SX8750EVKA Datasheet, PDF (1/1 Pages) Semtech Corporation – 30V DAC for piezo actuator control

WIRELESS & SENSING
SX8750
30V DAC for piezo actuator control
Preliminary
DATASHEET
Vsupply
Vdig
100 nF
I2C
Shutdown
VDD
VSS
SCL
SDA
Power management
I2C
XSD
Control Logic
SX8750
Charge
pump
DDAC
VHV
VAFP
VAFN
100 nF
35V tank
Actuator
General Description
SX8750 is a piezo actuator driver. It operates from a 3V
supply and generates up to 30V to drive the actuator.
No coil or external flying capacitor is used to increase the
voltage, minimizing the number of externals and the size of
the solution.
The differential output drives the actuator with positive or
negative voltage.
Applications
Š Capacitive actuator control
Š Piezoelectric actuator control
Key Product Features
Š I2C controlled 10 bit differential DAC
Š Wide supply range: 2.4 - 4.8 V supply voltage
Š Wide output range: -16 V to +30 V differential output.
Š No coil, no external flying capacitor
Š Extremely lowpower
Š down to 1 mA active, 1 uA shutdown
Š Programmable slew rate limitation
Š Up to 10 kS/s
Š Small CSP footprint: 0.8 x 1.6 mm²
Ordering Information
Part Number
SX8750ACSTRT
Features
I2C controlled 10-bit differential DAC
XSD pin active low
I2C address 0x18
20120628
©2011-2012 Semtech Corp.
Page 1
www.semtech.com