SLUSDL4 February 2020 TPS59632-Q1
PRODUCTION DATA
The TPS59632-Q1 provides independent channels of current feedback for every phase, to increase the system accuracy and reduce the dependence of circuit performance on layout compared to an externally summed architecture. The design can use inductor DCR sensing to yield the best efficiency or resistor current sensing to yield the most accuracy across wide temperature ranges. As inductor DCR sensing is not suitable for automotive applications due to wide variation in current sensing across temperature, resistor sensing is recommended. This sense resistor must be connected in series with the inductor and requires Kelvin sensing terminals for improved current sense accuracy.
The pins CSP1, CSN1, CSP2, CSN2, CSP3, and CSN3 are the inductor current sensing pins for the each of the three phases of the converter.