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Original question:
TIPD158: I find a mistake in Appendix A.1 Electrical Schematic
We are implementing the same circuit as given in TIPD158, but facing an issue of transistor's collector and emitter being shorted after giving 24 V loop supply on collector, and thus damaging the transistor and R5 in circuit attached.
the steps and points which we are following in our circuit are as follows-
1) We are giving input to opamp through R2 i.e. 1-3V
2) VReg supply coming through R1 from a regulator of 3.3V output.
3) the components used are
OPAMP- LM324n / OPA192ID
Transistor- TP122/ BC548
PFA the images attached as of implemented circuit as well as from TIPD158
yes, we are now using XTR117AIDGQT circuit for current loop transmitter, The problem in that circuit is that, when we are connecting a resistor across Pin 4 and Pin 3 of XTR117 IC we can see the output in 4-20mA.
But as in figure attached, the loop connection with our different board as shown in circuit with blue line, we are not able to see the current output across R7.
