Philips TDA5140A, TDA5140AT Datasheet

INTEGRATED CIRCUITS

DATA SHEET

TDA5140A

Brushless DC motor drive circuit

Product specification	April 1994
Supersedes data of March 1992
File under Integrated Circuits, IC02

Philips Semiconductors

Philips Semiconductors	Product specification
Brushless DC motor drive circuit	TDA5140A

FEATURES

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

∙Built-in start-up circuitry

∙Three push-pull outputs:

–0.8 A output current (typ.)

–low saturation voltage

–built-in current limiter

∙Thermal protection

∙Flyback diodes

∙Tacho output without extra sensor

∙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.

APPLICATIONS

∙VCR

∙Laser beam printer

∙Fax machine

∙Blower

∙Automotive.

GENERAL DESCRIPTION

The TDA5140A 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.

SYMBOL	PARAMETER	CONDITIONS	MIN.	TYP.	MAX.	UNIT
VP	supply voltage	note 1	4	−	18	V
VVMOT	input voltage to the output	note 2	1.7	−	16	V
	driver stages
VDO	drop-out output voltage	IO = 100 mA	−	0.93	1.05	V
ILIM	current limiting	VVMOT = 10 V; RO = 3.9 Ω	0.7	0.8	1	A

Notes

1.An unstabilized supply can be used.

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

ORDERING INFORMATION

EXTENDED TYPE NUMBER			PACKAGE
	PINS	PIN POSITION		MATERIAL	CODE
TDA5140A	18	DIL		plastic	SOT102
TDA5140AT	20	SOL		plastic	SOT163A

April 1994

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Philips Semiconductors	Product specification
Brushless DC motor drive circuit	TDA5140A

BLOCK DIAGRAM

Fig.1	Block diagram (SOT102; DIL18).
April 1994	3

Philips Semiconductors				Product specification
Brushless DC motor drive circuit				TDA5140A
PINNING
SYMBOL	PIN	PIN	DESCRIPTION
	DIL18	SO20
MOT1	1	1	driver output 1
TEST	2	2	test input/output
n.c.		3	not connected
MOT2	3	4	driver output 2
VMOT	4	5	input voltage for the output driver stages
PG IN	5	6	position generator: input from the position detector sensor to the position
			detector stage (optional); only if an external position coil is used
PG/FG	6	7	position generator/frequency generator: output of the rotation speed and position
			detector stages (open collector digital output, negative-going edge is valid)
GND2	7	8	ground supply return for control circuits
VP	8	9	positive supply voltage
CAP-CD	9	10	external capacitor connection for adaptive communication delay timing
CAP-DC	10	11	external capacitor connection for adaptive communication delay timing copy
CAP-ST	11	12	external capacitor connection for start-up oscillator
CAP-TI	12	13	external capacitor connection for timing
+AMP IN	13	14	non-inverting input of the transconductance amplifier
−AMP IN	14	15	inverting input of the transconductance amplifier
AMP OUT	15	16	transconductance amplifier output (open collector)
MOT3	16	17	driver output 3
n.c.	−	18	not connected
MOT0	17	19	input from the star point of the motor coils
GND1	18	20	ground (0 V) motor supply return for output stages

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Philips Semiconductors	Product specification
Brushless DC motor drive circuit	TDA5140A

Fig.2 Pin configuration (SOT102; DIL18).

FUNCTIONAL DESCRIPTION

The TDA5140A offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full-wave drive. The TDA5140A 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 TDA5140A 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 (0.8 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.

Fig.3 Pin configuration (SOT163A; SO20L).

∙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.

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Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5140A

LIMITING VALUES

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

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

VP

supply voltage

−

18

V

VI

input voltage; all pins except

VI < 18 V

−0.3

VP + 0.5

V

VMOT

VVMOT

VMOT input voltage

−0.5

17

V

VO

output voltage

AMP OUT and PG/FG

GND

VP

V

MOT1, MOT2 and MOT3

−1

VVMOT + VDHF

V

VI

input voltage CAP-ST, CAP-TI,

−

2.5

V

CAP-CD and CAP-DC

Tstg

storage temperature

−55

+150

°C

Tamb

operating ambient temperature

0

+70

°C

Ptot

total power dissipation

see Figs 4 and 5

−

−

W

Ves

electrostatic handling

see “Handling”

−

500

V

3

MBD535

3

MBD536

P tot

P tot

(W)

(W)

2.28

2

2

1.05

1.38

1

0

0

50

0

50

70

100

150

200

50

0

50

70

100

150

200

Tamb (oC)

Tamb (oC)

Fig.4 Power derating curve (SOT102; DIL18).

Fig.5 Power derating curve (SOT163A; SO20L).

HANDLING

Every pin withstands the ESD test in accordance with “MIL-STD-883C class 2”. Method 3015 (HBM 1500 Ω, 100 pF) 3 pulses + and 3 pulses − on each pin referenced to ground.

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Philips Semiconductors						Product specification
Brushless DC motor drive circuit							TDA5140A
CHARACTERISTICS
VP = 14.5 V; Tamb = 25 °C; unless otherwise specified.
SYMBOL	PARAMETER		CONDITIONS	MIN.	TYP.		MAX.	UNIT
Supply
VP	supply voltage		note 1	4	−		18	V
IP	supply current		note 2	−	3.7		5	mA
VVMOT	input voltage to the output driver		see Fig.1	1.7	−		16	V
	stages
Thermal protection
TSD	local temperature at			130	140		150	°C
	temperature sensor causing
	shut-down
T	reduction in temperature before		after shut-down	−	TSD − 30		−	K
	switch-on
MOT0; centre tap
VI	input voltage			−0.5	−		VVMOT	V
II	input bias current		0.5 V < VI < VVMOT − 1.5 V	−10	−		0	μA
VCSW	comparator switching level		note 3	±20	±30		±40	mV
VCSW	variation in comparator			−3	0		+3	mV
	switching levels
Vhys	comparator input hysteresis			−	75		−	μV
MOT1, MOT2 and MOT3
VDO	drop-out output voltage		IO = 100 mA	−	0.93		1.05	V
			IO = 500 mA	−	1.65		1.80	V
VOL	variation in saturation voltage		IO = 100 mA	−	−		180	mV
	between lower transistors
VOH	variation in saturation voltage		IO = −100 mA	−	−		180	mV
	between upper transistors
ILIM	current limiting		VVMOT = 10 V; RO = 6.8 Ω	0.7	0.8		1	A
VDHF	diode forward voltage (diode DH)		IO = −500 mA; notes 4	−	−		1.5	V
			and 5; see Fig.1
VDLF	diode forward voltage (diode DL)		IO = 500 mA; notes 4 and	−1.5	−		−	V
			5; see Fig.1
IDM	peak diode current		note 5	−	−		1	A
+AMP IN and −AMP IN
VI	input voltage			−0.3	−		VP − 1.7	V
	differential mode voltage without			−	−		±VP	V
	'latch-up'
Ib	input bias current			−	−		650	nA
CI	input capacitance			−	4		−	pF
Voffset	input offset voltage			−	−		10	mV

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Philips Semiconductors						Product specification
Brushless DC motor drive circuit							TDA5140A
SYMBOL	PARAMETER		CONDITIONS	MIN.	TYP.		MAX.	UNIT
AMP OUT (open collector)
II	output sink current			40	−		−	mA
Vsat	saturation voltage		II = 40 mA	−	1.5		2.1	V
VO	output voltage			−0.5	−		+18	V
SR	slew rate		RL = 330 Ω; CL = 50 pF	−	60		−	mA/μs
Gtr	transfer gain			0.3	−		−	S
PG IN
VI	input voltage			−0.3	−		+5	V
Ib	input bias current			−	−		650	nA
RI	input resistance			5	−		30	kΩ
VCWS	comparator switching level			86	−		107	mV
Vhys	comparator input hysteresis			−	±8		−	mV
PG/FG (open collector)
VOL	LOW level output voltage		IO = 1.6 mA	−	−		0.4	V
VOH(max)	maximum HIGH level output			VP	−		−	V
	voltage
tTHL	HIGH-to-LOW transition time		CL = 50 pF; RL = 10 kΩ	−	0.5		−	μs
	ratio of PG/FG frequency and			−	1 : 2		−
	commutation frequency
δ	duty factor			−	50		−	%
tPL	pulse width LOW		after a PG IN pulse	5	7		18	μs
CAP-ST
Isink	output sink current			1.5	2.0		2.5	μA
Isource	output source current			−2.5	−2.0		−1.5	μA
VSWL	LOW level switching voltage			−	0.20		−	V
VSWH	HIGH level switching voltage			−	2.20		−	V
CAP-TI
Isink	output sink current			−	28		−	μA
Isource	output source current		0.05 V < VCAP-TI < 0.3 V	−	−57		−	μA
			0.3 V < VCAP-TI < 2.2 V	−	−5		−	μA
VSWL	LOW level switching voltage			−	50		−	mV
VSWM	MIDDLE level switching voltage			−	0.30		−	V
VSWH	HIGH level switching voltage			−	2.20		−	V

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