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TCA305

Siemens Semiconductor
Part Number TCA305
Manufacturer Siemens Semiconductor
Description Proximity Switch
Published Apr 23, 2005
Detailed Description TCA 305 TCA 355 Proximity Switch TCA 305 TCA 355 Bipolar IC Features q q q Lower open-loop current consumption; IS <...
Datasheet PDF File TCA305 PDF File

TCA305
TCA305

Overview
TCA 305 TCA 355 Proximity Switch TCA 305 TCA 355 Bipolar IC Features q q q Lower open-loop current consumption; IS < 1 mA Lower output saturation voltage The temperature dependence of the switching distance is lower and compensation of the resonant circuit TC (temperature coefficient) is easier The sensitivity is higher, so that larger switching distances are possible and coils of a lower quality can be used The switching hysteresis remains constant as regards temperature, supply voltage and switching distance The TCA 305 even functions without external integrating capacitor.
With an external capacitor (or with RC combination) good noise immunity can be achieved The outputs are temporarily short-circuit proof (approx.
10 s to 1 min depending on package) The outputs are disabled when VS < approx.
4.
5 V and are enabled when the oscillator stabilizes (from VS min = 5 V) Higher switching frequencies can be obtained Miniature package P-DIP-14-1 P-DSO-8-1 q q q q q q q P-DSO-14-1 Type s TCA 305 A TCA 305 G TCA 355 G Ordering Code Q67000-A2291 Q67000-A2305 Q67000-A2444 Package P-DIP-14-1 P-DSO-14-1 (SMD) P-DSO-8-1 (SMD) s Not for new design Semiconductor Group 1 01.
96 TCA 305 TCA 355 TCA 305 A TCA 355 G TCA 305 G Pin Configurations (top view) The devices TCA 305 and TCA 355 contain all the functions necessary to design inductive proximity switches.
By approaching a standard metal plate to the coil, the resonant circuit is damped and the outputs are switched.
Operation Schematic: see TCA 205 The types TCA 305 and TCA 355 have been developed from the type TCA 205 and are outstanding for the following characteristics: Logic Functions Oscillator not damped damped Outputs Q H L L H Semiconductor Group 2 TCA 305 TCA 355 Block Diagram Standard Turn-ON Delay Referred to TA = 25 ˚C Semiconductor Group 3 TCA 305 TCA 355 Absolute Maximum Ratings Parameter Supply voltage Output voltage Output current Distance, hysteresis resistance Capacitances Junction tempe...


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