User manual

Motor Control Shield with BTN8982TA
for Arduino
Users Manual 5 V0.9, 2015-03
 Brushed DC Motor Control up to 250 W continuous load
1
o 8-18 V nominal input voltage (max. 6 – 40 V)
2
o Average motor current 30 A restricted due to the limited power dissipation of the PCB
3
(BTN8982TA current limitation @ 55 A min.)
4
 Drives either one brushed bi-directional DC motor or two uni-directional DC motors.
5
 Capable of high frequency PWM, e.g. 30 kHz
6
 Adjustable slew rates for optimized EMI by changing external resistor
7
 Driver circuit with logic level inputs
8
 Status flag diagnosis with current sense capability
9
 Protection e.g. against overtemperature and overcurrent
10
 Reverse polarity protection with IPD90P04P4L
11
 Further comments:
12
o To keep the costs as low as possible the pin headers and connectors are not attached to the
13
shield. The user can solder them by himself. The pin headers are not expensive, but the
14
through whole soldering is a not insignificant cost factor.
15
o The size of the DC-link capacity (C4 in the schematics and C10 in the application circuit.)
16
with 1000µF is for most applications oversized. It is a worst case scenario if a 500W motor is
17
connected to the shield. The capacity can be replaced by smaller capacities when using less
18
powerful motors. Equation 10 in the BTN8960 /62 /80 /82 High Current PN Half Bridge
19
NovalithIC
TM
(Rev. 0.3, 2014-09-11) Application Note should be used to calculate the value
20
of the DC-link capacity.
21
22
Figure 2 Motor Control Shield driving an engine cooling fan
23