
4. This bit is used for setting up the commutation time (refer to figure 9) of spindle motor as shown
in table 4.
5. This bit is used for setting up the off time at PWM driving of spindle motor as shown in table 5.
6. The gain of current control for spindle motor is selectable by using this bit. Please select the
suitable value of this bit for your motor.
7. This bit will be used in fabrication test. Please set up D15 = “0” normally.
SPNCTL terminal (pin 35) is using for output terminal in the case of “1” for testing. Then please
do not input signal into pin 35 from outside.
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