TDA5144 Datasheet, PDF (4/20 Pages) NXP Semiconductors – Brushless DC motor drive circuit

Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5144
PINNING
SYMBOL
MOT1
TEST
n.c.
MOT2
n.c.
VMOT
GND3
FG
GND2
V_P
CAP-CD
CAP-DC
CAP-ST
CAP-TI
+AMP IN
−AMP IN
AMP OUT
n.c.
MOT3
n.c.
MOT0
GND1
PIN
SO20
SO28
DESCRIPTION
1
1 and 2 driver output 1
2
3
test input/output
3
4
not connected
4
5 and 6 driver output 2
−
7
not connected
5
8 and 9 input voltage for the output driver stages
6
10
ground supply; must be connected
7
11
frequency generator: output of the rotation speed (open collector digital output)
8
12
ground supply return for control circuits
9
13
supply voltage
10
14
external capacitor connection for adaptive communication delay timing
11
15
external capacitor connection for adaptive communication delay timing copy
12
16
external capacitor connection for start-up oscillator
13
17
external capacitor connection for timing
14
18
non-inverting input of the transconductance amplifier
15
19
inverting input of the transconductance amplifier
16
20
transconductance amplifier output (open collector)
−
21 and 22 not connected
17
23 and 24 driver output 3
18
25
not connected
19
26
input from the star point of the motor coils
20
27 and 28 ground (0 V) motor supply return for output stages
June 1994
4