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Analog Devices Inc. LTC6993MPS6-3#PBF
- Part No.:
- LTC6993MPS6-3#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Multivibrators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6993MPS6-3#PBF.pdf
- Description:
- IC MONOSTABLE MULTIVIBRATOR
- Quantity:
- Payment:
- Shipping:
Inventory:4,571
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Product details
Overview
LTC6993MPS6-3#PBF from Analog Devices is a monostable multivibrator (one-shot pulse generator) with falling-edge trigger input, non-retriggerable operation, and programmable pulse width from 1µs to 33.6 seconds. It uses a single RSET resistor and DIV pin voltage to set timing via internal master oscillator (1µs base) and 8-step divider (NDIV = 1 to 2²¹). Designed for high-vibration environments and battery-powered systems, it delivers ±4.9% pulse width accuracy at 1µs–8µs and operates from –55°C to 125°C.
For engineers reviewing the LTC6993MPS6-3#PBF datasheet, LTC6993MPS6-3#PBF pinout, LTC6993MPS6-3#PBF application, or LTC6993MPS6-3#PBF equivalent, key selection criteria include falling-edge trigger polarity, non-retrigger behavior, TSOT-23 package compatibility, –55°C to 125°C extended temperature rating, and CMOS output capable of ±20mA drive.
Technical Context
The LTC6993MPS6-3#PBF implements a digitally controlled analog timing architecture: a precision 1V-regulated SET pin controls ISET (1.25µA–20µA), setting tMASTER = 1µs × RSET/50kΩ; a 4-bit V+/GND-referenced A/D converter on the DIV pin selects NDIV (1, 8, 64, ..., 2²¹) and output polarity (POL bit). Its falling-edge trigger logic ignores subsequent triggers until pulse completion, ensuring deterministic one-shot behavior.
Internal hysteresis on TRIG (VIH ≈ 0.7×V+, VIL ≈ 0.3×V+) accommodates slow signal edges. The device features fast propagation delay (11–28ns), sub-500µs startup time, and low 70µA supply current at 10µs pulse width-enabling ultra-low-power timing in portable and automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pulse width range | 1µs to 33.6 seconds - supports both microsecond-level event timing and multi-second watchdog intervals |
| Trigger input polarity | Falling-edge sensitive - initiates output on voltage decrease, ideal for reset or fault-signal detection |
| Retrigger capability | Non-retriggerable - ignores additional triggers during active output, guaranteeing fixed-duration pulses |
| Supply voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V, and 5V systems without level-shifting |
| Operating temperature | –55°C to 125°C - qualified for extended automotive, industrial, and aerospace environments |
| Output drive | ±20mA CMOS - directly drives LEDs, MOSFET gates, or logic inputs without external buffers |
| Pulse width accuracy | ±4.9% at 1µs–8µs; ±3.4% at 8µs–512µs - enables precise timing-critical functions like envelope detection |
Pinout & Package
Package: 6-Lead Plastic TSOT-23 (0.95mm height), RoHS-compliant, lead-free finish. Exposed pad not present; standard SOT-23 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TRIG (Pin 1) | Falling-edge trigger input | Initiates output pulse on voltage transition from high to low; hysteresis ensures noise immunity |
| GND (Pin 2) | Analog/digital ground reference | Low-inductance connection required; bypass V+ to GND with 0.1µF capacitor for stable timing |
| SET (Pin 3) | Pulse width programming node | Sinks ISET (1.25–20µA); connect RSET to GND for accurate, temperature-stable timing |
| OUT (Pin 6) | CMOS output driver | Swings rail-to-rail (GND to V+); sources/sinks 20mA; requires series resistor for LED or low-Z loads |
| V+ (Pin 5) | Power supply input | 2.25V–5.5V operation; must be low-noise; decoupling mandatory for jitter-sensitive applications |
| DIV (Pin 4) | Divider ratio & polarity control | Voltage-programmed 4-bit input (VDIV/V+ = (DIVCODE + 0.5)/16 ±1.5%) sets NDIV and output polarity |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pulse width | 1µs–33.6s via single RSET resistor and DIV pin voltage-no external clock or microcontroller needed |
| Falling-edge trigger | Deterministic activation on signal decay-ideal for fault detection, power-down sequencing, or interrupt synchronization |
| Non-retriggerable operation | Guarantees fixed-duration output regardless of trigger frequency-prevents pulse stretching in noisy environments |
| Extended temperature range | –55°C to 125°C operation with <±0.008%/°C pulse width drift-validated for under-hood automotive and industrial control |
| Ultra-low quiescent current | 65–70µA at 2.25V/800kΩ RSET-enables years of battery life in portable monitoring and sensor wake-up circuits |
Applications
| Watchdog Timer | Missing Pulse Detection |
|---|---|
Use Scenario: Monitors microcontroller activity in automotive ECUs where failure must trigger safe shutdown within strict time windows. IC Role / Device Role / Timing Role: Falling-edge triggered one-shot generates fixed-duration reset pulse when heartbeat signal stops. Use Value: Non-retriggerable behavior ensures reset occurs only after confirmed signal loss-not spurious glitches-meeting ISO 26262 ASIL-B timing integrity requirements. |
Use Scenario: Detects interruption in periodic encoder or sensor signals in motor control systems operating under high vibration. IC Role / Device Role / Timing Role: Configured for ~10ms pulse width; TRIG tied to encoder output; missing edge fails to refresh OUT, flagging fault. Use Value: –55°C to 125°C rating and ±4.9% accuracy at short pulses enable reliable detection even in harsh under-hood conditions. |
| Envelope Detection | High-Vibration Timing |
Use Scenario: Extracts amplitude envelope from RF-modulated carrier signals in portable medical ultrasound transceivers. IC Role / Device Role / Timing Role: One-shot triggered by carrier zero-crossings; pulse width set to match modulation period for peak-hold integration. Use Value: 1µs minimum pulse width and <0.85% peak-to-peak jitter at NDIV=1 enable precise envelope reconstruction without digital processing overhead. |
Use Scenario: Provides timing reference for data acquisition in structural health monitoring sensors mounted on rotating machinery. IC Role / Device Role / Timing Role: Generates synchronized sample-enable pulses immune to EMI-induced false triggers due to falling-edge hysteresis. Use Value: TSOT-23 package and robust TRIG input thresholds (VIH/VIL tracking V+) maintain timing fidelity despite supply ripple and mechanical shock. |
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#TRPBF | Same functionality and pinout; rated for –40°C to 85°C (not –55°C to 125°C) | Not qualified for extended-temperature automotive or aerospace use | Select when full MP-grade temperature range is unnecessary and cost optimization is prioritized |
| TLV3701IPW | Comparator-based one-shot requiring external RC network; no integrated divider or SET regulation | Higher design complexity, larger board area, and reduced accuracy (<±5% typical) vs. integrated solution | Choose only if existing design uses discrete comparators and timing flexibility outweighs calibration burden |
Compared with LTC6993IS6-3#TRPBF, the LTC6993MPS6-3#PBF provides guaranteed operation down to –55°C and up to 125°C-critical for engine control and avionics. Versus TLV3701IPW, it eliminates external component count, improves pulse width accuracy by 2×, and integrates polarity and retrigger configuration into a single voltage-programmed interface.
Availability
LTC6993MPS6-3#PBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial safety monitors, portable medical devices, and aerospace telemetry systems requiring stable component supply across extreme temperature cycles and long product lifecycles.
Supply support for LTC6993MPS6-3#PBF 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#PBF-is engineered for precision silicon timing without crystals or external clocks, targeting applications demanding reliability, small size, and wide temperature operation.
FAQ
What is the trigger polarity and retrigger behavior of the LTC6993MPS6-3#PBF?
The LTC6993MPS6-3#PBF features a falling-edge trigger input and is non-retriggerable-meaning it ignores any additional TRIG transitions while the output pulse is active. This ensures deterministic, fixed-duration timing essential for watchdog and fault-detection circuits. Its behavior matches the LTC6993-3 variant per Analog Devices' datasheet revision F.
What is the minimum and maximum pulse width achievable with the LTC6993MPS6-3#PBF?
The LTC6993MPS6-3#PBF supports pulse widths from 1µs to 33.6 seconds. Minimum width is achieved with NDIV = 1 and RSET = 50kΩ; maximum with NDIV = 2²¹ and RSET = 800kΩ. Accuracy varies by range: ±4.9% (1µs–8µs), ±3.4% (8µs–512µs), and ±2.3% (>512µs).
Which package and temperature grade does the LTC6993MPS6-3#PBF use?
The LTC6993MPS6-3#PBF is housed in a 6-lead Plastic TSOT-23 package and is rated for operation from –55°C to 125°C. This MP-grade qualification makes it suitable for extended automotive, industrial, and aerospace applications where standard industrial or commercial grades fall short.
How is pulse width programmed on the LTC6993MPS6-3#PBF?
Pulse width on the LTC6993MPS6-3#PBF is set using two independent controls: an RSET resistor from SET to GND determines tMASTER (base period), and the DIV pin voltage selects NDIV (divider ratio). The final output width is tOUT = NDIV × RSET / 50kΩ × 1µs. Precision resistors (0.5%, 50ppm/°C) are recommended for best accuracy.
Does the LTC6993MPS6-3#PBF require external components for basic operation?
Yes-the LTC6993MPS6-3#PBF requires at minimum: (1) a 0.1µF ceramic capacitor between V+ and GND for supply decoupling, (2) an RSET resistor from SET to GND to program tMASTER, and (3) a resistor divider on DIV to select NDIV and output polarity. No crystal, PLL, or microcontroller is needed, enabling fully autonomous timing.
LTC6993MPS6-3#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LTC®6993
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Bulk
- 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LTC6993MPS6-3#PBF FAQ
1.How can I place an order for LTC6993MPS6-3#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6993MPS6-3#PBF 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 LTC6993MPS6-3#PBF reliable?
The price and inventory of LTC6993MPS6-3#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6993MPS6-3#PBF is usually 5 days.
3.What payment methods are accepted for LTC6993MPS6-3#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6993MPS6-3#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6993MPS6-3#PBF?
LTC6993MPS6-3#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6993MPS6-3#PBF 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 LTC6993MPS6-3#PBF?
For technical support, including LTC6993MPS6-3#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6993MPS6-3#PBF requirements.
6.How does Aetrix verify that LTC6993MPS6-3#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6993MPS6-3#PBF 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 LTC6993MPS6-3#PBF meets industry standards.
7.What is the process for return or replacement of LTC6993MPS6-3#PBF?
All LTC6993MPS6-3#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6993MPS6-3#PBF, 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 LTC6993MPS6-3#PBF part is unused and in its original packaging.
Return procedure for LTC6993MPS6-3#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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