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DISCRETE SEMICONDUCTORS
DATA SHEET
M3D315
UZZ7000T Trigger amplifier with two wire current interface
Preliminary specification 2000 Sep 05
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
FEATURES * Differential input trigger amplifier * Designed for signal conditioning of magnetoresistive sensor bridges * Two wire 7 and 14 mA current interface * Stabilized voltage supply source for external sensor bridges * Comparator with temperature controlled hysteresis * Wide temperature range * Max. 19 V supply. DESCRIPTION The UZZ7000T is a differential input amplifier circuit with a trigger mechanism for application with magnetoresistive sensor bridges. It is equipped with a two wire current interface. The polarity of an input voltage difference triggers the circuit supply current between 7 and 14 mA.
1 4
MBK187
UZZ7000T
PINNING PIN 1 2 3 4 5 6 7 8 SYMBOL SA n.c. n.c. VAC GND n.c. VP SB DESCRIPTION positive differential input not connected not connected current output and supply ground not connected bridge supply negative differential input
handbook, halfpage
8
5
The device also includes a voltage regulator for supply to an external sensor bridge. An on-chip temperature sensor adapts the comparator hysteresis to the temperature dependent sensitivity of typical magnetoresistive sensors, such as the Philips KMZ family types. QUICK REFERENCE DATA SYMBOL VVAC IVAC(L) IVAC(H) VVP IVP Tamb Notes 1. Vin = VSA - VSB. 2. Maximum power consumption according to power derating curve, see Fig.2. PARAMETER DC supply voltage DC supply and output current DC supply and output current DC bridge supply voltage bridge supply current capability ambient operating temperature VVP > 4.7 V VCC = 12 V; note 2 CONDITIONS Tamb = -40 to +60 C Tamb = -40 to +150 C -
Top view
Fig.1 Simplified outline SOT96-1.
MIN. 5.5 - 7
TYP. 12
MAX. 19 15 - - - -4.3 +150
UNIT V V mA mA V mA C
VVAC = 12 V; Vin > 0; note 1 - VVAC = 12 V; Vin < 0; note 1 - - - -40
14 4.9 - -
2000 Sep 05
2
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL VVAC PARAMETER DC supply voltage CONDITIONS not protected against incorrect polarity Tamb = -40 to +60 C Tamb = -40 to +150 C VSA VSB Ptot Tamb Tstg Note 1. Maximum power consumption according to power derating curve, see Fig.2. maximum input voltage range maximum input voltage range total power dissipation ambient operating temperature storage temperature t 5 s; Tamb = 26 10 C t 5 s; Tamb = 26 10 C note 1 VCC = 12 V; note 1 -0.5 - -0.5 -0.5 - -40 -40 MIN.
UZZ7000T
MAX. +19 15 7 7 320 +150 +150
UNIT V V V V mW C C
MGT542
handbook, halfpage
400
handbook, halfpage
10
MGT543
Ptot (mW) 300
Vhys (mV) 8
200
6
100
4
0
0
50
100
150 200 Tamb (C)
2 -40
0
40
80
120 160 Tamb (C)
Fig.2 Power derating curve.
Fig.3 Hysteresis voltage as a function of temperature.
2000 Sep 05
3
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
CHARACTERISTICS Tamb = 26 C; VVAC = 12 V; unless otherwise specified. SYMBOL Supply conditions IVAC(L) IVAC(H) VVAC frm VSA VSB VOFF IBIAS IOFF VHYS VVP IVP DC supply current DC supply current DC supply voltage Tamb 10 C Tamb 10 C Tamb = -40 to +150 C 5.6 11.2 5.5 7 14 12 - - - - - - 0.5 - 6 PARAMETER CONDITIONS MIN. TYP.
UZZ7000T
MAX.
UNIT
8.4 16.8 15
mA mA V
Signal input characteristics input frequency range maximum input voltage range operating input voltage range maximum input voltage range operating input voltage range input offset voltage input bias current input offset current input hysteresis voltage Tamb 10 C VSA - VSB = 0 VSA - VSB = 0 at Tamb; notes 1 and 2 0 -0.5 2.4 -0.5 2.4 -2.1 0.14 -75 5.4 25000 7 2.6 7 2.6 2.1 1.6 75 6.9 Hz V V V V mV A nA mV
Bridge supply output characteristics DC bridge supply voltage DC bridge supply current 4.7 - compliance to IEC 0801-2 (IV); note 3 compliance to IEC 0801-2 (IV); note 4 2 0.3 4.9 - - - 5 -4.3 - - V mA
Environmental conditions ESD protection of output pins VAC and GND ESD protection of sensor interface pins SA, SB and VP Notes 1. Input hysteresis voltage is the difference between higher and lower switching point referred to input. 2. Temperature dependence of voltage hysteresis; see Fig.3. 3. Output pins are designed for electrostatic sensitivity with field strengths up to 2 kV according to Human Body Model (HBM), MIL-STD-883, method 3015. 4. Differential input pins are designed for electrostatic sensitivity with field strengths up to 0.3 kV according to Human Body Model (HBM), MIL-STD-883, method 3015. kV kV
2000 Sep 05
4
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
FUNCTIONAL DESCRIPTION The UZZ7000 is a differential input trigger amplifier with a two wire interface and sensor supply regulator. It is designed for application with magnetoresistive sensor bridges. The block diagram is shown in Fig.4 The circuitry includes a voltage regulator for supply to an external sensor bridge.
UZZ7000T
An on-chip temperature sensor adapts the comparator hysteresis to the temperature dependent sensitivity of a typical magnetoresistive sensor from the Philips MR-Sensor KMZ families. The UZZ7000T device and the connected sensor bridge are supplied from a two wire current interface. The digital output is directly related to the differential voltage input between pins SA and SB which switches the constant current source between 7 and 14 mA.
handbook, full pagewidth
VP
7 mA
UZZ7000
VAC
7 mA SA SB GND
MLD403
Fig.4 Block diagram.
2000 Sep 05
5
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
PACKAGE OUTLINE SO8: plastic small outline package; 8 leads; body width 3.9 mm
UZZ7000T
SOT96-1
D
E
A X
c y HE vMA
Z 8 5
Q A2 A1 pin 1 index Lp 1 e bp 4 wM L detail X (A 3) A
0
2.5 scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 1.75 A1 0.25 0.10 A2 1.45 1.25 A3 0.25 0.01 bp 0.49 0.36 c 0.25 0.19 D (1) 5.0 4.8 0.20 0.19 E (2) 4.0 3.8 0.16 0.15 e 1.27 HE 6.2 5.8 L 1.05 Lp 1.0 0.4 Q 0.7 0.6 v 0.25 0.01 w 0.25 0.01 y 0.1 Z (1) 0.7 0.3
0.010 0.057 0.069 0.004 0.049
0.019 0.0100 0.014 0.0075
0.244 0.039 0.028 0.050 0.041 0.228 0.016 0.024
0.028 0.004 0.012
8 0o
o
Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT96-1 REFERENCES IEC 076E03 JEDEC MS-012 EIAJ EUROPEAN PROJECTION
ISSUE DATE 97-05-22 99-12-27
2000 Sep 05
6
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
DATA SHEET STATUS DATA SHEET STATUS Objective specification PRODUCT STATUS Development DEFINITIONS (1)
UZZ7000T
This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product.
Preliminary specification
Qualification
Product specification
Production
Note 1. Please consult the most recently issued data sheet before initiating or completing a design. DEFINITIONS Short-form specification The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. DISCLAIMERS Life support applications These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
2000 Sep 05
7
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For all other countries apply to: Philips Semiconductors, Marketing Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 (c) Philips Electronics N.V. 2000
Internet: http://www.semiconductors.philips.com
SCA 70
All rights are 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.
Printed in The Netherlands
613520/01/pp8
Date of release: 2000
Sep 05
Document order number:
9397 750 07266

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