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Analog Devices Inc. LTC6993CDCB-1#TRPBF
- Part No.:
- LTC6993CDCB-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Multivibrators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6993CDCB-1#TRPBF.pdf
- Description:
- IC MULTIVIBRATOR 11NS 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,929
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Product details
Overview
LTC6993CDCB-1#TRPBF from Analog Devices is a monostable multivibrator (one-shot pulse generator) with programmable pulse width from 1µs to 33.6 seconds, rising-edge non-retriggerable trigger input, CMOS output sourcing/sinking 20mA, and operates from 2.25V to 5.5V supply. It is used in missing pulse detection, watchdog timer circuits, and envelope detection in high-vibration environments.
For engineers reviewing the LTC6993CDCB-1#TRPBF datasheet, LTC6993CDCB-1#TRPBF pinout, LTC6993CDCB-1#TRPBF application, or LTC6993CDCB-1#TRPBF equivalent, key selection criteria include trigger polarity (rising-edge), retrigger capability (non-retriggerable), pulse width accuracy (±4.9% at NDIV = 1), temperature range (0°C to 70°C), and DFN package compatibility.
Technical Context
The LTC6993CDCB-1#TRPBF implements a master oscillator with 1µs base period controlled by ISET current sourced from the SET pin, combined with an internal 4-bit A/D converter on the DIV pin to select NDIV (1–221) and output polarity. Its timing architecture uses resistor-programmed RSET (50kΩ–800kΩ) and voltage-coded DIV pin to define tOUT = NDIV × RSET/50kΩ × 1µs.
It features hysteresis on TRIG (VIH ≈ 0.7×V+, VIL ≈ 0.3×V+), fast propagation delay (11ns at 5.5V), and low jitter (0.45%P-P at NDIV = 1, V+ = 2.25V). The device includes power-on reset (1.95V threshold) and maintains VSET at 1.00V ±30mV via internal regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pulse width range | 1µs to 33.6 seconds - supports ultra-low-frequency timing and long-duration timeouts without external RC networks. |
| Trigger input | Rising-edge, non-retriggerable - ensures single-pulse response per valid edge; ignores subsequent triggers until output completes. |
| Supply voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V, and 5V systems; enables direct interface with microcontrollers and logic families. |
| Output drive | CMOS, ±20mA - directly drives LEDs, MOSFET gates, or logic inputs without external buffers. |
| Accuracy (NDIV = 1) | ±4.9% max error for 1µs–8µs pulses - specified over full temperature range; critical for precision one-shot applications. |
| Operating temp | 0°C to 70°C - commercial-grade specification suitable for industrial control panels and portable equipment. |
| Package | 6-lead (2mm × 3mm) DFN - low-profile surface-mount footprint with exposed pad for thermal management. |
Pinout & Package
6-lead plastic DFN (2mm × 3mm), thin profile (1mm height), exposed thermal pad connected to GND. Pin 7 is exposed pad (GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TRIG (Pin 1) | Trigger input | Rising-edge sensitive digital input; initiates output pulse; requires ≥5ns minimum pulse width at 3.3V. |
| 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 (1.25µA–20µA); sets master oscillator period via RSET resistor to GND. |
| DIV (Pin 4) | Divider and polarity control | Voltage-coded input (0–V+) selecting NDIV (1–221) and output polarity (POL bit) via internal 4-bit A/D. |
| V+ (Pin 5) | Power supply | 2.25V–5.5V analog/digital supply; requires 0.1µF ceramic bypass capacitor directly to GND. |
| OUT (Pin 6) | Output driver | CMOS rail-to-rail output; sources/sinks up to 20mA; swing limited by V+ and GND rails. |
Key Features
| Feature | Design Value |
|---|---|
| Resistor-programmed timing | Single RSET (50kΩ–800kΩ) sets base period; eliminates timing capacitor drift and aging effects. |
| Programmable divider | Eight NDIV options (1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹) extend pulse width range by factor of >2 million. |
| Dynamic pulse width control | Voltage applied to DIV pin allows real-time adjustment of tOUT and output polarity without changing RSET. |
| Low quiescent current | 65µA typical at 2.25V/800kΩ/NDIV ≥ 512 - extends battery life in portable and remote sensor applications. |
| Fast recovery & startup | 500µs start-up time and <4ns recovery (tARM) enable rapid response in burst-mode or event-driven systems. |
Applications
| Missing Pulse Detection | Watchdog Timer |
|---|---|
Use Scenario: Monitoring serial data streams or periodic sensor readings where absence of expected pulses indicates system fault. IC Role / Device Role / Timing Role: LTC6993CDCB-1#TRPBF acts as a windowed timeout detector; outputs active-low pulse only when input trigger stops arriving within programmed interval. Use Value: Detects communication failures or sensor freezes with 1µs–33.6s adjustable sensitivity, eliminating need for microcontroller polling. | Use Scenario: Ensuring microcontroller or FPGA remains operational in safety-critical embedded systems. IC Role / Device Role / Timing Role: LTC6993CDCB-1#TRPBF serves as independent hardware watchdog; resets system if host fails to issue periodic "kick" signal before timeout expires. Use Value: Provides fail-safe reset generation with ±4.9% timing accuracy at shortest pulse widths, independent of software execution. |
| Envelope Detection | High-Vibration Environments |
Use Scenario: Extracting amplitude modulation envelope from RF carrier signals in wireless receivers or ultrasound transceivers. IC Role / Device Role / Timing Role: LTC6993CDCB-1#TRPBF functions as gated integrator trigger; generates precise-width gate pulses synchronized to carrier zero-crossings. Use Value: Enables analog envelope reconstruction using simple RC filters, with timing stability unaffected by supply ripple or temperature drift. | Use Scenario: Timing control in automotive engine control units, industrial shock sensors, or aerospace telemetry where mechanical vibration disrupts crystal-based oscillators. IC Role / Device Role / Timing Role: LTC6993CDCB-1#TRPBF delivers robust monostable timing using silicon oscillator architecture immune to mechanical stress and acceleration. Use Value: Maintains ±0.008%/°C pulse width drift (NDIV ≤ 64) and operates from –55°C to 125°C in MP-grade variants, ensuring reliability under extreme conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar monostable timing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6993IDCB-1#TRPBF | Wider operating temperature range (–40°C to 85°C); identical electrical specs and pinout. | Suitable for extended-temperature industrial or outdoor deployments where ambient exceeds 70°C. | Select when board-level thermal environment exceeds 70°C; no layout or firmware changes required. |
| NE555DR | Fixed 1.1×R×C timing; higher supply current (>3mA); no programmable divider; bipolar process limits accuracy and voltage range. | Legacy designs requiring low-cost, non-precision timing; incompatible with sub-10µs pulses or 2.25V operation. | Choose only for cost-sensitive, non-critical timing where ±15% accuracy and 4.5V–16V supply are acceptable. |
Compared with LTC6993IDCB-1#TRPBF, the LTC6993CDCB-1#TRPBF offers lower cost and smaller footprint for commercial-temperature applications, while the NE555DR lacks programmable division, precision, and low-voltage support - making it unsuitable for modern battery-powered or high-accuracy systems.
Availability
LTC6993CDCB-1#TRPBF is available at Aetrix Electronics and suitable for missing pulse detection, watchdog timer circuits, and envelope detection requiring stable component supply across production volumes and design lifecycles.
Supply support for LTC6993CDCB-1#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.
The TimerBlox® family, including LTC6993CDCB-1#TRPBF, was designed to replace discrete RC timers and 555-based circuits with highly accurate, resistor-programmable silicon timing solutions for space-constrained and low-power applications.
FAQ
What is the trigger behavior of the LTC6993CDCB-1#TRPBF?
The LTC6993CDCB-1#TRPBF has a rising-edge sensitive, non-retriggerable trigger input. A single rising edge on the TRIG pin initiates one output pulse; subsequent rising edges during the active pulse are ignored until the output completes and a short rearming time (tARM < 4ns) elapses. This ensures deterministic single-shot operation essential for watchdog and fault-detection applications.
How do I set the pulse width for the LTC6993CDCB-1#TRPBF?
To set the pulse width for the LTC6993CDCB-1#TRPBF, connect a precision resistor (RSET, 50kΩ–800kΩ) between the SET pin and GND to program the master oscillator period, then configure the DIV pin voltage to select NDIV (1–221) and output polarity. The resulting tOUT = NDIV × RSET/50kΩ × 1µs. For example, RSET = 100kΩ and DIVCODE = 3 yields tOUT = 512 × 100k/50k × 1µs = 10.24ms.
Does the LTC6993CDCB-1#TRPBF require external capacitors for timing?
No, the LTC6993CDCB-1#TRPBF does not require external timing capacitors. Its pulse width is set entirely by external resistors: RSET on the SET pin determines the master oscillator period, and a resistor divider on the DIV pin selects the division ratio (NDIV) and output polarity. This eliminates capacitor-related drift, aging, and temperature sensitivity inherent in RC-based timers.
What is the maximum output current drive capability of the LTC6993CDCB-1#TRPBF?
The LTC6993CDCB-1#TRPBF provides CMOS rail-to-rail output with guaranteed ±20mA drive capability at V+ = 2.7V to 5.5V. At V+ = 3.3V, VOH is 2.75V (min) at –10mA sink and VOL is 0.46V (max) at +10mA source. This allows direct driving of LEDs, small relays, MOSFET gates, or standard logic inputs without external buffers.
Can the LTC6993CDCB-1#TRPBF operate from a 2.5V supply?
Yes, the LTC6993CDCB-1#TRPBF operates from 2.25V to 5.5V, fully specified down to 2.25V. At 2.5V supply, it maintains 70µA typical supply current (idle, RSET = 800kΩ, NDIV ≥ 512), 1.88V VOL (max) at +8mA, and 1.58V VOH (min) at –8mA - enabling reliable use in single-cell Li-ion or low-power IoT node designs.
LTC6993CDCB-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LTC®6993
- Package/Case:
- 6-WFDFN Exposed Pad
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x3)
LTC6993CDCB-1#TRPBF FAQ
1.How can I place an order for LTC6993CDCB-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6993CDCB-1#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 LTC6993CDCB-1#TRPBF reliable?
The price and inventory of LTC6993CDCB-1#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6993CDCB-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6993CDCB-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6993CDCB-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6993CDCB-1#TRPBF?
LTC6993CDCB-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6993CDCB-1#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 LTC6993CDCB-1#TRPBF?
For technical support, including LTC6993CDCB-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6993CDCB-1#TRPBF requirements.
6.How does Aetrix verify that LTC6993CDCB-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6993CDCB-1#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 LTC6993CDCB-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6993CDCB-1#TRPBF?
All LTC6993CDCB-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6993CDCB-1#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 LTC6993CDCB-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC6993CDCB-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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