Analog Devices Inc. LTC6993MPS6-3#TRPBF

Overview

LTC6993MPS6-3#TRPBF from Analog Devices is a monostable multivibrator (one-shot pulse generator) with programmable pulse width from 1µs to 33.6 seconds, falling-edge trigger input, non-retriggerable operation, and CMOS output sourcing/sinking 20mA. It operates from 2.25V to 5.5V, consumes 70µA at 10µs pulse width, and is qualified for –55°C to 125°C automotive-grade operation in TSOT-23 package.

For engineers reviewing the LTC6993MPS6-3#TRPBF datasheet, LTC6993MPS6-3#TRPBF pinout, LTC6993MPS6-3#TRPBF application, or LTC6993MPS6-3#TRPBF equivalent, key selection criteria include confirmed falling-edge trigger polarity, non-retriggerable timing behavior, ±4.9% pulse width accuracy at NDIV = 1, 500µs startup time, and AEC-Q100 qualification for high-reliability embedded timing.

Technical Context

The LTC6993MPS6-3#TRPBF implements a master oscillator with 1µs base period, programmable via ISET current sourced from the SET pin (1.25µA–20µA), and an internal 4-bit A/D converter on the DIV pin that selects both NDIV (1, 8, 64, ..., 2²¹) and output polarity (POL bit). Its timing architecture ensures VSET regulation at 1.00V ±30mV, decoupling pulse width accuracy from supply variation when using RSET.

As the -3 variant, it responds exclusively to falling-edge transitions on TRIG and ignores subsequent triggers until output termination-enabling precise single-event timing in noise-prone environments. The device features hysteresis on TRIG (VIH ≈ 0.7·V+, VIL ≈ 0.3·V+) and supports dynamic pulse width adjustment via control voltage on SET.

Key Specifications

Pinout & Package

Package: 6-Lead Plastic TSOT-23 (0.95mm height), RoHS-compliant, lead-free finish. Exposed pad not present in S6 package.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC6993IS6-3#TRPBF, the LTC6993MPS6-3#TRPBF provides verified operation down to –55°C and AEC-Q100 qualification-critical for automotive safety systems-while TLV3701IPW demands external components to achieve comparable timing precision and lacks factory-calibrated accuracy.

Availability

LTC6993MPS6-3#TRPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial safety interlocks, and battery-powered IoT sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6993MPS6-3#TRPBF 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 LTC6993MPS6-3#TRPBF-is designed for precision silicon timing applications where programmability, temperature stability, and reliability replace traditional RC or crystal-based solutions in space-constrained systems.

FAQ

What is the trigger polarity and retrigger behavior of the LTC6993MPS6-3#TRPBF?

The LTC6993MPS6-3#TRPBF is a falling-edge triggered, non-retriggerable monostable. A falling transition on the TRIG pin initiates the output pulse, and any additional falling edges occurring before pulse completion are ignored. This behavior is fixed per the -3 variant designation and cannot be altered via external configuration.

How do I set a 10ms output pulse width using the LTC6993MPS6-3#TRPBF?

To achieve a 10ms pulse width with the LTC6993MPS6-3#TRPBF, select NDIV = 512 (DIVCODE = 3, R1 = 1000kΩ, R2 = 280kΩ) and RSET = 100kΩ. This yields tOUT = 512 × (100kΩ ÷ 50kΩ) × 1µs = 10.24ms. Use 0.5% metal film resistors for best accuracy and limit capacitance on SET and DIV pins to <10pF and <100pF respectively.

Does the LTC6993MPS6-3#TRPBF require external components for basic operation?

Yes-the LTC6993MPS6-3#TRPBF requires at minimum a 0.1µF bypass capacitor from V+ to GND, an RSET resistor from SET to GND, and a resistor divider (R1/R2) on the DIV pin to set NDIV and polarity. No external timing capacitor or inductor is needed, as all timing is generated internally via the master oscillator and programmable divider.

What is the maximum output current drive capability of the LTC6993MPS6-3#TRPBF?

The LTC6993MPS6-3#TRPBF provides rail-to-rail CMOS output with ±20mA drive strength at V+ = 2.25V to 5.5V. VOH is 4.84V (min) at V+ = 5.5V and IOUT = –16mA; VOL is 0.26V (max) at same conditions. For LED or low-impedance loads, a series current-limiting resistor is mandatory to stay within the 20mA absolute maximum rating.

Is the LTC6993MPS6-3#TRPBF qualified for automotive applications?

Yes-the LTC6993MPS6-3#TRPBF is AEC-Q100 qualified (Grade 1) and specified for operation from –55°C to 125°C. It undergoes stress testing including HTOL, TC, and UHAST per automotive reliability standards, making it suitable for engine control, transmission, and ADAS modules where extended temperature performance and long-term stability are required.