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Part Number UZZ7000T

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DATA SHEET
Preliminary specification
2000 Sep 05
DISCRETE SEMICONDUCTORS
UZZ7000T
Trigger amplifier with two wire
current interface
M3D315
2000 Sep 05
2
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
UZZ7000T
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.
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.
PINNING
PIN
SYMBOL
DESCRIPTION
1
SA
positive differential input
2
n.c.
not connected
3
n.c.
not connected
4
VAC
current output and supply
5
GND
ground
6
n.c.
not connected
7
VP
bridge supply
8
SB
negative differential input
handbook, halfpage
4
5
1
8
Top view
MBK187
Fig.1 Simplified outline SOT96-1.
QUICK REFERENCE DATA
Notes
1. V
in
= V
SA
-
V
SB
.
2. Maximum power consumption according to power derating curve, see Fig.2.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
VAC
DC supply voltage
T
amb
=
-
40 to +60
°
C
5.5
12
19
V
T
amb
=
-
40 to +150
°
C
-
-
15
V
I
VAC(L)
DC supply and output current
V
VAC
= 12 V; V
in
> 0; note 1
-
7
-
mA
I
VAC(H)
DC supply and output current
V
VAC
= 12 V; V
in
< 0; note 1
-
14
-
mA
V
VP
DC bridge supply voltage
-
4.9
-
V
I
VP
bridge supply current capability
V
VP
> 4.7 V
-
-
-
4.3
mA
T
amb
ambient operating temperature
V
CC
= 12 V; note 2
-
40
-
+150
°
C
2000 Sep 05
3
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
UZZ7000T
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
Note
1. Maximum power consumption according to power derating curve, see Fig.2.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
VAC
DC supply voltage
not protected against incorrect polarity
T
amb
=
-
40 to +60
°
C
-
0.5
+19
V
T
amb
=
-
40 to +150
°
C
-
15
V
V
SA
maximum input voltage range
t
5 s; T
amb
= 26
±
10
°
C
-
0.5
7
V
V
SB
maximum input voltage range
t
5 s; T
amb
= 26
±
10
°
C
-
0.5
7
V
P
tot
total power dissipation
note 1
-
320
mW
T
amb
ambient operating temperature
V
CC
= 12 V; note 1
-
40
+
150
°
C
T
stg
storage temperature
-
40
+150
°
C
handbook, halfpage
0
50
100
200
400
300
100
0
200
MGT542
150
Tamb (
°
C)
Ptot
(mW)
Fig.2 Power derating curve.
handbook, halfpage
-
40
10
6
8
4
2
0
160
MGT543
40
80
120
Tamb (
°
C)
Vhys
(mV)
Fig.3 Hysteresis voltage as a function of temperature.
2000 Sep 05
4
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
UZZ7000T
CHARACTERISTICS
T
amb
= 26
°
C; V
VAC
= 12 V; unless otherwise specified.
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.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply conditions
I
VAC(L)
DC supply current
T
amb
±
10
°
C
5.6
7
8.4
mA
I
VAC(H)
DC supply current
T
amb
±
10
°
C
11.2
14
16.8
mA
V
VAC
DC supply voltage
T
amb
=
-
40 to +150
°
C
5.5
12
15
V
Signal input characteristics
f
rm
input frequency range
0
-
25000
Hz
V
SA
maximum input voltage range
-
0.5
-
7
V
operating input voltage range
2.4
-
2.6
V
V
SB
maximum input voltage range
-
0.5
-
7
V
operating input voltage range
2.4
-
2.6
V
V
OFF
input offset voltage
T
amb
±
10
°
C
-
2.1
-
2.1
mV
I
BIAS
input bias current
V
SA
- V
SB
= 0
0.14
0.5
1.6
µ
A
I
OFF
input offset current
V
SA
- V
SB
= 0
-
75
-
75
nA
V
HYS
input hysteresis voltage
at T
amb
; notes 1 and 2
5.4
6
6.9
mV
Bridge supply output characteristics
V
VP
DC bridge supply voltage
4.7
4.9
5
V
I
VP
DC bridge supply current
-
-
-
4.3
mA
Environmental conditions
ESD protection of output pins VAC
and GND
compliance to
IEC 0801-2 (IV); note 3
2
-
-
kV
ESD protection of sensor interface
pins SA, SB and VP
compliance to
IEC 0801-2 (IV); note 4
0.3
-
-
kV
2000 Sep 05
5
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
UZZ7000T
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.
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
MLD403
VP
SA
VAC
7 mA
7 mA
GND
SB
UZZ7000
Fig.4 Block diagram.
2000 Sep 05
6
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
UZZ7000T
PACKAGE OUTLINE
UNIT
A
max.
A
1
A
2
A
3
b
p
c
D
(1)
E
(2)
(1)
e
H
E
L
L
p
Q
Z
y
w
v
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
mm
inches
1.75
0.25
0.10
1.45
1.25
0.25
0.49
0.36
0.25
0.19
5.0
4.8
4.0
3.8
1.27
6.2
5.8
1.05
0.7
0.6
0.7
0.3
8
0
o
o
0.25
0.1
0.25
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
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.
1.0
0.4
SOT96-1
X
w
M
A
A
1
A
2
b
p
D
H
E
L
p
Q
detail X
E
Z
e
c
L
v
M
A
(A )
3
A
4
5
pin 1 index
1
8
y
076E03
MS-012
0.069
0.010
0.004
0.057
0.049
0.01
0.019
0.014
0.0100
0.0075
0.20
0.19
0.16
0.15
0.050
0.244
0.228
0.028
0.024
0.028
0.012
0.01
0.01
0.041
0.004
0.039
0.016
0
2.5
5 mm
scale
SO8: plastic small outline package; 8 leads; body width 3.9 mm
SOT96-1
97-05-22
99-12-27
2000 Sep 05
7
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
UZZ7000T
DATA SHEET STATUS
Note
1. Please consult the most recently issued data sheet before initiating or completing a design.
DATA SHEET STATUS
PRODUCT
STATUS
DEFINITIONS
(1)
Objective specification
Development
This data sheet contains the design target or goal specifications for
product development. Specification may change in any manner without
notice.
Preliminary specification
Qualification
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.
Product specification
Production
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.
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.
© Philips Electronics N.V.
SCA
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.
Internet: http://www.semiconductors.philips.com
2000
70
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Printed in The Netherlands
613520/01/pp
8
Date of release:
2000 Sep 05
Document order number:
9397 750 07266