TDA5145 Datasheet, PDF (4/24 Pages) NXP Semiconductors – Brushless DC motor drive circuit

Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5145
PINNING
SYMBOL
MOT1
TEST
n.c.
MOT2
VMOT
BRAKE
DIR
FG
GND2
V_P
CAP-CD
CAP-DC
CAP-ST
CAP-TI
+AMP IN
−AMP IN
n.c.
RESET
AMP OUT
MOT3
n.c.
MOT0
GND1
PIN⁽¹⁾
DESCRIPTION
1 and 2 driver output 1
3
test input/output
4
not connected
5 and 6 driver output 2
7 and 8 input voltage for the output driver stages
9
brake input; this pin may not be left floating, a LOW level voltage must be applied to disable
this function
10
direction control input; this pin may not be left floating
11
frequency generator: output of the rotation speed (open collector digital output)
12
ground supply return for control circuits
13
supply voltage
14
external capacitor connection for adaptive communication delay timing
15
external capacitor connection for adaptive communication delay timing copy
16
external capacitor connection for start-up oscillator
17
external capacitor connection for timing
18
non-inverting input of the transconductance amplifier
19
inverting input of the transconductance amplifier
20
not connected
21
reset input; this pin may not be left floating, a LOW level voltage must be applied to disable
this function
22
transconductance amplifier output (open collector)
23 and 24 driver output 3
25
not connected
26
input from the star point of the motor coils
27 and 28 ground (0 V) motor supply return for output stages
Note
1. Pin numbers for both DIL and SOL packages are identical.
June 1994
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