PDF SA56203S Data sheet ( Hoja de datos )

Número de pieza	SA56203S
Descripción	One-chip motor driver
Fabricantes	NXP Semiconductors
Logotipo
Hay una vista previa y un enlace de descarga de SA56203S (archivo pdf) en la parte inferior de esta página. Total 30 Páginas
No Preview Available ! SA56203S One-chip motor driver Rev. 01 — 31 January 2005 www.DataSheet4U.com Preliminary data sheet 1. General description The SA56203S is a one-chip motor driver IC that is capable of driving all motors of CD or DVD systems e.g. spindle, sled and loading motors and actuators on the optical pick-up unit. The driver intended for the 3-phase, brushless, Hall-commutated spindle motor uses True-Silent PWM. This proprietary technology ensures that all 3-phase motor currents are sinusoidal resulting in an optimally silent driver. Internal regeneration of the back EMF of the spindle motor enables the driver to operate in current-steering mode without using external power-dissipating sense resistors. The driver for the 2-phase sled stepper motor operates in current-steering PWM mode. In addition the IC contains four full-bridge linear channels that can be used to drive a loading motor and 3D actuators (focus, tracking and tilt). The SA56203S is available in an exposed die pad HTSSOP56 package. 2. Features s True-Silent PWM spindle motor driver s Low heat generation due to power-efﬁcient direct full-bridge switching of spindle motor driver s Controlled spindle motor current during acceleration and brake s Reverse torque brake function (full bridge) s Adjustable spindle motor current limiter s Internal regeneration for EMF of spindle motor s Current-steering PWM controlled stepper motor driver for sled s Four class-AB linear channels for loading motor and 3D actuators (focus, tracking and tilt) s Tracking actuator driver with back EMF ampliﬁer s Loading motor driver with transresistance ampliﬁer for loading current s Low on-resistance D-MOSFET output power stages s Built-in thermal shutdown and thermal warning s Interfaces to 3 V and 5 V logic s Package with low thermal resistance to heatsink (reﬂowable die pad) s Lead free package. 1 page Philips Semiconductors SA56203Swww.DataSheet4U.com One-chip motor driver Table 2: Pin description …continued Symbol Pin Description REMF 9 external resistor for EMF regeneration RLIM 10 external resistor for current limit VSS1(SPN) U 11 12 spindle driver ground 1 spindle driver output U VDD1(SPN) V 13 14 spindle driver supply voltage 1 spindle driver output V VSS2(SPN) W 15 16 spindle driver ground 2 spindle driver output W VDD2(SPN) FG 17 18 spindle driver supply voltage 2 frequency generator output VSSA 19 analog ground VINSPN 20 spindle driver input voltage for spindle motor current VINREF 21 reference input voltage for all motor drivers VDDA CP1 22 analog supply voltage 23 charge pump capacitor connection 1 CP2 24 charge pump capacitor connection 2 CP3 25 charge pump capacitor connection 3 CTL1 26 driver logic control input 1 CTL2 27 driver logic control input 2 TEMP 28 thermal warning VINSLD1 29 sled driver 1 input for sled motor current VINSLD2 30 sled driver 2 input for sled motor current VLDTRK 31 voltage output loader/track VSS(SLD) 32 sled driver ground SLDO2− 33 sled driver output 2 negative SLDO2+ 34 sled driver output 2 positive RSLD2 35 sled driver 2 current sense SLDO1− 36 sled driver output 1 negative SLDO1+ 37 sled driver output 1 positive RSLD1 38 sled driver 1 current sense VDD(SLD) 39 sled driver sense supply voltage TLTO− 40 tilting driver output negative TLTO+ 41 tilting driver output positive FCSO− 42 focus driver output negative FCSO+ 43 focus driver output positive VDD(ACT) 44 focus/tilt drivers supply voltage VSS(ACT) 45 actuator drivers ground TRKO− 46 tracking driver output negative TRKO+ 47 tracking driver output positive LDO− 48 loading driver output negative LDO+ 49 loading driver output positive 9397 750 14192 Preliminary data sheet Rev. 01 — 31 January 2005 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. 5 of 30 5 Page Philips Semiconductors SA56203Sw w w . D a t a S h e e t 4 U . c o One-chip motor driver 7.8 Sled motor driver Two current steering channels are available to drive a stepper motor. Per channel an external sense resistor Rsense is used that is connected to VDD(SLD). A peak-current control loop is implemented that modulates the duty cycle of the PWM signal (see Figure 9). VINSLD 47 kΩ 47 kΩ VVINREF input amplifier VDD(SLD) Rsense RSLD − +Σ A R Q S CLOCK IRSLD LOGIC DRIVE DRIVER SLDO+ M SLDO− IO 001aab483 Fig 9. Peak-current control architecture of sled motor driver VSS(SLD) The clock generator has a nominal frequency of -2f---5o--s-6--c = 70 kHz. See Figure 10, transfer function from input voltage VVINSLD to output current at a typical Rsense of 0.5 Ω. Input-to-output transconductance gain can be scaled down by connecting external resistor Rext in series with the input VINSLD. IOUT (A) 1A VVINSLD − VVINREF (V) dead zone −30 mV +1 A/V 30 mV −1 A +1 A/V 001aaa436 Fig 10. Transfer function of sled motor driver Both limiting current and transconductance gain are related to Rsense in the following way: Transconductance gain: gm = --I---o-- V in = 2-----×-----R-1---s--e--n---s--e 9397 750 14192 Preliminary data sheet Rev. 01 — 31 January 2005 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. 11 of 30 11 Page

Páginas	Total 30 Páginas
PDF Descargar	[ Datasheet SA56203S.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
SA56203	One-chip motor driver	NXP Semiconductors
SA56203S	One-chip motor driver	NXP Semiconductors
SA56203TW	One-chip motor driver	NXP Semiconductors

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar