TDA5142 Philips Semiconductors, TDA5142 Datasheet - Page 16

• Manufacturer Part Number: TDA5142
• Description: Brushless DC motor drive circuit
• Manufacturer: Philips Semiconductors

Philips Semiconductors
B
R
It is necessary to protect high current circuits and the
output stages are protected in two ways:
June 1994
RAKE FUNCTION
ELIABILITY
If the voltage on pin 8 is <2.3 V the motor brakes; in this
condition the external outputs are driven to a HIGH
voltage level.
If pin 8 is floating or the voltage is >2.7 V the motor
runs normally.
Current limiting of the ‘lower’ output transistors. The
‘upper’ output transistors use the same base current as
the conducting ‘lower’ transistor (+15%). This means
that the current to and from the output stages is limited.
Thermal protection of the six output transistors is
achieved in such a way that the transistors are switched
off when the local temperature becomes too high.
Brushless DC motor drive circuit
16
Product specification
TDA5142T