SLVAEW6 December 2020 TPS2661
With accurate current limiting, low leakage currents, over-voltage and under-voltage protections, TPS26610 device offers a more compact and accurate solution for current input protection in analog input modules. Table 5-1 summarizes the comparison between current input protection with TPS26610 and with discrete circuit.
| Current Input Protection with TPS26610 | Current Input Protection with Discrete Circuit | |
|---|---|---|
Error due to leakage currents (-40 to 125°C) |
0.0005% | 1.6% |
Current Limit Accuracy (-40 to 125°C) |
±17% | ±50% |
| Over-voltage and under-voltage Cut-off protection for miswiring faults | Yes | No |
| Estimated PCB Area | 43 mm2 | 102 to 142 mm2 |
| Lower Noise and Higher ENOB with 249Ω Burden Resistor without increase in leakage currents | Yes | No |
| Temperature Rise in miswiring faults (Above Ambient Temperature) | 15°C | 95°C |
| Voltage Drop in Loop | 150 mV | 800 mV (with 40Ω PTC) |