參數(shù)資料
型號(hào)： TDA5149G
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： 12 V Voice Coil Motor VCM driver and spindle motor pre-driver combination chip
中文描述： DISK DRIVE MOTOR CONTROLLER, 2.5 A, PQFP64
封裝： 10 X 10 X 1.40 MM, PLASTIC, LQFP-64
文件頁(yè)數(shù)： 11/28頁(yè)
文件大?。?/td> 148K
代理商： TDA5149G
1996 May 06
11
Philips Semiconductors
Product specification
12 V Voice Coil Motor (VCM) driver and
spindle motor pre-driver combination chip
TDA5149G
Table 1
Serial port registers
Table 2
REG # 0: address 000; DATA = | INIT | COMMCLK | SPINMODE | SDISABLE | SBRAKE |
Table 3
REG # 1: address 001; | not used | HARD_SW | LHOLD | LACTIVE | SLEEP |
Table 4
REG # 2: address 010; | not used | not used | VGAINSEL | VCM_CTRL_1 | VCM_CTRL_0 |
REGISTER
ADDRESSED
DATA4
DATA3
DATA2
DATA1
DATA0
Reg # 0
Reg # 1
Reg # 2
Reg # 3
Reg # 4
Reg # 5
Reg # 6
Reg # 7
INIT
COMMCLCK
HARD_SW
not used
not used
STARTUP_3
WATCHDOG_3
not used
BLANK_3
SPINMODE
LHOLD
VGAINSEL
PRESCALER_2
STARTUP_2
WATCHDOG_2
COMDELIM_2
BLANK_2
SDISABLE
LACTIVATE
VCM_CTRL_1
PRESCALER_1
STARTUP_1
WATCHDOG_1
COMDELIM_1
BLANK_1
SBRAKE
SLEEP
VCM_CTRL_0
PRESCALER_0
STARTUP_0
WATCHDOG_0
COMDELIM_0
BLANK_0
not used
not used
not used
STARTUP_4
WATCHDOG_4
not used
BLANK_4
DATA BIT
RESET
STATE
DESCRIPTION
INIT
COMMCLK
SPINMODE
1
0
0
initializes the three bits commutation shift register in state 1 (see Table 13)
commutation clock in stepper mode (one commutation every LOW-to-HIGH transition)
stepper/BEMF detection mode selection. SPINMODE = 1 means stepper motor mode
in hard-switching configuration
logic 1 sets the pre-drivers outputs LOW so that the spindle motor coils are in the
high-impedance state
logic 1 sets the lower pre-driver outputs HIGH and the upper pre-driver outputs LOW
so that the spindle motor coils are shorted to ground
SDISABLE
1
SBRAKE
0
DATA BIT
RESET
STATE
DESCRIPTION
HARD_SW
0
logic 1 disables the soft switching circuitry, which means PWM is applied on the lower
FETs only.This mode is also forced in stepper motor mode.
logic 1 turns on the hold current supplied by V
DDD
through the latch. It is ignored if
LACTIVE = 1
logic 1 turns on the activate current supplied by V
DD
through the latch
logic 1 disables spindle, VCM and latch driver outputs. The whole analog circuitry is
turned off except the reference bandgap and the voltage monitors. The uncommitted
operational amplifier is also cut off.
LHOLD
0
LACTIVE
SLEEP
0
0
DATA BIT
RESET
STATE
DESCRIPTION
VGAINSEL
1
logic 1 turns on the switch between V
CMIN1
and V
CMIN2
, resulting in a higher gain for the
transconductance of the VCM closed loop
see Table 5
see Table 5
VCM_CTRL_1
VCM_CTRL_0
1
1
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