TDA5341 Ver la hoja de datos (PDF) - Philips Electronics
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TDA5341 Datasheet PDF : 28 Pages
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Philips Semiconductors
Brushless DC motor and VCM drive circuit
with speed control
Product specification
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.
SYMBOL
PARAMETER
VDD
IoMOT
RDS(MOT)
IoACT
RDS(ACT)
general supply voltage for logic and power
motor output current
motor output resistance
actuator output current
actuator output resistance
MIN.
4.5
1.3
−
0.7
−
TYP.
5.0
1.6
1.1
1.1
2.0
MAX.
5.25
1.9
1.56
1.4
2.5
UNIT
V
A
Ω
A
Ω
ORDERING INFORMATION
TYPE
NUMBER
TDA5341G
PACKAGE
NAME
DESCRIPTION
LQFP64 plastic low profile quad flat package; 64 leads; body 10 × 10 × 1.4 mm
VERSION
SOT314-2
1997 Jul 10
2
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