SX8750
30V DAC for piezo actuator control
WIRELESS & SENSING
Preliminary
DATASHEET
Vsupply
Vdig
100 nF
VDD
VSS
Power management
Charge
pump
VHV
100 nF
35V tank
SCL
I2C
SDA
I2C
DDAC
VAFP
Actuator
Shutdown
XSD
SX8750
Control Logic
VAFN
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
Capacitive actuator control
Piezoelectric actuator control
Key Product Features
I2C controlled 10 bit differential DAC
Wide supply range: 2.4 - 4.8 V supply voltage
Wide output range: -16 V to +30 V differential output.
No coil, no external flying capacitor
Extremely lowpower
down to 1 mA active, 1 uA shutdown
Programmable slew rate limitation
Up to 10 kS/s
Small CSP footprint: 0.8 x 1.6 mm
2
Ordering Information
Part Number
SX8750ACSTRT
Features
I2C controlled 10-bit differential DAC
XSD pin active low
I2C address 0x18
20120628
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