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Analog Devices Inc. LTC6993IS6-2#TRPBF
- Part No.:
- LTC6993IS6-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Multivibrators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6993IS6-2#TRPBF.pdf
- Description:
- IC MULTIVIBRATOR 11NS TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,429
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Product details
Overview
LTC6993IS6-2#TRPBF from Analog Devices is a retriggerable rising-edge monostable multivibrator (one-shot) in TSOT-23-6 package, delivering programmable pulse widths from 1µs to 33.6 seconds via RSET resistor and DIV pin voltage. It operates from 2.25V to 5.5V, draws 70µA at 10µs pulse width, and drives ±20mA CMOS output - used in missing-pulse detection, watchdog timers, and envelope detection in battery-powered industrial sensors.
For engineers reviewing the LTC6993IS6-2#TRPBF datasheet, LTC6993IS6-2#TRPBF pinout, LTC6993IS6-2#TRPBF application, or LTC6993IS6-2#TRPBF equivalent, key selection criteria include retrigger capability, NDIV programmability (1–2²¹), ±20mA drive strength, –40°C to 85°C temperature grade, and SOT-23 footprint compatibility with layout-constrained embedded timing circuits.
Technical Context
The LTC6993IS6-2#TRPBF implements a master oscillator with 1µs base period, whose frequency is set by ISET current sourced from the SET pin (VSET = 1.00V ±30mV). Pulse width tOUT = NDIV × RSET/50kΩ × 1µs, where NDIV is selected via 4-bit A/D conversion of VDIV on the DIV pin (0–15), determining both division ratio and output polarity.
It features rising-edge TRIG input with hysteresis (VIH ≈ 0.7×V+, VIL ≈ 0.3×V+), retrigger logic that extends tOUT on successive triggers (minimum tRETRIG = 10ns at V+ = 3.3V), and fast recovery (tARM = –4ns for non-retrigger variants, not applicable here). Output rise/fall times are 1.1ns/1.0ns at V+ = 5.5V with 5pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pulse Width Range | 1µs to 33.6 seconds - enables single-chip timing across microsecond watchdogs and multi-second system reset delays |
| Supply Voltage | 2.25V to 5.5V - supports direct interface with Li-ion, 3.3V, and 5V logic without level-shifting |
| Supply Current | 70µA at 10µs pulse width (V+ = 2.25V, RSET = 800kΩ) - enables decade-long operation in coin-cell-powered IoT endpoints |
| Output Drive | ±20mA CMOS - directly drives LEDs, MOSFET gates, or logic inputs without external buffers |
| Timing Accuracy | ±2.3% for tOUT > 512µs - ensures reliable pulse-width-dependent decisions in safety-critical missing-pulse detection |
| Operating Temp | –40°C to +85°C - qualified for industrial control and automotive cabin electronics environments |
| Package | TSOT-23-6 (1mm height) - fits high-density PCBs where DFN is mechanically unsuitable |
Pinout & Package
Package: 6-Lead Plastic TSOT-23 (1mm profile), RoHS-compliant, lead-free finish. Exposed pad optional; no thermal pad connection required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TRIG (Pin 1) | Rising-edge trigger input | Initiates output pulse on each rising edge; retriggerable - successive edges extend tOUT until last trigger + tOUT |
| GND (Pin 2) | Analog/digital ground reference | Low-inductance return path for SET, TRIG, and output; must connect to solid ground plane |
| SET (Pin 3) | Pulse width programming node | Sinks ISET = VSET/RSET (VSET = 1.00V); RSET = 50kΩ–800kΩ sets tMASTER = 1µs × RSET/50kΩ |
| DIV (Pin 4) | Divider ratio & polarity control | Voltage divider input (VDIV/V+ = (DIVCODE + 0.5)/16 ±1.5%) selects NDIV (1–2²¹) and output polarity (POL bit) |
| V+ (Pin 5) | Power supply | 2.25V–5.5V input; requires 0.1µF ceramic bypass capacitor directly to GND |
| OUT (Pin 6) | CMOS output driver | Swings rail-to-rail (GND to V+); sources/sinks 20mA; configured as positive or negative pulse per DIVCODE |
Key Features
| Feature | Design Value |
|---|---|
| Retriggerable one-shot operation | Enables dynamic pulse extension in real-time systems - e.g., extending timeout during ongoing sensor activity |
| Programmable NDIV up to 2²¹ | Extends minimum pulse width resolution to 1µs while supporting 33.6s maximum - eliminates need for external counters |
| 1V-regulated SET pin | Removes V+ dependency from tOUT calculation when using RSET; pulse width depends only on RSET tolerance and ∆tOUT spec |
| Output polarity selection | Configurable positive/negative pulses via DIV pin voltage - simplifies interface with inverted logic or active-low reset circuits |
| Ultra-low quiescent current | As low as 55µA (V+ = 2.25V, RSET = 800kΩ, NDIV ≥ 512) - critical for energy harvesting and battery longevity |
Applications
| Watchdog Timer | Missing Pulse Detection |
|---|---|
|
Use Scenario: Monitors microcontroller activity in industrial PLCs; asserts hardware reset if no periodic "kick" signal arrives within timeout window. IC Role / Device Role / Timing Role: Retriggerable monostable generating precise reset pulse upon missed trigger edge. Use Value: Eliminates software-based watchdogs vulnerable to lockup; tOUT accuracy ±2.3% ensures deterministic fail-safe behavior. |
Use Scenario: Detects interruption in periodic encoder signals or clock streams in motor control feedback loops. IC Role / Device Role / Timing Role: Rising-edge triggered one-shot that stays active only while pulses arrive at expected intervals. Use Value: Fast tRETRIG (10ns) allows detection of sub-microsecond gaps; ±20mA output drives reset logic directly. |
| Envelope Detection | High-Vibration Sensor Interface |
|
Use Scenario: Extracts amplitude envelope from modulated RF carrier in wireless sensor nodes (e.g., ultrasonic distance sensing). IC Role / Device Role / Timing Role: Converts burst-triggered carrier into clean, width-modulated output pulse proportional to signal duration. Use Value: 1µs–33.6s range covers carrier bursts from short radar chirps to long telemetry frames; low jitter (<0.85% P-P) preserves envelope fidelity. |
Use Scenario: Provides robust timing in shock-prone environments like engine control units or industrial robotics. IC Role / Device Role / Timing Role: Generates stable delay/reset pulses immune to mechanical vibration-induced noise on PCB traces. Use Value: –40°C to +85°C rating and 70µA supply current ensure reliability under thermal cycling and power constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar monostable timing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3012IDBVR | Comparator-based one-shot; requires external RC network; no built-in NDIV or retrigger logic | Lower integration; needs discrete components for pulse width tuning and retriggering | Choose when cost sensitivity outweighs board space and design time; not suitable for wide tOUT range or precision timing |
| MAX6816EUT+T | Dedicated debouncer IC; fixed 10ms/20ms/40ms delays; no programmable tOUT or retrigger capability | Targeted at switch bounce suppression only; lacks general-purpose pulse generation flexibility | Use only for simple pushbutton debouncing; cannot replace LTC6993IS6-2#TRPBF in adaptive timing or envelope detection |
Compared with TLV3012IDBVR and MAX6816EUT+T, the LTC6993IS6-2#TRPBF delivers single-chip programmability across seven decades of pulse width, integrated retrigger logic, and rail-to-rail drive - reducing BOM count and enabling adaptive timing architectures impossible with fixed or comparator-based alternatives.
Availability
LTC6993IS6-2#TRPBF is available at Aetrix Electronics and suitable for industrial automation, automotive cabin electronics, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6993IS6-2#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The TimerBlox® family - including LTC6993IS6-2#TRPBF - was designed to replace discrete 555-based timing circuits with pin-configurable, temperature-stable silicon solutions for embedded timing, pulse generation, and system supervision.
FAQ
What is the trigger input behavior of the LTC6993IS6-2#TRPBF?
The LTC6993IS6-2#TRPBF features a rising-edge sensitive TRIG input with hysteresis (VIH ≈ 0.7×V+, VIL ≈ 0.3×V+), enabling reliable triggering on slow or noisy signals. As a retriggerable variant, it extends the output pulse width on each subsequent rising edge - making LTC6993IS6-2#TRPBF ideal for applications requiring dynamic timeout extension, such as activity-based system wake-up.
How do I set a 100ms output pulse width on the LTC6993IS6-2#TRPBF?
To achieve 100ms output pulse width, select NDIV = 64 (DIVCODE = 2, VDIV/V+ = 0.15625 ±1.5%) and calculate RSET = (tOUT × 50kΩ) / (NDIV × 1µs) = (100ms × 50kΩ) / (64 × 1µs) ≈ 78.1kΩ. Use a 78.7kΩ, 0.5% metal-film resistor from SET to GND. Confirm VSET = 1.00V ±30mV and verify tOUT accuracy is ±3.4% for this NDIV range.
Does the LTC6993IS6-2#TRPBF support negative output pulses?
Yes, the LTC6993IS6-2#TRPBF supports configurable output polarity via the DIV pin. When DIVCODE = 8–15 (VDIV/V+ ≥ 0.53125), the POL bit = 1 and OUT generates a negative pulse (active-low). For example, DIVCODE = 8 yields NDIV = 2,097,152 and negative polarity - allowing LTC6993IS6-2#TRPBF to directly drive active-low reset lines without external inverters.
What is the minimum supply voltage for reliable operation of the LTC6993IS6-2#TRPBF?
The LTC6993IS6-2#TRPBF operates reliably down to 2.25V over its full –40°C to +85°C temperature range. At 2.25V, supply current drops to 55–70µA depending on RSET and NDIV, and output VOH remains ≥1.58V (IOUT = –8mA), ensuring TTL/CMOS compatibility. The internal POR activates above 1.95V, guaranteeing predictable startup.
Can the LTC6993IS6-2#TRPBF be used in automotive applications?
The LTC6993IS6-2#TRPBF is rated for –40°C to +85°C and is not AEC-Q100 qualified. For automotive use, Analog Devices offers the automotive-grade LTC6993IS6-2#WTRPBF (marked with #W suffix), which undergoes controlled manufacturing and reliability testing per AEC-Q100. Standard LTC6993IS6-2#TRPBF is suitable for cabin electronics but not under-hood applications.
LTC6993IS6-2#TRPBF 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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LTC6993IS6-2#TRPBF FAQ
1.How can I place an order for LTC6993IS6-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6993IS6-2#TRPBF 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 LTC6993IS6-2#TRPBF reliable?
The price and inventory of LTC6993IS6-2#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6993IS6-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6993IS6-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6993IS6-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6993IS6-2#TRPBF?
LTC6993IS6-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6993IS6-2#TRPBF 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 LTC6993IS6-2#TRPBF?
For technical support, including LTC6993IS6-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6993IS6-2#TRPBF requirements.
6.How does Aetrix verify that LTC6993IS6-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6993IS6-2#TRPBF 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 LTC6993IS6-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6993IS6-2#TRPBF?
All LTC6993IS6-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6993IS6-2#TRPBF, 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 LTC6993IS6-2#TRPBF part is unused and in its original packaging.
Return procedure for LTC6993IS6-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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