Analog Devices Inc. LTC6993MPS6-1#TRMPBF

Overview

LTC6993MPS6-1#TRMPBF from Analog Devices is a monostable multivibrator (one-shot pulse generator) with programmable pulse width from 1µs to 33.6 seconds, rising-edge non-retriggerable trigger input, CMOS output sourcing/sinking 20mA, and operation from –55°C to 125°C. It uses a single RSET resistor and DIV pin voltage to configure timing and polarity, targeting watchdog timers and missing-pulse detection in harsh environments.

For engineers reviewing the LTC6993MPS6-1#TRMPBF datasheet, LTC6993MPS6-1#TRMPBF pinout, LTC6993MPS6-1#TRMPBF application, or LTC6993MPS6-1#TRMPBF equivalent, key selection criteria include trigger edge polarity, retrigger capability, temperature grade (–55°C to 125°C), pulse width accuracy across NDIV settings, and TSOT-23 package compatibility with space-constrained industrial and automotive designs.

Technical Context

The LTC6993MPS6-1#TRMPBF implements a master oscillator with 1µs base period, programmable via ISET current sourced from the SET pin (VSET regulated to 1.00V ±30mV). Its internal 4-bit A/D converter reads the DIV pin voltage to select both NDIV (1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹) and output polarity (POL bit).

Trigger propagation delay is 11ns at V+ = 5.5V, with fast recovery time (tARM = –4ns) and no retriggering behavior. Pulse width accuracy is ±2.3% for tOUT > 512µs, ±3.4% for 8µs–512µs, and ±4.9% for 1µs–8µs - all specified over the full –55°C to 125°C operating range.

Key Specifications

Pinout & Package

Package: 6-Lead Plastic TSOT-23 (0.95mm × 2.9mm × 1.1mm height), lead-free, RoHS-compliant, exposed pad optional.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar monostable timing applications.

Compared with LTC6993IS6-1#TRMPBF and LTC6993HS6-1#TRMPBF, the LTC6993MPS6-1#TRMPBF provides unique qualification to –55°C and full MP-grade reliability testing, making it the only option among these three for mission-critical applications requiring guaranteed operation at cryogenic temperatures and extended thermal cycling.

Availability

LTC6993MPS6-1#TRMPBF is available at Aetrix Electronics and suitable for watchdog timer circuits, missing-pulse detection systems, envelope detector modules, and high-reliability industrial control applications requiring stable component supply across extended temperature ranges.

Supply support for LTC6993MPS6-1#TRMPBF 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The TimerBlox® family, including LTC6993MPS6-1#TRMPBF, was designed to replace discrete 555-based timing circuits with highly accurate, programmable, and temperature-stable silicon solutions for precision timing in space- and power-constrained systems.

FAQ

What is the minimum pulse width supported by the LTC6993MPS6-1#TRMPBF?

The LTC6993MPS6-1#TRMPBF supports a minimum pulse width of 1µs, achievable when NDIV = 1 and RSET = 50kΩ. At this setting, pulse width accuracy is specified as ±4.9% over the full –55°C to 125°C operating range, making it suitable for precise short-duration timing tasks such as digital pulse stretching or glitch detection.

How does the LTC6993MPS6-1#TRMPBF differ from the LTC6993-1 variants with "C", "I", or "H" suffixes?

The LTC6993MPS6-1#TRMPBF belongs to the MP-grade (–55°C to 125°C) temperature class and uses the TSOT-23 package. Unlike C-grade (0°C–70°C), I-grade (–40°C–85°C), or H-grade (–40°C–125°C) variants, the MP-grade undergoes enhanced reliability screening and is qualified for extended-temperature operation, including guaranteed startup at –55°C - a requirement for aerospace and defense applications.

Can the LTC6993MPS6-1#TRMPBF generate negative output pulses?

Yes, the LTC6993MPS6-1#TRMPBF can generate negative output pulses by configuring the DIV pin voltage to select a DIVCODE value where the POL bit = 1 (e.g., DIVCODE = 8–15). This polarity inversion is implemented internally and requires no external components - the output swings from V+ to GND instead of GND to V+.

What is the maximum recommended capacitance on the SET pin of the LTC6993MPS6-1#TRMPBF?

The maximum recommended capacitance on the SET pin of the LTC6993MPS6-1#TRMPBF is less than 10pF to minimize jitter and ensure loop stability. Capacitance exceeding 10pF may increase output pulse width jitter and cause instability in the internal 1V regulator controlling VSET; values up to 100pF maintain basic stability but degrade timing precision.

Is the LTC6993MPS6-1#TRMPBF pin-compatible with other LTC6993-1 variants in the TSOT-23 package?

Yes, the LTC6993MPS6-1#TRMPBF is pin-compatible with all other LTC6993-1 variants in the TSOT-23 package (e.g., LTC6993CS6-1#TRMPBF, LTC6993IS6-1#TRMPBF, LTC6993HS6-1#TRMPBF), sharing identical pinout, electrical interface, and functional behavior - only the temperature grade and reliability screening differ between them.