NSD-1202-ASST austriamicrosystems, NSD-1202-ASST Datasheet

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NSD-1202-ASST

Manufacturer Part Number
NSD-1202-ASST
Description
IC DRIVER MOTOR SQUIGGLE 16-QFN
Manufacturer
austriamicrosystems
Series
SQUIGGLE®r
Datasheet

Specifications of NSD-1202-ASST

Applications
Piezo Motor Driver
Number Of Outputs
2
Current - Output
25mA
Voltage - Load
24 V ~ 40 V
Voltage - Supply
2.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-VQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
NSD-1202-ASSTTR
www.austriamicrosystems.com/NSD-1202
N S D - 1 2 0 2
D u a l P i e z o M o t o r D r i v e r I C f o r S Q L S e r i e s
S Q U I G G L E M o t o r s
1 General Description
The NSD-1202 is a dedicated piezo motor driver ASIC capable of
driving two SQL Series SQUIGGLE motors from a single 2.8 to 5.5
VDC supply.
The two motors can be controlled independently using a standard
I²C interface.
An on-chip DC-DC step-up converter generates the high supply
voltage (24 to 40 VDC) required by the piezoelectric elements of the
SQUIGGLE motor.
Four half bridge drivers create pairs of phase-shifted square waves
with ultrasonic frequency as required to drive SQL Series
SQUIGGLE motors.
Figure 1. NSD-1202 Functional Block Diagram
D a t a S h e e t
VDD (2.8-5.5V)
VSS
ADR
SDA
XPD
SCL
CLK
VIN (2.8-5.5V)
I²C Interface
reference
LOGIC
Voltage
C1
22µF
NSD-1202
controller
Step-up
4.7µH
L1
Revision 0.2
Level-
shifter
Level-
shifter
Level-
shifter
Level-
shifter
Registers
LX
2 Key Features
This part supersedes and is backward-compatible with the NSD-
1102.
3 Applications
The NSD-1202 is ideal for SQUIGGLE piezoelectric motor driver.
Wide Input Supply Voltage Range: 2.8 to 5.5VDC
Step-up converter to generate programmable high-voltage
power supply (24 to 40V)
Minimum 65% efficiency (at VDD=2.8V, I
freq=2MHz)
4x output driver with defined rise/fall time
I²C interface
On chip registers store driver instructions
Power-down mode for minimal power consumption in stand-by
Small 4x4mm 16-Pin QFN Package
D1
VDDH (programmable 24V...40V)
TRIM
1
1
1
1
VDDH
C2
VSSP
DRV2P1
DRV2P2
DRV1P1
DRV1P2
1µF
OUT
=25mA,
1 - 13

Related parts for NSD-1202-ASST

NSD-1202-ASST Summary of contents

Page 1

... General Description The NSD-1202 is a dedicated piezo motor driver ASIC capable of driving two SQL Series SQUIGGLE motors from a single 2.8 to 5.5 VDC supply. The two motors can be controlled independently using a standard I²C interface. An on-chip DC-DC step-up converter generates the high supply voltage ( VDC) required by the piezoelectric elements of the SQUIGGLE motor ...

Page 2

... DRV1P2 13 DRV1P1 14 DRV2P2 15 DRV2P1 16 1. SDA (Data IO) and SCL (Data clock) constitute an I²C interface. Both have open drain outputs. www.austriamicrosystems.com/NSD-1202 ADR 2 11 NSD-1202 VDD Pin Type Character High Voltage Supply Supply pad Power Slave address input Digital input Input Power Output to Inductor ...

Page 3

... Voltage at CLK, SDA, SCL, XPD LV Iscr Input current (latchup immunity) ESD Electrostatic discharge Ptot Total power dissipation Rthja Thermal resistance QFN16 4x4mm Tstrg Storage temperature Tbody Soldering temperature Humidity non-condensing www.austriamicrosystems.com/NSD-1202 Electrical Characteristics on page 4 Min Typ Max Units -0 -0 VDDH -0.6 V ...

Page 4

... Stand-by current consumption Operating current consumption Output Voltage (VDDH) Output Voltage (VDDH) steps Output Voltage accuracy Hysteresis Output current Efficiency www.austriamicrosystems.com/NSD-1202 Conditions VDD rise time is between 10µs and 100ms High voltage supply GND reference for step up converter GND reference potential Low voltage pads Conditions XPD=LOW, temp=27º ...

Page 5

... High level output voltage Low level output voltage OL Capacitive load: SDA, SCL C L External pull-up resistor: SDA, SCL R PU I²C write frequency SCL www.austriamicrosystems.com/NSD-1202 Conditions Min 1.2 VSS Conditions Min 1.2 VSS V Depending on external pull-up VDD resistor -0.5 @3mA output current As defined by I² ...

Page 6

... I²C The I²C interface is used to control the NSD-1202 and set the value of several registers. These registers will define the output voltage (by changing the resistive feedback divider) as well as the direction and duration of the output driver signals. The period count. duty cycle (or pulse width) and pulse count registers can be set separately for each motor ...

Page 7

... The same applies when the motor is off. Symbol Parameter Rise/fall time Load capacitance C LOAD Switching frequency Switching frequency step Switching frequency duty cycle Duty cycle accuracy Phase shift Phase shift error Master clock frequency (CLK) www.austriamicrosystems.com/NSD-1202 MSB 00h 01h h d 02h 03h ...

Page 8

... Varying the output voltage can be used to vary the speed of the motor. However, if two motors are being driven, both motors use a common output voltage and therefore one setting applies to both motors. To control the speed of two motors independently, use the Duty Cycle Register. www.austriamicrosystems.com/NSD-1202 Typ 180 ...

Page 9

... In the following table an example for 20MHz clock input and 150kHz driver frequency is given. The value of the duty cycle register should not exceed 50% of the period counter value. Duty Cycle Register 0000 0000 0000 0001 0000 1101 0001 1011 0010 1000 0011 0101 0100 0010 0100 0011 www.austriamicrosystems.com/NSD-1202 Min Typ 49.6/50.4 0.8 9.8 20.3 30.1 39.8 49.6 50.4 Revision 0 ...

Page 10

... NSD-1202 Data Sheet - Application Information The NSD-1202 is designed to drive two SQL-1.8 SQUIGGLE motors. Recommended external components are as follows: Component Description C1 22µF Cap 6.3V C2 1µF Cap 50V L1 4.7µH Inductance D1 Diode New Scale offers a convenient MC-33DB evaluation board which includes these components, along with input and motor connectors, to take full advantage of the NSD-1202 ASIC ...

Page 11

... All dimensions are in millimeters, angle is in degrees. 3. Dimension b applies to metallized terminal and is measured between 0.25mm and 0.30mm from terminal tip. Dimension L1 represents terminal full back from package edge up to 0.1mm is acceptable. 4. Coplanarity applies to the exposed heat slug as well as the terminal. 5. Radius on terminal is optional. www.austriamicrosystems.com/NSD-1202 ...

Page 12

... Dual Piezo Motor Driver IC Note: All products are RoHS compliant and Pb-free. Buy our products or get free samples online at ICdirect: For further information and requests, please contact us or find your local distributor at http://www.austriamicrosystems.com/distributor www.austriamicrosystems.com/NSD-1202 Table 7. Description Delivery Form Tape & Reel http://www ...

Page 13

... Tel: +43 (0) 3136 500 0 Fax: +43 (0) 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact Contact Information New Scale Technologies, Inc. 121 Victor Heights Parkway Victor, NY 14564 Tel: +1 585 924 4450 Fax: +1 585 924 4468 sales@newscaletech.com www.newscaletech.com www.austriamicrosystems.com/NSD-1202 Revision 0 ...

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