Texas Instruments TPS3710DDCT

Overview

TPS3710DDCT from Texas Instruments is an automotive-grade wide-input-voltage precision voltage detector IC used for system reset and power monitoring in microcontroller, FPGA, and DC-DC enable circuits. It operates from 1.8V to 18V supply, features a 400mV internal reference with ±1.0% overtemperature accuracy, 5.5µA typical quiescent current, open-drain 18V-rated output, and built-in 5.5mV hysteresis.

For engineers reviewing the TPS3710DDCT datasheet, TPS3710DDCT pinout, TPS3710DDCT application, or TPS3710DDCT equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use scenarios, and validated alternative options - all grounded in TI's production data sheet SBVS271A (Feb 2024) and orderable-part documentation.

Technical Context

The TPS3710DDCT implements a high-accuracy comparator with a trimmed 400mV internal reference and programmable threshold via external resistor divider on the SENSE pin. Its input supports up to 6.5V independent of VDD, enabling monitoring of rails higher than its own supply.

It operates in three functional modes: normal operation above 1.8V (with 150µs start-up delay), undervoltage lockout between 1.3V–1.7V, and undefined output below 0.8V power-on reset threshold. The open-drain OUT pin sinks up to 40mA and supports pull-up voltages up to 18V, decoupled from VDD.

Key Specifications

Pinout & Package

TPS3710DDCT uses the SOT-23-THIN (DDC) 6-pin package, measuring 2.90mm × 1.60mm. All three GND pins must be connected to system ground for proper thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage detector applications.

Compared with TLV809EADBZR and MAX6326UT29D3+, the TPS3710DDCT uniquely supports adjustable thresholds down to 400mV, operates across 1.8V–18V, delivers 18V-tolerant output, and is AEC-Q100 Grade 1 qualified - making it the only option suitable for automotive and industrial wide-rail monitoring with precision reset timing.

Availability

TPS3710DDCT is available at Aetrix Electronics and suitable for industrial control systems, embedded computing modules, and FPGA power monitoring requiring stable component supply across extended temperature and voltage ranges.

Supply support for TPS3710DDCT 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TPS3710DDCT belongs to TI's precision voltage supervisor product line, engineered specifically for high-reliability power-monitoring applications in automotive and industrial environments where wide input range, tight threshold accuracy, and AEC-Q100 compliance are mandatory.

FAQ

What is the operating temperature range of the TPS3710DDCT?

The TPS3710DDCT is qualified for automotive Grade 1 operation, with a specified junction temperature range of –40°C to +125°C. This rating is validated per AEC-Q100 standards and applies across its full 1.8V–18V supply range. The device maintains ±1.0% threshold accuracy throughout this range, making TPS3710DDCT suitable for under-hood automotive modules and industrial edge controllers exposed to extreme thermal cycling.

Can the TPS3710DDCT monitor a 24V rail?

Yes, the TPS3710DDCT can monitor a 24V rail using an external resistor divider on the SENSE pin. Although the SENSE pin voltage must remain ≤6.5V, the internal 400mV reference allows scalable threshold setting - for example, a 60:1 divider reduces 24V to 400mV. The TPS3710DDCT's 18V-rated open-drain output also supports pull-up to 24V logic levels, enabling direct interface with high-voltage reset inputs without additional level shifters.

Does the TPS3710DDCT require an external capacitor on the SENSE pin?

An external capacitor on the SENSE pin is not required for basic operation but is recommended for noisy environments. TI specifies that a 1nF–10nF bypass capacitor from SENSE to GND improves immunity to fast transients and layout-induced coupling. This is especially valuable in motor drive or switching power supply applications where rail noise could cause false triggering - the TPS3710DDCT's built-in 5.5mV hysteresis alone may be insufficient under severe EMI conditions.

What is the maximum sink current capability of the TPS3710DDCT output?

The TPS3710DDCT output can sink up to 40mA while maintaining VOL ≤250mV (tested at VDD = 5V, IO = 5mA). Absolute maximum ratings permit 40mA continuous sink, though thermal limits and PCB copper area constrain sustained operation. For typical reset signaling, 1–5mA is sufficient; the 40mA rating ensures robustness against capacitive loads and short-duration surge currents during system power-up sequences involving TPS3710DDCT.

How does the TPS3710DDCT handle power supply ramp-up during startup?

The TPS3710DDCT incorporates a 150µs start-up delay (td(start)) - the output remains undefined until VDD exceeds 1.8V and remains stable for at least 150µs. This prevents premature release of reset during slow or noisy power ramps. Once enabled, the device monitors SENSE continuously; if VDD later drops into the 1.3V–1.7V UVLO window, OUT is forced low regardless of SENSE, ensuring fail-safe behavior. This dual-stage timing is explicitly defined in the TPS3710DDCT datasheet Section 6.4.