Philips TDA5141T, TDA5141 Datasheet

INTEGRATED CIRCUITS

DATA SH EET

TDA5141

Brushless DC motor drive circuit

Product speciﬁcation Supersedes data of March 1992 File under Integrated Circuits, IC02

Philips Semiconductors

April 1994

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5141

FEATURES

• Full-wave commutation (using push/pull drivers at the output stages) without position sensors

• Built-in start-up circuitry

APPLICATIONS

• VCR

• Laser beam printer

• Fax machine.

• Three push-pull outputs:

– output current 1.9 A (typ.) – low saturation voltage – built-in current limiter

• Thermal protection

• Flyback diodes

• Tacho output without extra sensor

GENERAL DESCRIPTION

The TDA5141 is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position. It is ideally suited for applications requiring powerful output stages (minimum current limit of 1.9 A).

• Position pulse stage for phase-locked-loop control

• Transconductance amplifier for an external control

transistor.

QUICK REFERENCE DATA Measured over full voltage and temperature range.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

P

V

VMOT

supply voltage note 1 4 − 18 V input voltage to the output

note 2 1.7 − 16 V

driver stages V I

DO

LIM

drop-out output voltage IO = 100 mA − 0.9 1.05 V

current limiting V

= 10 V; RO= 1.2 Ω 1.6 1.9 2.3 A

VMOT

Notes

1. An unstabilized supply can be used.

2. V

= VP; +AMP IN = −AMP IN = 0 V; all outputs IO = 0 mA.

VMOT

ORDERING INFORMATION

PACKAGE

EXTENDED TYPE NUMBER

PINS PIN POSITION MATERIAL CODE

TDA5141 18 DIL plastic SOT102 TDA5141T 28 SOL plastic SOT136A TDA5141AT 20 SOL plastic SOT163A

April 1994 2

Philips Semiconductors Product speciﬁcation

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Brushless DC motor drive circuit TDA5141

BLOCK DIAGRAM

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Fig.1 Block diagram (SOT102; DIL18).

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5141

PINNING

SYMBOL

MOT1 1 1 1 and 2 driver output 1 TEST 2 2 3 test input/output n.c. 3 4 not connected MOT2 3 4 5 and 6 driver output 2 n.c. −− 7 not connected VMOT 4 5 8 and 9 input voltage for the output driver stages PG IN 5 6 10 position generator: input from the position detector sensor to the

PG/FG 6 7 11 position generator/frequency generator: output of the rotation

GND2 7 8 12 ground supply return for control circuits V

P

CAP-CD 9 10 14 external capacitor connection for adaptive communication delay

CAP-DC 10 11 15 external capacitor connection for adaptive communication delay

CAP-ST 11 12 16 external capacitor connection for start-up oscillator CAP-TI 12 13 17 external capacitor connection for timing +AMP IN 13 14 18 non-inverting input of the transconductance ampliﬁer

−AMP IN 14 15 19 inverting input of the transconductance ampliﬁer AMP OUT 15 16 20 transconductance ampliﬁer output (open collector) n.c. −−21 and 22 not connected MOT3 16 17 23 and 24 driver output 3 n.c. − 18 25 not connected MOT0 17 19 26 input from the star point of the motor coils GND1 18 20 27 and 28 ground (0 V) motor supply return for output stages

DIL18

8 9 13 supply voltage

SO20L

SO28L

DESCRIPTION

position detector stage (optional); only if an external position coil is used

speed and position detector stages (open collector digital output, negative-going edge is valid)

timing

timing copy

April 1994 4

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5141

Fig.2 Pin configuration (SOT102; DIL18). Fig.3 Pin configuration (SOT163A; SO20L).

Fig.4 Pin configuration (SOT136A; SO28L).

April 1994 5

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5141

FUNCTIONAL DESCRIPTION

The TDA5141 offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full-wave drive. The TDA5141 offers protected outputs capable of handling high currents and can be used with star or delta connected motors. It can easily be adapted for different motors and applications. The TDA5141 offers the following features:

• Sensorless commutation by using the motor EMF.

• Built-in start-up circuit.

• Optimum commutation, independent of motor type or motor loading.

• Built-in flyback diodes.

• Three phase full-wave drive.

• High output current (1.9 A).

• Outputs protected by current limiting and thermal protection of each output transistor.

• Low current consumption by adaptive base-drive.

• Accurate frequency generator (FG) by using the motor EMF.

• Amplifier for external position generator (PG) signal.

• Suitable for use with a wide tolerance, external PG sensor.

• Built-in multiplexer that combines the internal FG and external PG signals on one pin for easy use with a controlling

microprocessor.

• Uncommitted operational transconductance amplifier (OTA), with a high output current, for use as a control amplifier.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

P

V

I

supply voltage − 18 V input voltage; all pins except

VI< 18 V −0.3 VP + 0.5 V

VMOT

V

VMOT

V

O

V

I

VMOT input voltage −0.5 17 V output voltage

AMP OUT and PG/FG GND V MOT1, MOT2 and MOT3 −1V

input voltage CAP-ST, CAP-TI,

− 2.5 V

P VMOT

+ V

DHF

V V

CAP-CD and CAP-DC

T

stg

T

amb

P

tot

V

es

storage temperature −55 +150 °C operating ambient temperature 0 +70 °C total power dissipation see Figs 5 to 7 −− W electrostatic handling see Chapter “Handling” − 500 V

April 1994 6

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5141

o

T ( C)

amb

MBD535

P (W)

2.28

1.05

3

tot

2

0

50

0 200

50 100 150

70

Fig.5 Power derating curve (SOT102; DIL18).

3

P

tot

(W)

2

1.38

1

0

50

0 200

50 100 150

70

T ( C)

amb

Fig.6 Power derating curve (SOT163A; SO20L).

HANDLING

MBD536

o

MBD557

o

T ( C)

amb

P (W)

1.62

3

tot

2

1

0

50

0 200

50 100 150

Fig.7 Power derating curve (SOT136A; SO28L).

Every pin withstands the ESD test according to

“MIL-STD-883C class 2”

. Method 3015 (HBM 1500 Ω, 100 pF) 3 pulses + and 3 pulses − on each pin referenced to ground.

April 1994 7

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5141

CHARACTERISTICS

V

= 14.5 V; T

P

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

I

P

V

VMOT

Thermal protection

T

SD

∆T reduction in temperature before

MOT0; centre tap

V

I

V

CSW

∆V

CSW

V

hys

MOT1, MOT2 and MOT3

V

DO

∆V

OL

∆V

OH

I

LIM

V

DHF

V

DLF

I

DM

+AMP IN and −AMP IN

V

I

b

C

I

V

offset

= 25 °C; unless otherwise speciﬁed.

amb

supply voltage note 1 4 − 18 V supply current note 2 − 5.2 6.8 mA input voltage to the output driver

see Fig.1 1.7 − 16 V

stages

local temperature at temperature

130 140 150 °C

sensor causing shut-down

after shut-down − T

− 30 − K

SD

switch-on

input voltage −0.5 − V input bias current 0.5 V < VI< V

− 1.5 V −10 − 0 µA

VMOT

V

comparator switching level note 3 ±20 ±30 ±40 mV variation in comparator switching

−3 0 +3 mV

levels comparator input hysteresis − 75 −µV

drop-out output voltage IO = 100 mA − 0.90 1.05 V

I

= 1000 mA − 1.65 1.85 V

O

variation in saturation voltage

IO = 100 mA −− 180 mV

between lower transistors variation in saturation voltage

IO = −100 mA −− 180 mV

between upper transistors current limiting V diode forward voltage (diode DH)I

= 10 V; RO= 1.2 Ω 1.6 1.9 2.3 A

VMOT

= −500 mA;

O

−− 1.5 V

notes 4 and 5; see Fig.1

diode forward voltage (diode DL)I

= 500 mA;

O

−1.5 −−V

notes 4 and 5; see Fig.1

peak diode current note 5 −− 2.3 A

input voltage −0.3 − VP− 1.7 V differential mode voltage without

−− ±V

P

V

‘latch-up’ input bias current −− 650 nA input capacitance − 4 − pF input offset voltage −− 10 mV

April 1994 8

Philips TDA5141T, TDA5141 Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

FEATURES

APPLICATIONS

GENERAL DESCRIPTION

ORDERING INFORMATION

BLOCK DIAGRAM

PINNING

FUNCTIONAL DESCRIPTION

LIMITING VALUES

HANDLING

CHARACTERISTICS