SGS Thomson Microelectronics TDE0160 Datasheet
.
SUPPLYVOLTAGE: +4TO+36V
.
SUPPLYCURRENT: <1.2mA
.
OUTPUTTRANSISTORS: I = 20mA;
V
.
OSCILLATORFREQUENCY : < 1MHz
.
LOSSRESISTANCE: 5 TO 50kΩ.
CE(sat
) ≤ 1100mV
TDE0160
PROXIMITYDETECTOR
DIP14
DESCRIPTION
The TDE0160 is designed to detect metal bodies
by the effect of Eddy currents on theHF lossesof
a coil. It has two complementary open collector
outputswithpeak limiting.Hysteresisis adjustable,
and an electronicswitching circuit is incorporated
for disabling both outputs.
An internal zener diodemaintains the supply voltage to the circuit in ”dipole” operation.
PIN CONNECTION (top view)
SO14
ORDERING NUMBERS : TDE0160DP (DIP14)
TDE 0160FP (SO14)
April 1993
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TDE0160
SCHEMATICDIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
V
O*
I
O(I1-I3
I
Z
T
T
oper
T
stg
* Internal peak limiting to protect againsttransient voltage surges.
SupplyVoltage 36 V
Output Voltage* 36 V
) Output Current (I1-I3)40mA
Zener Current 40 mA
JunctionTemperature + 150 °C
j
Ambient Temperature Range – 25 to + 85 °C
Storage Temperature Range – 65 to + 150 °C
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TDE0160
ELECTRICAL CHARACTERISTICS
= +25oC unlessotherwise specified
T
amb
Symbol Parameter Min. Typ. Max. Unit
V
V
I
R
f
* See characteristic curves
Supply Voltage Pin 11 4 36 V
CC
Zener Voltage (IZ= 20mA) Pins 9-11 3 4 V
Z
Supply Current Pin 11 1.2 mA
CC
– Limiting (I = 0.1mA) Pin 1 or 3 42 V
– Output Transistor SaturationVoltage Pin 1 or 3
orI3= +20mA)
(I
1
0.9 1.1 V
– Output Transistor Leakage Current (V = +30V) Pin 1 or 3 2 µA
– Switching Threshold Pin 12 90 110 130 mV
Negative Resistance*
n
(5kΩ <R
< 50kΩ, f = 100kHz, RS=0)
H
R
n=RH
– Inherent Hysteresis (R2=0) 1 2 %
– Programmed Hysteresis (H < 15%) R
Oscillation Frequency 1 MHz
osc
s
Rs+ R
H
– Switching Frequency (with matched oscillatorcircuit) 750 Hz
– Switching Time-delay 0.5 C
– Switching Response Time (C
= 10nF ; VCC= +20V) 10 µs
d
(µF) s
d
%
SWITCHING OPERATION
V
exceedsICO, whereICO=
If I
C
(ref)
R
d
the switch
cuts off the output transistors and tests the value
of current I
, withtime constant0.5 Cd.
C
On powerup the internalstart system cuts offthe
outputtransistorsuntilV
reachesavaluepermit-
CC
ting normal operationof thecircuit.
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