SX8750 Datasheet

SX8750
30V DAC for piezo actuator control
WIRELESS & SENSING
Vsupply
Vdig
VDD
Charge
pump
Power management
100 nF
VSS
SCL
VHV
VAFP
DDAC
SDA
35V tank
100 nF
I2C
I2C
DATASHEET
Preliminary
Actuator
Shutdown
Control Logic
XSD
VAFN
SX8750
General Description
Key Product Features
SX8750 is a piezo actuator driver. It operates from a 3V
supply and generates up to 30V to drive the actuator.
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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
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Capacitive actuator control
Piezoelectric actuator control
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
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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 mm2
Ordering Information
20120628
©2011-2012 Semtech Corp.
Page 1
Part Number
Features
SX8750ACSTRT
I2C controlled 10-bit differential DAC
XSD pin active low
I2C address 0x18
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