TDA5142T Datasheet, PDF (4/20 Pages) NXP Semiconductors – Brushless DC motor drive circuit

Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5142T
PINNING
SYMBOL
OUT-NB
OUT-PB
GND1
OUT-PC
OUT-NC
VMOT
TEST
BRAKE
FG
GND2
V_P
CAP-CD
CAP-DC
CAP-ST
CAP-TI
+AMP IN
−AMP IN
AMP OUT
COMP-A
COMP-B
COMP-C
MOT0
OUT-NA
OUT-PA
PIN
DESCRIPTION
1
driver output B for driving the n-channel power FET or power NPN
2
driver output B for driving the n-channel power FET or power PNP
3
ground (0 V) motor supply return for output stages
4
driver output C for driving the n-channel power FET or power PNP
5
driver output C for driving the n-channel power FET or power NPN
6
input voltage for the output driver stages
7
test input/output
8
brake input
9
frequency generator: output of the rotation speed detector stage
10
ground supply return for control circuits
11
supply voltage
12
external capacitor connection for adaptive communication delay timing
13
external capacitor connection for adaptive communication delay timing copy
14
external capacitor connection for start-up oscillator
15
external capacitor connection for timing
16
non-inverting input of the transconductance amplifier
17
inverting input of the transconductance amplifier
18
transconductance amplifier output (open collector)
19
comparator input corresponding to output A
20
comparator input corresponding to output B
21
comparator input corresponding to output C
22
input from the star point of the motor coils
23
driver output A for driving the n-channel power FET or power NPN
24
driver output A for driving the n-channel power FET or power PNP
June 1994
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