STMICROELECTRONICS TDE0160

TDE0160
PROXIMITY DETECTOR
..
.
..
SUPPLY VOLTAGE : +4 TO +36V
SUPPLY CURRENT : < 1.2mA
OUTPUT TRANSISTORS : I = 20mA ;
VCE (sat) ≤ 1100mV
OSCILLATOR FREQUENCY : < 1MHz
LOSS RESISTANCE : 5 TO 50kΩ.
DIP14
DESCRIPTION
The TDE0160 is designed to detect metal bodies
by the effect of Eddy currents on the HF losses of
a coil. It has two complementary open collector
outputs with peak limiting. Hysteresis is adjustable,
and an electronic switching circuit is incorporated
for disabling both outputs.
An internal zener diode maintains the supply voltage to the circuit in ”dipole” operation.
SO14
ORDERING NUMBERS : TDE0160DP (DIP14)
TDE 0160FP (SO14)
PIN CONNECTION (top view)
April 1993
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TDE0160
SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
VCC
Supply Voltage
36
V
VO*
Output Voltage*
36
V
IO (I1-I3)
Parameter
Output Current (I1-I3)
40
mA
IZ
Zener Current
40
mA
Tj
Junction Temperature
+ 150
°C
Toper
Ambient Temperature Range
– 25 to + 85
°C
Tstg
Storage Temperature Range
– 65 to + 150
°C
* Internal peak limiting to protect against transient voltage surges.
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TDE0160
ELECTRICAL CHARACTERISTICS
T amb = +25oC unless otherwise specified
Symbol
VCC
Parameter
Min.
Supply Voltage
VZ
Zener Voltage (IZ = 20mA)
ICC
Supply Current
Typ.
Max.
Unit
Pin 11
4
36
V
Pins 9-11
3
4
V
1.2
mA
Pin 11
–
Limiting (I = 0.1mA)
Pin 1 or 3
42
–
Output Transistor Saturation Voltage
(I1 or I3 = +20mA)
Pin 1 or 3
0.9
1.1
Pin 1 or 3
2
µA
110
130
mV
–
Output Transistor Leakage Current (V = +30V)
–
Switching Threshold
Rn
Negative Resistance*
(5kΩ < RH < 50kΩ, f = 100kHz, RS = 0)
–
Inherent Hysteresis (R 2 = 0)
–
Programmed Hysteresis (H < 15%)
fosc
Pin 12
90
V
V
Rn = R H
1
2
Oscillation Frequency
1
–
Switching Frequency (with matched oscillator circuit)
–
Switching Time-delay
–
Switching Response Time (Cd = 10nF ; VCC = +20V)
%
%
Rs
Rs+ RH
MHz
750
Hz
0.5 Cd (µF)
s
10
µs
* See characteristic curves
SWITCHING OPERATION
If IC exceeds ICO, where I CO =
V(ref)
Rd
the switch
cuts off the output transistors and tests the value
of current IC, with time constant 0.5 Cd.
On power up the internal start system cuts off the
output transistors until VCC reaches a value permitting normal operation of the circuit.
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TDE0160
MILD STEEL
4/8
TDE0160
TYPICAL APPLICATION DIAGRAMS
a)
b)
Ca :
Cf :
Cd :
Co :
Lo :
Rd :
RH :
Rs :
RL :
10nF
1nF
10nF
390pF
65µH to 1MHz
10kΩ
15kΩ
3kΩ
2.5kΩ
VCC : 20V
fo ≈ 1MHz
emean = 2.5mm
Φ coil : 14mm
Core COFELEC 432FP
Turns : 47
Stranded wire : 15 x 5/100
c)
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TDE0160
SO14 PACKAGE MECHANICAL DATA
mm
DIM.
MIN.
TYP.
A
a1
inch
MAX.
TYP.
1.75
0.1
MAX.
0.069
0.25
a2
0.004
0.009
1.6
0.063
b
0.35
0.46
0.014
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.020
c1
45 (typ.)
D
8.55
8.75
0.336
0.344
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
7.62
0.300
F
3.8
4.0
0.15
0.157
L
0.4
1.27
0.016
0.050
M
S
6/8
MIN.
0.68
0.027
8 (max.)
TDE0160
DIP14 PACKAGE MECHANICAL DATA
mm
DIM.
MIN.
a1
0.51
B
1.39
TYP.
inch
MAX.
MIN.
TYP.
MAX.
0.020
1.65
0.055
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
15.24
0.600
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
1.27
0.130
2.54
0.050
0.100
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TDE0160
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
 1994 SGS-THOMSON Microelectronics - All Rights Reserved
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