DRV2511-Q1 Datasheet, PDF (12/25 Pages) Texas Instruments – DRV2511-Q1 8-A Automotive Haptic Driver for Solenoids and Voice Coils

DRV2511-Q1
SLOS916A – JUNE 2016 – REVISED JULY 2016
8 Application and Implementation
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NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The DRV2511-Q1 device is a high-efficiency driver for inductive loads, such as solenoids and voice-coils. The
typical use of the device is on haptic applications where short, strong waveforms are desired to create a haptic
event that will be coming from the application processor.
8.2 Typical Applications
8.2.1 Single-Ended Source
To use the DRV2511-Q1 with a single-ended source, apply either a voltage divider to bias INB to 3 V, tie to GND
or use a 0.1-μF cap from INB to GND to have the device self bias. Apply the single-ended signal to the INA pin.
PVDD
AVDD
C2
BSTP
C1
App lica tion
Pro cessor
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
PWM+
R_(PU)
EN
STDBY
INTZ
FS2
FS1
FS0
IN+
LPF
IN-
GAIN
C9
R_(GAIN)
REG
C6
GND
OUT+
R1
C4
C5
R2
OUT±
C3
BSTN
Optiona l
L1
C7
M ^{Sole noid/}
Voice-Coil
L2
C8
Optiona l
Figure 5. Typical Application Schematic
8.2.1.1 Design Requirements
For most applications the following component values found in Table 3 below can be used.
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