Datasheet

VDD
DRV2603
EN
Application
Processor
GND
GPIO
PWM
PWM
GND
OUT+
OUT-
2.5 V to 5.2 V
C
VDD
DC Motor
(ERM)
ERMLRA /
VDD
DRV2603
EN
Application
Processor
VDD
GPIO
PWM
PWM
GND
OUT+
OUT-
2.5 V to 5.2 V
C
VDD
Linear Vibrator
(LRA)
ERMLRA /
ERM
Or
LRA
OUT+
OUT–
100kΩ
100kΩ
470 pF
470 pF
Ch1-Ch2
(Differential)
Oscilloscope
Ch1
Ch2
DRV2603
SLOS754A –JUNE 2012–REVISED JANUARY 2014 www.ti.com
TYPICAL CHARACTERISTICS (continued)
ALTERNATE TEST SETUP
If a digital oscilloscope with digital filtering is not available, a 1
st
order, low-pass, RC filter network can be used
instead. Care must be taken not to use a filter impedance that is too low. This can interfere with the back-EMF
behavior of the actuator and corrupt the operation of the auto resonance function. A recommended circuit is
shown in Figure 8.
Figure 8. Alternate Test Setup
SYSTEM DIAGRAMS
Figure 9. System Diagram for LRA
Figure 10. System Diagram for ERM
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