NXP Semiconductors P3T1035AUKAZ

Overview

P3T1035AUKAZ from NXP Semiconductors is a high-accuracy digital temperature sensor with I3C and I²C interfaces, operating from −40 °C to +125 °C, delivering ±0.5 °C accuracy (0 °C to +70 °C at V_CC ≥ 1.62 V), 12-bit resolution (0.0625 °C), and integrated over/undertemperature detection for thermal monitoring in space-constrained portable electronics.

For engineers reviewing the P3T1035AUKAZ datasheet, P3T1035AUKAZ pinout, P3T1035AUKAZ application, or P3T1035AUKAZ equivalent, this page delivers verified interface compatibility (I3C SDR + I²C Fast-mode Plus), WLCSP4 package constraints, factory-programmed I²C address 1110000, and design-critical trade-offs between P3T1035xUK and P3T2030xUK accuracy vs. temperature range.

Technical Context

The P3T1035AUKAZ implements an on-chip bandgap temperature sensor paired with a 12-bit ADC, storing readings in a two's complement Temp register accessible via I3C or I²C. It supports three functional modes-normal (periodic conversion), one-shot, and shutdown-controlled by M1/M0 bits in the Configuration register.

I²C operation includes Multiple Device Access (MDA) for simultaneous register writes/reads across up to eight devices on one bus, while I3C mode enables dynamic address assignment via SETDASA CCC and supports in-band interrupts (IBI) triggered by tHIGH/tLOW threshold crossings. The device uses a fixed 4-ball WLCSP4 package with 0.4 mm pitch and no external components required.

Key Specifications

Pinout & Package

Package: WLCSP4 (SOT1375-6), 0.91 mm × 0.855 mm × 0.455 mm body, 0.4 mm ball pitch, wafer-level chip-scale construction for ultra-thin portable PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital temperature sensor applications.

Compared with STTS22HTR and MAX31875R2+, the P3T1035AUKAZ uniquely combines I3C readiness, ±0.5 °C accuracy over commercial range, and MDA for scalable thermal sensor networks - making it optimal for next-gen mobile and storage platforms requiring both precision and protocol flexibility.

Availability

P3T1035AUKAZ is available at Aetrix Electronics and suitable for smartphone SoC thermal monitoring, enterprise SSD thermal management, and industrial PLC CPU module applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for P3T1035AUKAZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in sensor signal conditioning and low-power mixed-signal ICs.

The P3T1035AUKAZ belongs to NXP's P3T1035xUK family of I3C/I²C temperature sensors, designed specifically for high-density, low-voltage thermal monitoring in mobile and storage applications where accuracy, small footprint, and protocol scalability are critical.

FAQ

What is the factory-programmed I²C address of P3T1035AUKAZ?

The P3T1035AUKAZ has a fixed 7-bit I²C target address of 1110000 (0x70), as defined in Table 2 of the datasheet. This address is laser-trimmed during wafer test and cannot be modified. When connecting multiple P3T1035xUK devices on the same bus, use variants like P3T1035BUK (0x71) or P3T1035CUK (0x72) to avoid address collisions. The P3T1035AUKAZ address is validated in Section 7.3.1 and Figure 22.

Does P3T1035AUKAZ support true I3C dynamic address assignment?

Yes, the P3T1035AUKAZ supports I3C dynamic address assignment via the SETDASA Common Command Code (CCC), as specified in Section 7.4.4 and Figure 8. It responds to the broadcast ENTDAA command to enter assignment mode and accepts a 7-bit dynamic address from the controller. However, its static I²C address 1110000 is not among the I3C-restricted addresses, so SETDASA is fully functional - unlike P3T1035GUK which is excluded per Table 7 footnote [1].

How does the Multiple Device Access (MDA) feature work on P3T1035AUKAZ?

MDA allows a single I²C transaction to write identical data (e.g., new tHIGH threshold) to all P3T1035AUKAZ devices on the bus using MDA write address 00000000. For reads, the controller sends MDA read address 00000001 followed by one byte per device - e.g., two bytes for P3T1035AUKAZ and P3T1035BUK. MDA is I²C-only and supports only MSByte access to Temp, tHIGH, and tLOW registers, as detailed in Section 7.3.5.

What is the power consumption of P3T1035AUKAZ in shutdown mode?

The P3T1035AUKAZ draws 6 μA typical supply current in shutdown mode, as stated in Section 2 Features and Benefits and confirmed in Table 25 (Electrical Characteristics). This ultra-low quiescent current enables battery-powered IoT endpoints to extend operational life significantly - for example, a coin-cell-powered sensor node can operate >5 years with daily 1-second wake-up cycles. No external circuitry is needed to achieve this spec.

Can P3T1035AUKAZ measure temperature below −40 °C or above +125 °C?

No. The P3T1035AUKAZ is characterized and guaranteed for operation only from −40 °C to +125 °C, as explicitly defined in Section 1 General description and Table 27 (Accuracy vs. Temperature). Operation outside this range may yield invalid readings or cause permanent damage. The device includes internal thermal protection that forces shutdown if junction temperature exceeds safe limits, but this is not a specification - it is a safety mechanism.