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TDA5341 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. TDA5341
Description  Brushless DC motor and VCM drive circuit with speed control
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo 

 
 2 page
background image
1997 Jul 10
2
Philips Semiconductors
Product specification
Brushless DC motor and VCM drive circuit
with speed control
TDA5341
FEATURES
• Full-wave commutation (using push-pull output stages)
without position sensors
• Built-in start-up circuitry
• Three push-pull MOS outputs:
– 1 A output current
– Low voltage drop
– Built-in current limiter
• Thermal protection
• General purpose operational amplifier
• Reset generator
• Motor brake facility
• Actuator driver (H-bridge current-controlled)
• Power-down detector
• Automatic park and brake procedure
• Adjustable park voltage
• Sleep mode
• Speed control with Frequency-Locked Loop (FLL)
• Serial port
• Friction reduction prior to spin-up.
APPLICATIONS
• Hard Disk Drive (HDD).
GENERAL DESCRIPTION
The TDA5341 is a BiCMOS integrated circuit used to drive
brushless DC motors in full-wave mode. The device
senses the rotor position using an EMF sensing technique
and is ideally suited as a drive circuit for a hard disk drive
motor.
The TDA5341 also includes a Voice Coil Motor driver
(VCM), reset and park facilities and an accurate speed
regulator. In addition, a serial port facilitates the control of
the device.
QUICK REFERENCE DATA
Measured over full voltage and temperature range.
ORDERING INFORMATION
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
VDD
general supply voltage for logic and power
4.5
5.0
5.25
V
IoMOT
motor output current
1.3
1.6
1.9
A
RDS(MOT)
motor output resistance
1.1
1.56
IoACT
actuator output current
0.7
1.1
1.4
A
RDS(ACT)
actuator output resistance
2.0
2.5
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA5341G
LQFP64
plastic low profile quad flat package; 64 leads; body 10
× 10 × 1.4 mm
SOT314-2




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