HA13705 Hitachi Semiconductor, HA13705 Datasheet - Page 7

• Manufacturer Part Number: HA13705
• Description: IPIC Intelligent Power IC High Side Solenoid Driver
• Manufacturer: Hitachi Semiconductor

Bit Assingnment
Table 2
B i t
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
Note:
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
3. The slew rate during every commutation of spindle motor is selectable by using this bit. Please
4. This bit is used for setting up the commutation time (refer to figure 9) of spindle motor as shown
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
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
about start up of spindle motor.
select the suitable value of this bit for your motor.
in table 4.
suitable value of this bit for your motor.
do not input signal into pin 35 from outside.
Symbol
STANDBY
VCMENAB
SPNENAB
BRAKE
SENSEN
VARCNT
EXTCOM
SRCTL1
SRCTL2
SRCTL3
OFFTIME1
OFFTIME2
SPNGAIN
RETRACT
TEST1
TEST2
Bit Assingnment of Serial Port
High gain
1 (= High)
Active
VCM enable
Spindle enable
Brake enable
B-EMF sense enable
Variable count
External commutation
High slew rate
Commutation time select (See table 4)
Off time select of PWM drive (See table 5)
Retract
For testing
Normal count
0 (= Low)
Stand by
VCM disable
Brake disable
Internal commutation
Low slew rate
Low gain
Not retract
Spindle disable
B-EMF sense disable
D e f a u l t
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
HA13614FH
N o t e
1
1
1
1
2
2
2
3
4
4
5
5
6
1
7
7
7