Diodes Incorporated PT7M6142NLEXVEX

Overview

PT7M6142NLEXVEX from Diodes Incorporated is a precision ultra-low-power voltage detector with 3.2 V threshold, N-channel open-drain active-low reset output, ±1.5% accuracy at 25°C, 1 μA supply current at 3.6 V, and 17 μs propagation delay - used to monitor battery and system supply rails in portable and space-constrained embedded systems.

For engineers reviewing the PT7M6142NLEXVEX datasheet, PT7M6142NLEXVEX pinout, PT7M6142NLEXVEX application, or PT7M6142NLEXVEX equivalent, key selection criteria include detection threshold accuracy over temperature (±2.5% typ), hysteresis (5%), operating voltage range (1.2–5.5 V), and UDFN1.6×1.6-4L package compatibility with high-density PCB layouts.

Technical Context

The PT7M6142NLEXVEX implements a precision bandgap reference (1.25 V), comparator, and internally trimmed resistor network to set a fixed 3.2 V detection threshold (VTH−) with hysteresis (VTH+ = 1.05 × VTH−). It asserts RST low when VCC falls below VTH− and releases only after VCC rises above VTH+.

Its N-channel open-drain output supports flexible pull-up configurations across diverse logic families and supply domains. The device operates continuously from −40°C to +85°C with no external components required for basic reset generation.

Key Specifications

Pinout & Package

PT7M6142NLEXVEX is housed in a 4-pin UDFN1.6×1.6-4L (XV) package with wettable flanks, optimized for automated optical inspection and high thermal performance in compact designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with APX803S-32SA-7 and TLV803EB32DBZR, PT7M6142NLEXVEX delivers tighter threshold accuracy than the former and lower quiescent current than the latter, while its open-drain output and integrated 5% hysteresis simplify design for multi-voltage systems.

Availability

PT7M6142NLEXVEX is available at Aetrix Electronics and suitable for battery-powered wearables, industrial sensor nodes, medical diagnostic handhelds, and smart metering modules requiring stable component supply and long-term lifecycle support.

Supply support for PT7M6142NLEXVEX 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

PT7M6142NLEXVEX belongs to the PT7M61xx ultra-low-power voltage detector family, designed specifically for accurate, low-current supply monitoring in space- and energy-constrained embedded systems.

FAQ

What is the function of the NC pin on PT7M6142NLEXVEX?

The NC (No Connect) pin is internally unconnected and serves no electrical function. It must be left floating or tied to GND per PCB layout guidelines to avoid parasitic coupling. This pin does not require termination to VCC or any other voltage rail and has no impact on device operation when properly handled.

Can PT7M6142NLEXVEX operate reliably below 1.8 V?

Yes - PT7M6142NLEXVEX is fully specified down to 1.2 V supply voltage. Its internal bandgap reference and comparator maintain functional accuracy and guaranteed reset assertion even at 1.2 V, enabling use with single-cell NiMH or emerging low-voltage battery chemistries.

How does the 5% hysteresis affect system reset behavior?

The 5% hysteresis (VTH+ = 1.05 × VTH−) creates a 160 mV window (for 3.2 V threshold) between assert and release points. This prevents repeated toggling of RST during slow or noisy supply recovery, ensuring clean, single-pulse reset generation without external filtering components.

Is PT7M6142NLEXVEX RoHS-compliant and halogen-free?

Yes - PT7M6142NLEXVEX carries the "E" suffix indicating lead-free and green compliance per Diodes Incorporated's standard packaging. It meets RoHS Directive 2011/65/EU and is certified halogen-free (Br < 900 ppm, Cl < 900 ppm, total halogens < 1500 ppm).