TDA5145 NXP Semiconductors, TDA5145 Datasheet - Page 16

• Manufacturer Part Number: TDA5145
• Manufacturer: NXP Semiconductors

Specifications of TDA5145

• Operating Temperature Classification: Commercial
• Package Type: PDIP
• Operating Supply Voltage (min): 4V
• Operating Supply Voltage (max): 18V
• Lead Free Status / RoHS Status: Not Compliant

Philips Semiconductors
Table 4 Priority of function.
Note
1. L = LOW state; H = HIGH state.
June 1994
BRAKE
Brushless DC motor drive circuit
H
H
H
H
L
L
L
L
(1)
TEST
H
H
H
H
L
L
L
L
(1)
RESET
H
H
H
H
L
L
L
L
(1)
normal
reset
test
test
brake
brake
brake
brake
FUNCTION
16
R
It is necessary to protect high current circuits and the
output stages are protected in two ways:
ELIABILITY
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 by each transistor having a thermal sensor
that is active when the transistor is switched on. The
transistors are switched off when the local temperature
becomes too high.
Product specification
TDA5145