TDA5146T Datasheet, PDF (11/18 Pages) NXP Semiconductors – Brushless DC motor drive circuit

Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5146T
100 mF ⁺
MOSFET P
VSUP
PWMOUT
128 mH
SCHOTTKY
++
8.1 mF 100 mF
BRAKE RESET
PWM_IN
FET DRIVER
STAGE
BRAKE RESET
220 nF
18 nF
18 nF
TEST
10 nF
FG to
micro–
processor
4.7
kW
+5 V
START-UP
OSCILLATOR
ADAPTIVE
COMMUTATION
DELAY
THERMAL
PROTECTION
TIMING
ROTATION
SPEED/
DETECTOR
OUTPUT
STAGE
DIVIDE
BY 2
DIRECTION
CONTROL
COMMUTATION
LOGIC
MOTOR
TDA5146T
EMF COMPARATORS
DIR
SL01521
Figure 7. Typical Application diagram of the TDA5146T with use of the FET driver stage
1994 May 18
11