UZZ9000/T3 [NXP]
IC SPECIALTY ANALOG CIRCUIT, PDSO24, SO-24, Analog IC:Other;
| 型号： | UZZ9000/T3 |
| 厂家： | 
NXP |
| 描述： | IC SPECIALTY ANALOG CIRCUIT, PDSO24, SO-24, Analog IC:Other 光电二极管 |
| 文件： | 总4页 (文件大小：415K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Magnetoresistive
angle sensors
Covering all the angles in
automotive systems
Philips Semiconductors magnetoresistive sensor technology
is the superior choice for automotive measurement systems.
Features such as lack of wear, long term stability and
direct measurement combine to deliver highly accurate
and robust sensors. With stand-alone sensors, companion
signal conditioning ICs and complete single-package sensing
solutions our range of cost-effective angle sensors covers all
your application needs.
Semiconductors
Offering many technical benefits over other technologies, Philips
magnetoresistive angle sensors provide car manufacturers with a more
reliable and accurate solution for automotive angle measurement – reducing
the risk of mechanical breakdowns and improving overall vehicle safety.
This is an increasingly important area within automotive electronics as the
industry moves closer to incorporating advanced X-by-wire networks and
control systems, such as FlexRay, that rely on accurate measurement data.
Magnetoresistive (MR) sensors by their nature are ideal for the severe
environmental conditions presented by automotive systems. Based
on the same, proven magnetoresistive technology used in automotive
applications such as anti-lock braking systems, MR sensors provide direct
angle measurement with long-term stability and wear-free operation.
Key benefits
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• Contactless angle measurement up to 180°
• Measurement independent of magnetic drift caused by life time
and temperature changes
• Operation independent of mechanical tolerances and shifts of
the magnet caused by thermal stress
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• High temperature range
• Automotive qualification
• Highly flexible solutions that measure any automotive angle effectively
• Fully stable operation over long life-cycle
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Key applications
• Electronic throttle control (ETC)
• Variable valve control (VVC)
• Pedal and wiper positioning
• Active suspension
• Automatic headlight adjustment
• Electronic steering
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• Seat positioning
Magnetoresistive angle sensors
KMZ41 / 43 and UZZ900x
Standalone MR sensor bridges for angular measurement
Philips’ KMZ41 and KMZ43 sensor bridges contain eight MR resistor networks etched into the same substrate, connected as two individual
Wheatstone bridges aligned at 45°. Possessing different sensitivities, our KMZ41 and KMZ43 angle sensors are designed to work with the UZZ900x
conditioning ICs. Ensuring maximum flexibility, Philips offers MR sensor bridges both as standalone devices in SO8 package and as bare die for
space-critical solutions.
KMZ41, KMZ43T and X3T-KMZ043 (bare die) key specifications
KMZ41
KMZ43T
X3T-KMZ043
Operating voltage
Angle range
max. 9V
180 degree
sin/cos
max. 9V
180 degree
sin/cos
Output signal
Sensitivity
typ. 2.8 mV/V
100 kA/m
typ. 2.35 mV/V
25 kA/m
Saturation field strength
Operating temperature range
-40 ....+150 °C
-40 ....+150 °C
KMZ43T chip layout, showing the two separate bridges
Companion signal conditioning ICs for sensor bridges
Designed and developed specifically to complement Philips’ KMZ family of angle sensors, the UZZ9000 series provides optimized single-chip signal
conditioning solutions with either analog or 13-bit SPI interfacing. Incorporating all conditioning electronics they also offer an adjustable measurement
range and zero point to maximize design flexibility.
UZZ9000 / UZZ9001 key specifications
KMZ41
UZZ9000
Item
UZZ9000
5V +/- 10 %
UZZ9001
5V +/- 10 %
+ V
O1
ADC1
ADC2
Supply voltage
14
14
- V
O1
ADJUSTMENT
OF
OUTPUT CURVE
CHARACTERISTIC
BUFFER
13
13
Maximum angle range
Angle range variation
Zero point offset cancellation
Output type
0° - 180°
0° - 180°
ALGORITHM
DAC
V
out
+ V
O2
- V
O2
0° - 30 °... 0° - 180° in steps of 10°
+/- 5° in steps of 0.5°
ratiometric analog voltage
< 0.1°
fixed to 0° - 180°
fixed to 0.0°
BUFFER
RC-OSCILLATOR &
CLOCK GENERATOR
TEST AND TRIM
MODE
digital (SPI) with 13-Bit
< 0.05°
RESET
Resolution of measurements
Accuracy (ideal intput signals)
Package
bra159
Two Chip solution
< +/- 0.4°
< +/- 0.30°
SO24 (SOT137-1)
-40°C to +150°C
SO24 (SOT137-1)
-40°C to +150°C
Temperature range
Magnetoresistive angle sensors
KMA200
Single package angle sensor system with on-chip diagnostics
The KMA200 is a pre-aligned, ready-to-use sensor system. It consists
of a magnetoresistive element containing two independent MR sensor
bridges and a signal conditioning IC in a special multi-chip package.
Over voltage and reversed polarity protection are both incorporated
into the device, as is temperature supervision.
KMA200 key features
• Programmable angle range (max. 180°)
• 4 analog and 2 digital output modes selectable
• 5 V supply
• Ratiometric analog output
• Reverse supply voltage protection up to 16.5 V
• Over voltage protection up to 26.5 V
• Over voltage maximum 32 V (for 400 ms)
• EEPROM (user programmable)
Magneto Resistive Element
Angle Sensor Chip
Thin Film Technology
• On-line diagnosis of all main functional blocks
• Ambient temperature range – 40 °C to + 160 °C
KMA200 key specifications
Signal Processing
Max. deviation from ideal line
at one point calibration
1.65 degree
Linearity error step of 1 degree
Repeatability
0.1 degree
0.1 degree
Resolution of analog output signal
Temperature drift of analog output
Measurement update rate
0.04 degree
0.64°max @ -25...+125°C
4 kHz
The KMA200 sensor system
A self-monitoring function supervises the blocks of the sensor system
during normal operation, automatically detecting failures in any part
of the sensor system and quickly indicats such a diagnosis error to the
connected higher-level system. User programmability is achieved via
an SPI with all data stored permanently in on-chip EEPROM, allowing
specific adjustments of the angular range, zero point and clamping level
to be set. Additionally, the device can be programmed to work either in
analog or digital (SPI) output modes.
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Analog output voltage with positive slope
MR SENSOR
SIGNAL CONDITIONING ELECTRONICS
The Magnetoresistive principle
INPUT
STAGE
OUTPUT
STAGE
µC
MR sensors use magnetic fields to conduct measurement information
between physical value and sensor. This contactless principle allows
isolation of all rotating components, making the entire sensing system
robust with respect to pollution and mechanical degradation. Another
characteristic is that MR sensors evaluate the direction of the magnetic
field and not the field strength: the field strength is not important as
long as it is above a certain operational minimum.
EEPROM/
RAM
TEMPERATURE
SENSOR
OSCILLATOR
ONLINE DIAGNOSIS
bra160
KMA200 single package solution
As a result, MR-based systems using the KMZ41 or KMZ43T can
tolerate variations in field strength caused by ageing, mechanical
fluctuations or temperature sensitivity of the magnet.
Magnetoresistive angle sensors
Covering all the angles in automotive systems
www.semiconductors.philips.com
Portfolio overview
Type
Product
Package Supply voltage (V) Angle range
Output value
Output type
Operating
temperatures °C
KMZ41
sensor
sensor
sensor
SO8
SO8
5.0 ... 9
5.0 ... 9
180°
180°
180°
180°
180°
180°
80 mV peak-peak
68 mV peak-peak
68 mV peak-peak
0.5 ... 4.5 V
sine / cosine
sine / cosine
sine / cosine
analog linear
digital
-40 ... 150
-40 ... 150
-40 ... 150
-40 ... 150
-40 ... 150
-40 ... 160
KMZ43
X3T-KMZ043
Die
5.0 ... 9
UZZ9000
UZZ9001
KMA200
signal conditioning unit
signal conditioning unit
sensor system
SO24
SO24
SOT637
4.5 ... 5.5
4.5 ... 5.5
4.5 ... 5.5
0.5 ... 4.5 V
0.5 ... 4.5 V
4 analog linear /
2 digital
Philips Semiconductors
Philips Semiconductors is a worldwide company with over 100 sales offices
in more than 50 countries. For a complete up-to-date list of our sales offices
please e-mail sales.addresses@www.semiconductors.philips.com.
A complete list will be sent to you automatically.
You can also visit our website http://www.semiconductors.philips.com/sales.
© Koninklijke Philips Electronics N.V. 2004
All rights reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner.The information presented in this document
does not form part of any quotation or contract, is believed to be accurate and reliable
and may be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under
patent- or other industrial or intellectual property rights.
Date of release: October 2004
Document order number: 9397 750 14132
Published inThe Netherlands
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