參數(shù)資料
型號: TDA5345HT
廠商: NXP SEMICONDUCTORS
元件分類: 運動控制電子
英文描述: 5 V spindle & VCM driver combo
中文描述: DISK DRIVE MOTOR CONTROLLER, 2 A, PQFP64
封裝: LOW PROFILE, PLASTIC, TQFP-64
文件頁數(shù): 4/44頁
文件大?。?/td> 213K
代理商: TDA5345HT
1999 June 10
4
Philips Semiconductors
Preliminary specification
5 V spindle & VCM driver combo
TDA5345HT
GENERAL BLOCK DIAGRAM
Spindle
drivers
Vcm
AB class
drivers
12-bit
DAC
DAC
reference
generator
Power On Reset
Thermal
monitor
commutation
manager
P
P
Retract
& spindle
Shock
sensor
amplifier
brake
SpinMotA
SpinMotB
SpinMotC
VcmMinus
VcmPlus
SpinSpeedFilter
VcmDacOut
VcmInput
VcmCompensIn
ShockCompOut
ShockFiltOut
PumpNeg3V
RegNPNBase
RegSense
TempMux
PorN
PorCap
Por5Adj
PowerFault
SCLK
SDATA
SEN_N
CLOCK
VcmCompensOut
SpinCompens
Bemf
Comp
SpinCenterTap
Current sense
Amplifier
VcmSenseInM
VcmSenseInP
(digital)
MechClock
SpinDigOut
BrakePower
Vcm
6-bit
3.3V
Regulator
Serial
interface
(digital)
Vcm
back-EMF
Amplifier
VcmBemf
+
+
Fig.1
Speed Loop
(FLL/PLL)
Charge
Pumps
Start-Up
current
limiter
3-step
Negative
supply
regulator
Neg3V
(digital)
ShockInput
ShockFiltOut
RetReset
Reg3v3PwrUp
OpAmpInM
OpAmpOut
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