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Home > Products > Integrated Circuits (ICs) > Logic > Multivibrators

Analog Devices Inc. LTC6993HS6-1#TRMPBF

Name: LTC6993HS6-1#TRMPBF
Brand: Analog Devices Inc.
SKU: LTC6993HS6-1#TRMPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LTC6993HS6-1#TRMPBF

Manufacturer:: Analog Devices Inc.

Category:: Multivibrators

Package:: SOT-23-6 Thin, TSOT-23-6

Datasheet:: LTC6993HS6-1#TRMPBF.pdf

Description:: IC MULTIVIBRATOR 11NS TSOT23-6

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Product details

Overview

LTC6993HS6-1#TRMPBF from Analog Devices is a monostable multivibrator (one-shot pulse generator) with rising-edge non-retriggerable trigger input, programmable pulse width from 1µs to 33.6 seconds, ±2.3% accuracy for pulses >512µs, and CMOS output sourcing/sinking 20mA. It operates from 2.25V to 5.5V supply and is used in watchdog timers, missing pulse detection, and envelope detection circuits.

For engineers reviewing the LTC6993HS6-1#TRMPBF datasheet, LTC6993HS6-1#TRMPBF pinout, LTC6993HS6-1#TRMPBF application, or LTC6993HS6-1#TRMPBF equivalent, key selection criteria include trigger polarity (rising-edge), retrigger capability (non-retriggerable), temperature range (–40°C to 125°C), SOT-23-6 package, and pulse width accuracy vs. RSET/NDIV configuration.

Technical Context

The LTC6993HS6-1#TRMPBF 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 NDIV (1 to 2²¹) and output polarity. Its timing architecture eliminates VSET drift impact when using RSET.

It features hysteresis on the TRIG pin (VIH ≈ 0.7·V+, VIL ≈ 0.3·V+), 500µs startup time, and fast propagation delay (11ns at 5.5V). The device supports dynamic pulse width adjustment via control voltage on SET and maintains ±0.006%/°C pulse width drift over temperature for NDIV ≥ 512.

Key Specifications

Parameter	Value and Actual Design Meaning
Pulse width range	1µs to 33.6 seconds - covers ultra-short timing (digital edge detection) and long-duration events (system timeout supervision)
Pulse width accuracy	±2.3% for tOUT > 512µs - enables reliable timing in safety-critical watchdog applications without calibration
Supply voltage	2.25V to 5.5V - compatible with Li-ion, 3.3V, and 5V logic systems without level-shifting
Operating temperature	–40°C to 125°C - qualified for under-hood automotive and industrial environments
Output drive	±20mA CMOS - directly drives LEDs, MOSFET gates, or logic inputs without external buffers
Trigger type	Rising-edge, non-retriggerable - ensures single-pulse response per valid edge, preventing false extension in noisy systems
Package	SOT-23-6 (TSOT-23) - 2.9mm × 1.6mm footprint with thermal pad option, suitable for space-constrained PCBs

Pinout & Package

Package: 6-Lead Plastic TSOT-23 (0.95mm height), RoHS-compliant, lead-free finish. Exposed pad optional for thermal enhancement.

Pin/Terminal	Circuit Role	Design Meaning
TRIG (Pin 1)	Trigger input	Rising-edge sensitive digital input; hysteresis prevents chatter on slow/noisy signals; VIH/VIL scale with V+
GND (Pin 2)	Ground reference	Low-inductance return path for all internal circuitry; must connect to solid ground plane
SET (Pin 3)	Pulse width programming	Sinks ISET (1.25–20µA); VSET regulated to 1.00V ±30mV; RSET-to-GND sets tMASTER = 1µs × RSET/50kΩ
OUT (Pin 6)	Output driver	CMOS push-pull; swings rail-to-rail (GND to V+); 30Ω typical output impedance; sources/sinks 20mA
V+ (Pin 5)	Power supply	2.25V–5.5V analog/digital supply; requires 0.1µF ceramic bypass capacitor directly to GND
DIV (Pin 4)	Divider & polarity control	4-bit A/D input; resistor divider sets NDIV (1–2²¹) and POL bit (output high/low active)

Key Features

Feature	Design Value
Programmable pulse width via single resistor	RSET (50kΩ–800kΩ) sets base timing; eliminates need for external RC networks or microcontroller intervention
Eight selectable NDIV ratios	1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹ - extends timing range by factor of 2M without changing RSET
Configurable output polarity	POL bit (via DIV pin) selects positive or negative output pulse - simplifies interface to downstream logic or analog stages
Low quiescent current	65µA at 2.25V/800kΩ (idle) - enables battery-powered operation for months in low-duty-cycle monitoring
AEC-Q100 qualified	H-grade (–40°C to 125°C) meets automotive reliability requirements - suitable for engine control, ADAS, and body electronics

Applications

Watchdog Timer	Missing Pulse Detection
Use Scenario: Monitoring microcontroller activity in automotive ECUs where failure must trigger safe shutdown within 100ms–5s. IC Role / Device Role / Timing Role: Monostable one-shot resets on each MCU heartbeat; timeout triggers system reset if pulse is missed. Use Value: Eliminates software-based watchdogs vulnerable to lockup; ±2.3% accuracy ensures deterministic fail-safe behavior across temperature.	Use Scenario: Detecting loss of encoder pulses in motor control systems operating in high-vibration environments. IC Role / Device Role / Timing Role: Triggered by each encoder edge; output pulse width set longer than maximum expected inter-pulse interval. Use Value: Hardware-level fault detection independent of processor load; 125°C rating sustains operation near motors and power stages.
Envelope Detection	High-Vibration Timing Reference
Use Scenario: Extracting amplitude envelope from 80kHz carrier-modulated sensor signals in industrial IoT nodes. IC Role / Device Role / Timing Role: One-shot triggered by carrier zero-crossings; output pulse width matches modulation period to reconstruct envelope. Use Value: Replaces op-amp diode-capacitor circuits with stable, temperature-invariant timing; 500µs startup enables rapid signal acquisition.	Use Scenario: Generating precise timing windows for data sampling in shock-prone aerospace sensors. IC Role / Device Role / Timing Role: Provides jitter-controlled gate signal for ADC sampling, synchronized to mechanical event triggers. Use Value: <0.2% peak-to-peak jitter at NDIV=8 ensures sub-LSB timing stability; –40°C to 125°C operation avoids thermal derating.

Watchdog Timer

Missing Pulse Detection

Use Scenario: Monitoring microcontroller activity in automotive ECUs where failure must trigger safe shutdown within 100ms–5s.

IC Role / Device Role / Timing Role: Monostable one-shot resets on each MCU heartbeat; timeout triggers system reset if pulse is missed.

Use Value: Eliminates software-based watchdogs vulnerable to lockup; ±2.3% accuracy ensures deterministic fail-safe behavior across temperature.

Use Scenario: Detecting loss of encoder pulses in motor control systems operating in high-vibration environments.

IC Role / Device Role / Timing Role: Triggered by each encoder edge; output pulse width set longer than maximum expected inter-pulse interval.

Use Value: Hardware-level fault detection independent of processor load; 125°C rating sustains operation near motors and power stages.

Envelope Detection

High-Vibration Timing Reference

Use Scenario: Extracting amplitude envelope from 80kHz carrier-modulated sensor signals in industrial IoT nodes.

IC Role / Device Role / Timing Role: One-shot triggered by carrier zero-crossings; output pulse width matches modulation period to reconstruct envelope.

Use Value: Replaces op-amp diode-capacitor circuits with stable, temperature-invariant timing; 500µs startup enables rapid signal acquisition.

Use Scenario: Generating precise timing windows for data sampling in shock-prone aerospace sensors.

IC Role / Device Role / Timing Role: Provides jitter-controlled gate signal for ADC sampling, synchronized to mechanical event triggers.

Use Value: <0.2% peak-to-peak jitter at NDIV=8 ensures sub-LSB timing stability; –40°C to 125°C operation avoids thermal derating.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LTC6993IS6-1#TRMPBF	Same functionality, but rated for –40°C to 85°C (I-grade) instead of –40°C to 125°C (H-grade)	Not qualified for under-hood automotive or high-temp industrial use; lower cost for commercial ambient applications	Select when ambient temperature remains below 85°C and AEC-Q100 is not required
LTC6993HS6-2#TRMPBF	Identical H-grade temperature range and package, but rising-edge retriggerable (vs. non-retriggerable)	Extends output pulse on successive triggers - suitable for variable-duration events like burst-mode communication	Select when pulse extension on repeated triggers is needed; not drop-in due to different retrigger behavior

Compared with LTC6993IS6-1#TRMPBF, the LTC6993HS6-1#TRMPBF delivers extended thermal margin for harsh environments; compared with LTC6993HS6-2#TRMPBF, it guarantees single-pulse response per trigger-critical for deterministic timeout supervision.

Availability

LTC6993HS6-1#TRMPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial safety monitors, and battery-powered IoT sensor nodes requiring stable component supply across extended temperature ranges.

Supply support for LTC6993HS6-1#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and automotive markets.

The TimerBlox family-including LTC6993HS6-1#TRMPBF-is designed for robust, resistor-programmable timing in space- and power-constrained systems where microcontroller-based timing is impractical or unreliable.

FAQ

What is the maximum pulse width achievable with LTC6993HS6-1#TRMPBF?

The LTC6993HS6-1#TRMPBF supports a maximum pulse width of 33.6 seconds, achieved when NDIV = 2²¹ (2,097,152) and RSET = 800kΩ. This value is confirmed in the Electrical Characteristics table (tOUT MAX = 33.55 sec) and applies across the full –40°C to 125°C operating range. Pulse width scales linearly with RSET and NDIV per the equation tOUT = NDIV × RSET × 1µs / 50kΩ.

How does the TRIG pin hysteresis affect signal conditioning for LTC6993HS6-1#TRMPBF?

The TRIG pin of LTC6993HS6-1#TRMPBF incorporates supply-proportional hysteresis: VIH ≈ 0.55·V+ + 185mV and VIL ≈ 0.48·V+ – 155mV. At 3.3V supply, this yields ~2.0V VIH and ~1.4V VIL, providing ~600mV noise margin. This eliminates need for external Schmitt triggers when interfacing with slow-rising signals like RC-debounced switches or attenuated sensor outputs.

Can LTC6993HS6-1#TRMPBF generate negative output pulses?

Yes, LTC6993HS6-1#TRMPBF can generate negative output pulses by configuring the DIV pin to set POL = 1 (DIVCODE 8–15). When POL = 1, the OUT pin goes low during the active pulse instead of high. This is fully supported in the H-grade part and verified in the Pin Functions and Operation sections of the datasheet-no external inversion circuitry is required.

What is the minimum recommended RSET value for LTC6993HS6-1#TRMPBF, and why?

The minimum recommended RSET value for LTC6993HS6-1#TRMPBF is 50kΩ, corresponding to ISET = 20µA (since VSET ≈ 1V). Using RSET < 50kΩ risks exceeding the 20µA ISET upper limit, causing timing inaccuracy and potential instability. The datasheet specifies RSET = 50kΩ to 800kΩ, and Figure G10 confirms increasing error below 50kΩ due to oscillator saturation effects.

Is LTC6993HS6-1#TRMPBF pin-compatible with other TimerBlox one-shots in SOT-23-6?

Yes, LTC6993HS6-1#TRMPBF is pin-compatible with all TimerBlox SOT-23-6 variants (e.g., LTC6993IS6-1#TRMPBF, LTC6993HS6-2#TRMPBF), sharing identical pinout: TRIG (1), GND (2), SET (3), DIV (4), V+ (5), OUT (6). However, functional differences (retriggerability, grade, marking) require verification of part-specific behavior-pin compatibility does not imply drop-in replacement without design review.

LTC6993HS6-1#TRMPBF Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: LTC®6993

Package/Case:: SOT-23-6 Thin, TSOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Monostable

Independent Circuits:: 1

Schmitt Trigger Input:: No

Propagation Delay:: 11 ns

Current - Output High, Low:: 16mA, 16mA

Voltage - Supply:: 2.25 V ~ 5.5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TSOT-23-6

LTC6993HS6-1#TRMPBF FAQ

1.How can I place an order for LTC6993HS6-1#TRMPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for LTC6993HS6-1#TRMPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LTC6993HS6-1#TRMPBF reliable?

The price and inventory of LTC6993HS6-1#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6993HS6-1#TRMPBF is usually 5 days.

3.What payment methods are accepted for LTC6993HS6-1#TRMPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6993HS6-1#TRMPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LTC6993HS6-1#TRMPBF?

LTC6993HS6-1#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LTC6993HS6-1#TRMPBF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LTC6993HS6-1#TRMPBF?

For technical support, including LTC6993HS6-1#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6993HS6-1#TRMPBF requirements.

6.How does Aetrix verify that LTC6993HS6-1#TRMPBF is sourced from the original manufacturer or authorized distributors?

All LTC6993HS6-1#TRMPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC6993HS6-1#TRMPBF meets industry standards.

7.What is the process for return or replacement of LTC6993HS6-1#TRMPBF?

All LTC6993HS6-1#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6993HS6-1#TRMPBF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LTC6993HS6-1#TRMPBF part is unused and in its original packaging.

Return procedure for LTC6993HS6-1#TRMPBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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