Texas Instruments TMP236A4DCKT

Overview

TMP236A4DCKT from Texas Instruments is a precision analog-output temperature sensor in SC70-5 package, delivering ±1°C typical accuracy over –10°C to +125°C, 19.5 mV/°C gain, 400 mV offset at 0°C, and 9 µA quiescent current - used for high-fidelity thermal monitoring in automotive infotainment and factory automation systems.

For engineers reviewing the TMP236A4DCKT datasheet, TMP236A4DCKT pinout, TMP236A4DCKT application, or TMP236A4DCKT equivalent, this page provides verified functional specifications, validated SC70 pin mapping, confirmed A4-level accuracy behavior, and real-world ADC interface guidance - all aligned with TI's SBOS857E production data sheet.

Technical Context

The TMP236A4DCKT implements a CMOS-based linear analog temperature sensing architecture with piecewise-linear output compensation above 100°C, using inflection points at 0°C and 100°C to maintain ±1°C typical accuracy across its operating range. Its class-AB output driver delivers up to 500 µA while driving capacitive loads ≤1000 pF.

It operates from 3.1 V to 5.5 V supply, features short-circuit protected output, and achieves 800 µs power-on settling time to ±0.5°C accuracy - enabling low-power cycling in battery-constrained applications without sacrificing linearity or thermal response fidelity.

Key Specifications

Pinout & Package

Package: SC70-5 (2.00 mm × 1.25 mm), surface-mount, RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog-output temperature sensing applications.

Compared with LMT86DBVR and TMP235A4DCKT, TMP236A4DCKT offers the highest gain and tightest typical accuracy within its –10°C to +125°C window - making it optimal for applications prioritizing ADC resolution and mid-range thermal fidelity over extreme low-temp operation or ultra-low supply voltage.

Availability

TMP236A4DCKT is available at Aetrix Electronics and suitable for automotive infotainment, factory automation, and wireless infrastructure applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for TMP236A4DCKT 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

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision sensing, power management, and signal chain solutions.

The TMP23x product line was designed specifically for cost-effective, high-accuracy analog temperature measurement in space-constrained, low-power systems - targeting automotive, industrial, and communications equipment where thermistor replacement and ADC compatibility are critical.

FAQ

What is the operating temperature range of the TMP236A4DCKT?

The TMP236A4DCKT operates from –10°C to +125°C with ±1°C typical accuracy across that range. It is not specified for operation below –10°C or above +125°C; attempting use outside this range may result in uncharacterized output behavior or reduced accuracy. The device's piecewise-linear transfer function is calibrated only for this interval, and datasheet performance guarantees do not extend beyond it.

Does the TMP236A4DCKT require external calibration?

No, the TMP236A4DCKT does not require external calibration. It is factory-trimmed to deliver ±1°C typical accuracy from –10°C to +125°C with no user adjustment. The device uses internal laser trimming to set its 19.5 mV/°C gain and 400 mV offset at 0°C, and its piecewise-linear compensation is implemented in hardware - enabling plug-and-play integration into analog temperature measurement circuits.

Can the TMP236A4DCKT drive a 1000 pF load directly?

Yes, the TMP236A4DCKT is characterized to drive up to 1000 pF capacitively without external buffering. Its class-AB output stage delivers 500 µA and maintains linearity and accuracy under this load condition, as verified in TI's SBOS857E datasheet Figure 6 and Section 6.5. This capability allows direct connection to SAR ADC sample-and-hold inputs, provided total CLOAD (including PCB trace capacitance, mux capacitance, and sampling capacitor) remains ≤1000 pF.

What is the supply voltage requirement for the TMP236A4DCKT?

The TMP236A4DCKT requires a supply voltage between 3.1 V and 5.5 V. Operation below 3.1 V is not guaranteed and may cause output saturation or increased error; operation above 5.5 V risks permanent damage. The device draws only 9 µA typical, so even minimal LDOs or filtered DC-DC outputs meeting this range are sufficient - but a 0.1 µF ceramic bypass capacitor at the VDD pin is mandatory for noise immunity.

How does the TMP236A4DCKT differ from the TMP235A4DCKT?

The TMP236A4DCKT differs from the TMP235A4DCKT in three key ways: it has higher gain (19.5 mV/°C vs. 10 mV/°C), narrower operating temperature range (–10°C to +125°C vs. –40°C to +150°C), and higher minimum supply voltage (3.1 V vs. 2.3 V). Both share ±1°C typical accuracy and SC70-5 packaging, but TMP236A4DCKT prioritizes resolution and mid-range fidelity, while TMP235A4DCKT emphasizes extended temperature coverage and ultra-low-voltage operation.