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| 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 50k. 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. PIN CONNECTION (top view) SO14 ORDERING NUMBERS : TDE0160DP (DIP14) TDE 0160FP (SO14) April 1993 1/8 TDE0160 SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol VCC VO* IO (I1-I3) IZ Tj Toper Tstg Supply Voltage Output Voltage* Output Current (I1-I3) Zener Current Junction Temperature Ambient Temperature Range Storage Temperature Range Parameter Value 36 36 40 40 + 150 - 25 to + 85 - 65 to + 150 Unit V V mA mA C C C * Internal peak limiting to protect against transient voltage surges. 2/8 TDE0160 ELECTRICAL CHARACTERISTICS T amb = +25oC unless otherwise specified Symbol VCC VZ ICC - - - - Rn - - fosc - - - Supply Voltage Zener Voltage (IZ = 20mA) Supply Current Limiting (I = 0.1mA) Output Transistor Saturation Voltage (I1 or I3 = +20mA) Output Transistor Leakage Current (V = +30V) Switching Threshold Negative Resistance* (5k < RH < 50k, f = 100kHz, RS = 0) Inherent Hysteresis (R 2 = 0) Programmed Hysteresis (H < 15%) Oscillation Frequency Switching Frequency (with matched oscillator circuit) Switching Time-delay Switching Response Time (Cd = 10nF ; VCC = +20V) 750 0.5 Cd (F) 10 Parameter Pin 11 Pins 9-11 Pin 11 Pin 1 or 3 Pin 1 or 3 Pin 1 or 3 Pin 12 90 110 Rn = R H 1 Rs Rs+ RH 1 2 % % MHz Hz s s 42 0.9 1.1 2 130 Min. 4 3 Typ. Max. 36 4 1.2 Unit V V mA V V A mV * 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. 3/8 TDE0160 MILD STEEL 4/8 TDE0160 TYPICAL APPLICATION DIAGRAMS a) b) Ca : Cf : Cd : Co : Lo : Rd : RH : Rs : RL : 10nF 1nF 10nF 390pF 65H to 1MHz 10k 15k 3k 2.5k VCC : 20V fo 1MHz emean = 2.5mm coil : 14mm Core COFELEC 432FP Turns : 47 Stranded wire : 15 x 5/100 c) 5/8 TDE0160 SO14 PACKAGE MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 3.8 0.4 8.55 5.8 1.27 7.62 4.0 1.27 0.68 8 (max.) 0.15 0.016 8.75 6.2 0.35 0.19 0.5 45 (typ.) 0.336 0.228 0.050 0.300 0.157 0.050 0.027 0.344 0.244 0.1 mm TYP. MAX. 1.75 0.25 1.6 0.46 0.25 0.014 0.007 0.020 0.004 MIN. inch TYP. MAX. 0.069 0.009 0.063 0.018 0.010 6/8 TDE0160 DIP14 PACKAGE MECHANICAL DATA DIM. MIN. a1 B b b1 D E e e3 F I L Z 1.27 3.3 2.54 0.050 8.5 2.54 15.24 7.1 5.1 0.130 0.100 0.51 1.39 0.5 0.25 20 0.335 0.100 0.600 0.280 0.201 1.65 mm TYP. MAX. MIN. 0.020 0.055 0.020 0.010 0.787 0.065 inch TYP. MAX. 7/8 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. (c) 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A. 8/8 |
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