tca505b Infineon Technologies Corporation, tca505b Datasheet
tca505b
Available stocks
Related parts for tca505b
tca505b Summary of contents
Page 1
IC for Inductive Proximity Switches with Short-Circuit Protection Pb-free lead plating; RoHS compliant Features Wide supply voltage of 3.1 to 4.5 V and Low current consumption of less than 0.8 mA Integrated output stage for up ...
Page 2
Pin Configurations (top view) Pin Definitions and Functions Pin Symbol Function 1 LC Oscillator 2 Distance N.C. Not connected 4 Integrating capacitance Hysteresis Short-circuit detector 7 GND Ground 8 Q4 ...
Page 3
Functional Description and Application Operation Schematic Block Diagram Semiconductor Group 3 TCA 505 BG ...
Page 4
Functional Description This circuit is used to design inductive proximity switches. The resonant circuit of the LC oscillator is implemented with an open half-pot ferrite and a capacitor in parallel (pin LC metallic target is moved closer to ...
Page 5
Circuit Diagram (simplified) Semiconductor Group 5 TCA 505 BG ...
Page 6
Pin Functions Pin 1; LC The resonant circuit of the proximity switch is connected between LC and ground. Pin resistor between this pin and ground sets the current in the oscillator circuit. The greater the value ...
Page 7
Both the internal output stages and externally connected output stages can be protected against sustained short-circuits or overload. A limiting of the output current is an externally connected output stage during the turn-off delay must be ensured. Normally the current ...
Page 8
Pin 14; B This pin serves for limiting the base voltage of the internal output-stage transistors. If this pin is connected to V for example possible to set a constant output current (I REF external resistor) that is ...
Page 9
Absolute Maximum Ratings = – 110 ˚ Parameter Supply voltage Output voltages B open B connected Output currents Voltage Current on V REF Voltage on SC Current from R Di Current to R ...
Page 10
Characteristics – 110 ˚ Parameter Power Supply ( Current consumption Normal mode ( OFF) Two-wire operation OFF 4 V ...
Page 11
Characteristics (cont’ – 110 ˚ Parameter Two-Wire Regulator ( Turn-ON threshold (outputs active Turn-ON threshold (outputs disabled Hysteresis V – V ...
Page 12
Diagrams Temperature Response of Switching Point Resistor R is set in each case so that the TCA 505 B just switches from D2 to D1. In this way LC the TCA 505 B, together with a suitably dimensioned resonant circuit, ...
Page 13
Diagrams Reference Voltage versus Junction Temperature T j Semiconductor Group Current Consumption versus Junction Temperature T Switching Amplitude versus Frequency f 13 TCA 505 BG j ...
Page 14
Test Circuit 1 Test Circuit 2 Semiconductor Group 14 TCA 505 BG ...
Page 15
For explanation see under "Pin Function" Application Circuit 1 Input Circuitry (Use of pins LC, R Semiconductor Group , TCA 505 BG ...
Page 16
Application Circuit 2 Output Circuitry (Use of pins V P-switch, short-circuit-proof, LED indicator, configurable as normally closed or normally open Short-circuit-current sampling: Constant base current: 1) For dimensioning of C see characteristics for noise immunity ...
Page 17
Application Circuit 3 Output Circuitry (Use of pins V N-switch, short-circuit-proof, LED indicator, configurable as normally closed or normally open Short-circuit-current sampling: Constant base current: 1) For dimensioning of C see characteristics for noise immunity ...
Page 18
Application Circuit 4 Output Circuitry (Use of pins SC Q4, C P-switch, short-circuit-proof, configurable as normally closed or normally open Short-circuit-current sampling: During the sampling time, the short-circuit current within the IC is limited to a maximum of ...