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Analog Devices Inc. LTC6993HS6-3#TRMPBF
- Part No.:
- LTC6993HS6-3#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Multivibrators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6993HS6-3#TRMPBF.pdf
- Description:
- IC MULTIVIBRATOR 11NS TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,126
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Product details
Overview
LTC6993HS6-3#TRMPBF from Analog Devices is a falling-edge–triggered, non-retriggerable monostable multivibrator (one-shot) IC with 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 over –40°C to 125°C and is housed in a 6-lead TSOT-23 package-ideal for high-vibration automotive watchdog and missing-pulse detection systems.
For engineers reviewing the LTC6993HS6-3#TRMPBF datasheet, LTC6993HS6-3#TRMPBF pinout, LTC6993HS6-3#TRMPBF application, or LTC6993HS6-3#TRMPBF equivalent, key selection criteria include confirmed falling-edge trigger polarity, non-retriggerable behavior, temperature-grade H specification (–40°C to 125°C), SOT-23 footprint compatibility, and verified pulse-width error bounds across NDIV and RSET ranges.
Technical Context
The LTC6993HS6-3#TRMPBF implements a master oscillator with 1µs base period, programmable via ISET current sourced from the SET pin (regulated at 1.00V ±30mV), and an internal 4-bit A/D converter on the DIV pin that selects both NDIV (1 to 2,097,152) and output polarity (POL bit). 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+), 11ns typical propagation delay at 5.5V, and fast recovery time (tARM = –4ns), enabling reliable operation with slow or noisy trigger signals in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pulse width range | 1µs to 33.6 seconds-covers ultra-short timing events and long-duration timeouts without external RC networks. |
| Pulse width accuracy | ±2.3% max for tOUT > 512µs-enables precise timing-critical functions like envelope detection and frequency discrimination. |
| Supply voltage | 2.25V to 5.5V-supports direct interface with Li-ion battery rails and 3.3V/5V logic systems. |
| Operating temperature | –40°C to 125°C-qualified for under-hood automotive and industrial embedded applications. |
| Output drive | CMOS, ±20mA-directly drives LEDs, MOSFET gates, or logic inputs without buffering. |
| Trigger polarity | Falling-edge only-ensures deterministic response to signal decay or power-down transitions. |
| Retrigger capability | Non-retriggerable-guarantees fixed-duration output regardless of repeated triggers during active pulse. |
Pinout & Package
Package: 6-Lead Plastic TSOT-23 (0.95mm × 2.9mm × 1.1mm height), RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TRIG (Pin 1) | Falling-edge trigger input | Initiates output pulse on signal transition from HIGH to LOW; includes hysteresis for noise immunity. |
| GND (Pin 2) | Analog/digital ground reference | Low-inductance return path for SET, TRIG, and output currents; must connect to solid ground plane. |
| SET (Pin 3) | Pulse width programming node | Sinks 1.25µA–20µA to set master oscillator frequency; requires ≤10pF capacitance for low jitter. |
| DIV (Pin 4) | Divider ratio and polarity control | Voltage-programmed 4-bit input (VDIV/V+ = (DIVCODE + 0.5)/16 ±1.5%) selecting NDIV and output polarity. |
| V+ (Pin 5) | Power supply input | 2.25V–5.5V single supply; requires local 0.1µF ceramic bypass capacitor to GND. |
| OUT (Pin 6) | CMOS output driver | Swings rail-to-rail (GND to V+); sources/sinks 20mA; series resistor needed for LED or low-Z loads. |
Key Features
| Feature | Design Value |
|---|---|
| Falling-edge trigger with hysteresis | Enables robust detection of decaying signals in noisy automotive or industrial environments without false triggering. |
| Non-retriggerable one-shot behavior | Guarantees fixed-duration output pulse even if multiple falling edges occur before timeout completion. |
| Programmable output polarity | Configurable positive or negative pulse via DIV pin voltage-supports both active-HIGH and active-LOW system interfaces. |
| Ultra-low quiescent current | 65µA typical at 2.25V/800kΩ RSET-extends battery life in portable and remote-sensor applications. |
| Wide pulse width range (1µs–33.6s) | Eliminates need for multiple discrete timers or microcontroller-based timing in diverse subsystems. |
Applications
| Watchdog Timer | Missing Pulse Detection |
|---|---|
Use Scenario: Monitors microcontroller activity in automotive engine control units where failure to refresh within timeout indicates lockup. IC Role / Device Role / Timing Role: Falling-edge–triggered one-shot resets safety-critical subsystems upon missed refresh signal. Use Value: Ensures fail-safe shutdown with guaranteed –40°C to 125°C operation and <2.3% pulse error for 10ms+ timeouts. | Use Scenario: Detects loss of periodic clock or data strobe in industrial motor drives or encoder feedback paths. IC Role / Device Role / Timing Role: Non-retriggerable monostable asserts fault flag when expected falling-edge trigger disappears. Use Value: Provides deterministic, jitter-immune timeout detection independent of MCU firmware state. |
| Envelope Detection | High-Vibration Environments |
Use Scenario: Extracts amplitude envelope from modulated RF carrier signals in wireless sensor nodes. IC Role / Device Role / Timing Role: Generates gated output pulse synchronized to carrier burst duration using falling-edge trigger. Use Value: Delivers accurate pulse width matching carrier ON-time with <0.05% peak-to-peak jitter at NDIV = 64. | Use Scenario: Timing circuitry in aerospace inertial measurement units subjected to 20g+ mechanical shock. IC Role / Device Role / Timing Role: Provides stable, drift-compensated timing reference immune to vibration-induced parasitic coupling. Use Value: Achieves ±0.008%/°C pulse width drift over temperature and maintains functionality at 125°C junction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar monostable timing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6993IS6-3#TRMPBF | Same functionality and pinout, but rated for –40°C to 85°C (I-grade) instead of –40°C to 125°C (H-grade). | Suitable for commercial/industrial equipment not requiring extended temperature operation. | Select when ambient operating temperature remains below 85°C and cost optimization is prioritized. |
| LTC6993HS6-3#WTRMPBF | Automotive-grade variant with controlled manufacturing, AEC-Q100 qualification, and enhanced reliability reporting. | Required for safety-critical automotive ECUs where traceability and PPAP compliance are mandatory. | Choose for production automotive designs needing certified automotive reliability documentation. |
Compared with LTC6993IS6-3#TRMPBF, the LTC6993HS6-3#TRMPBF delivers guaranteed performance up to 125°C junction temperature and tighter thermal drift specs; versus LTC6993HS6-3#WTRMPBF, it lacks AEC-Q100 certification and automotive-specific quality documentation-making it suitable for non-automotive high-temp industrial use.
Availability
LTC6993HS6-3#TRMPBF is available at Aetrix Electronics and suitable for automotive engine control, industrial motor protection, portable medical devices, and high-reliability embedded systems requiring stable component supply across extended temperature ranges.
Supply support for LTC6993HS6-3#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 LTC6993HS6-3#TRMPBF-is designed for plug-and-play silicon timing solutions that replace bulky RC networks and reduce firmware timing dependencies in space-constrained systems.
FAQ
What is the trigger polarity and retrigger behavior of the LTC6993HS6-3#TRMPBF?
The LTC6993HS6-3#TRMPBF is a falling-edge–triggered, non-retriggerable monostable multivibrator. A falling edge on the TRIG pin initiates a single output pulse of programmable width; subsequent falling edges during the active pulse are ignored until the output completes and re-arms. This behavior is fixed per device variant and cannot be altered by configuration.
How is pulse width programmed on the LTC6993HS6-3#TRMPBF?
Pulse width on the LTC6993HS6-3#TRMPBF is set by two elements: a resistor (RSET) between SET and GND determines the master oscillator period (tMASTER = 1µs × RSET/50kΩ), and the DIV pin voltage selects NDIV (1 to 2,097,152) and output polarity. Final pulse width is tOUT = NDIV × tMASTER, covering 1µs to 33.6 seconds.
What is the operating temperature range and supply voltage specification for the LTC6993HS6-3#TRMPBF?
The LTC6993HS6-3#TRMPBF is specified for continuous operation from –40°C to 125°C ambient temperature and accepts a single supply voltage from 2.25V to 5.5V. Its internal regulation and trimming ensure pulse width accuracy and stability across this full range, with drift as low as ±0.006%/°C for NDIV ≥ 512.
Can the LTC6993HS6-3#TRMPBF generate both positive and negative output pulses?
Yes-the LTC6993HS6-3#TRMPBF supports configurable output polarity via the DIV pin. When DIVCODE's MSB (POL bit) = 0, the OUT pin produces a positive pulse (LOW-to-HIGH-to-LOW); when POL = 1, it produces a negative pulse (HIGH-to-LOW-to-HIGH). Polarity is selected by setting VDIV/V+ to match the target DIVCODE per Table 1 in the datasheet.
What are the key layout considerations for the SET and DIV pins on the LTC6993HS6-3#TRMPBF?
For optimal performance, the SET pin requires ≤10pF total capacitance to minimize jitter and ensure stability; use short traces and avoid nearby switching nodes. The DIV pin must be shielded from the OUT pin and fast edges, with total capacitance <100pF and driving impedance ≤500kΩ (R1||R2). Both pins benefit from 1% or better resistors and guard traces referenced to GND.
LTC6993HS6-3#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
LTC6993HS6-3#TRMPBF FAQ
1.How can I place an order for LTC6993HS6-3#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6993HS6-3#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 LTC6993HS6-3#TRMPBF reliable?
The price and inventory of LTC6993HS6-3#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6993HS6-3#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6993HS6-3#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6993HS6-3#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6993HS6-3#TRMPBF?
LTC6993HS6-3#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6993HS6-3#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 LTC6993HS6-3#TRMPBF?
For technical support, including LTC6993HS6-3#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6993HS6-3#TRMPBF requirements.
6.How does Aetrix verify that LTC6993HS6-3#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6993HS6-3#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 LTC6993HS6-3#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6993HS6-3#TRMPBF?
All LTC6993HS6-3#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6993HS6-3#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 LTC6993HS6-3#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6993HS6-3#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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