參數(shù)資料
型號(hào): HA13614
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): 14/26頁
文件大小: 122K
代理商: HA13614
HA13614FH
14
Commutation Timing of the Spindle motor
B-EMF
PHASE
(EXTCOM=1)
PHASE
(EXTCOM=0)
*1
tspndly
*2
*3
tsrctl
commutation
time
U
V
W
Note: 1.
2.
3.
OUTPUT
IU
CT
Vpss
Vpss/2
GND
0
B-EMF
PWM
PWM
PWM
In the case of external commutation mode (EXTCOM=1), the signal PHASE will toggle at every B-
EMF zero-crossing, and selected the internal commutation mode (EXTCOM=0), the PHASE will
have the same period as B-EMF of the spindle motor.
This is delay time by pre-LPF of the B-EMF amplifier. This delay time can be adjust by the value
of external filter capacitor C101, C102. To get the maximum driving efficiency of the spindle
motor, these capacitor value should be chosen as equation (17) in the “External components”
section.
The slew rate of every commutation timing is controllable by changing the SRCTL1, SRCTL2 and
SRCTL3 in the serial port.
Figure 9 Commutation Timing of the Spindle motor
相關(guān)PDF資料
PDF描述
HA13614FH Combo (Spindle & VCM) Driver
HA13631T CD-ROM Combo Driver
HA13705 IPIC Intelligent Power IC High Side Solenoid Driver
HA13705C IPIC Intelligent Power IC High Side Solenoid Driver
HA1377 Dual 5.8W Audio Power Amplifiers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA13614FH 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Combo (Spindle & VCM) Driver
HA13631T 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CD-ROM Combo Driver
HA-1370 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Compatible Enable/Disable
HA13702A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver
HA13703A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver