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TDA5145TS Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. TDA5145TS
Description  Brushless DC motor drive circuit
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 4 page
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1998 Oct 27
4
Philips Semiconductors
Product speciļ¬cation
Brushless DC motor drive circuit
TDA5145TS
PINNING
SYMBOL
PIN
DESCRIPTION
MOT1
1
driver output 1
MOT1
2
driver output 1
TEST
3
test input/output
MOT2
4
driver output 2
MOT2
5
driver output 2
VMOT
6
input voltage for the output driver
stages
VMOT
7
input voltage for the output driver
stages
BRAKE
8
brake input; this pin may not be left
ļ¬‚oating, a LOW-level voltage must
be applied to disable this function
DIR
9
direction control input; this pin may
not be left ļ¬‚oating
GND2
10
ground supply return for control
circuits
VP
11
supply voltage
CAP-CD
12
external capacitor connection for
adaptive communication delay
timing
CAP-DC
13
external capacitor connection for
adaptive communication delay
timing copy
CAP-ST
14
external capacitor connection for
start-up oscillator
CAP-TI
15
external capacitor connection for
timing
n.c.
16
not connected
n.c.
17
not connected
RESET
18
reset input; this pin may not be left
ļ¬‚oating, a LOW-level voltage must
be applied to disable this function
n.c.
19
not connected
MOT3
20
driver output 3
MOT3
21
driver output 3
MOT0
22
input from the star point of the motor
coils
GND1
23
ground (0 V) motor supply return for
output stages
GND1
24
ground (0 V) motor supply return for
output stages
FUNCTIONAL DESCRIPTION
The TDA5145TS offers a sensorless 3-phase motor drive
function. It is unique in its combination of sensorless motor
drive and full-wave drive. The TDA5145TS 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 TDA5145TS offers the following features:
ā€¢ Sensorless commutation by using the motor EMF
ā€¢ Built-in start-up circuit
ā€¢ Optimum commutation, independent of motor type or
motor loading
ā€¢ Built-in flyback diodes
ā€¢ Three phase full-wave drive
ā€¢ High output current (2.0 A)
ā€¢ Outputs protected by current limiting and thermal
protection of each output transistor
ā€¢ Low current consumption by adaptive base-drive
ā€¢ Soft-switching pulse output for low radiation
ā€¢ Direction of rotation controlled by one pin
ā€¢ Brake function.
Fig.2 Pin configuration.
handbook, halfpage
MOT1
MOT1
TEST
MOT2
MOT2
VMOT
VMOT
BRAKE
DIR
GND2
VP
CAP-CD
GND1
GND1
MOT0
MOT3
n.c.
RESET
MOT3
n.c.
n.c.
CAP-TI
CAP-ST
CAP-DC
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
TDA5145TS
MGR392




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