NSD-2101 Datasheet, PDF (1/22 Pages) ams AG – Piezo Motor Driver ASIC for SQL-RV Series Reduced Voltage SQUIGGLE® RV and UTAF™ Motors

Data Sheet
NSD-2101
Piezo Motor Driver ASIC for SQL-RV Series
Reduced Voltage SQUIGGLE® RV and UTAF™ Motors
1 General Description
2 Key Features
In combination with the SQUIGGLE® RV or UTAF, the NSD-2101
provides the industry’s smallest piezo motor drive solution with direct
battery drive; no boost circuit required.
The NSD-2101 is a dedicated piezo motor driver ASIC capable of
driving a SQL-RV Series Reduced Voltage SQUIGGLE® RV motor
or UTAF motor from a single 2.3 to 5.5 VDC supply. The motor can
be controlled using a standard I²C interface.
The NSD-2101 uses proprietary control technology to dynamically
adjust motor drive frequency to maintain optimal motor performance
and minimal power consumption over wide temperature ranges and
operating conditions. A built in oscillator eliminates the need for an
external master clock.
Industry’s smallest piezo motor drive solution with direct battery
drive
- Wide input supply voltage: 2.3 to 5.5 VDC
- 1.8 x 1.8 mm 4 x 4 ball grid array or 4 x 4 mm 16-pin QFN
(minimum order quantities for QFN apply)
Low power consumption:
- Proprietary design optimizes power usage
- Hard power-down mode for lowest power consumption
- Idle mode via software for reduced power while preserving
frequency calibration
Proprietary frequency tracking controls maximizes motor
performance over a range of operating and environmental
conditions
Built-in oscillator; no external clock or oscillator required
I²C interface for direct serial interface to microprocessor
On-chip registers for storing driver instructions
3 Applications
Figure 1. NSD-2101 Functional Block Diagram
The NSD-2101 is ideal for SQL-RV-1.8 SQUIGGLE® RV
piezoelectric motor driver and UTAF piezoelectric motor driver.
VCC
C1
XPD
SDA
SCL
ADR
C2
VDD
LDO
Power Save
BandGap
V/I-
References
Startup
VDDP
Frequency
Tracking &
Control
VCO
PPTRIM
I²C Interface &
Registers
Control
1 x MLA
Squiggle
Motor Driver
2.3V - 5.5V
+
-
Connection to
SQUIGGLE® RV
Motor
P1-1
P1-2
P2-1
Connection to
UTAF motor
P1-1
P1-2
P2-1
P2-2
P2-2
Test
VSS
TM
VSSP
www.austriamicrosystems.com/NSD-2101
Revision 0.4
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