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Analog Devices Inc. LTC6993HDCB-1#TRPBF
- Part No.:
- LTC6993HDCB-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Multivibrators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6993HDCB-1#TRPBF.pdf
- Description:
- IC MULTIVIBRATOR 11NS 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,866
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Product details
Overview
LTC6993HDCB-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, and CMOS output sourcing/sinking 20mA. It operates from 2.25V to 5.5V, consumes 70µA at 10µs pulse width, and is qualified for –40°C to 125°C automotive-grade operation in a 6-lead 2mm × 3mm DFN package.
For engineers reviewing the LTC6993HDCB-1#TRPBF datasheet, LTC6993HDCB-1#TRPBF pinout, LTC6993HDCB-1#TRPBF application, or LTC6993HDCB-1#TRPBF equivalent, key selection criteria include pulse width accuracy (±2.3% for >512µs), NDIV programmability via DIV pin resistor divider, SET pin current-based timing control, and guaranteed operation across extended temperature range without derating.
Technical Context
The LTC6993HDCB-1#TRPBF implements a master oscillator with 1µs base period, whose frequency is set by ISET current sourced from the SET pin (1.25µA–20µA), regulated to maintain VSET = 1.00V ±30mV. Pulse width tOUT = NDIV × RSET/50kΩ × 1µs, where NDIV is selected from eight values (1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹) via a 4-bit A/D converter on the DIV pin.
It features hysteresis on the TRIG input (VIH ≈ 0.7×V+, VIL ≈ 0.3×V+), 11ns propagation delay at 5.5V, and fast recovery (tARM = –4ns). Output polarity is configurable via the POL bit in DIVCODE, and the device includes power-on reset with 1.95V threshold and 500µs startup time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pulse width range | 1µs to 33.6 seconds - supports ultra-short timing events and long-duration timeouts without external RC networks. |
| Pulse width accuracy | ±2.3% for tOUT > 512µs - enables precise timing-critical functions like watchdog timeout validation. |
| Supply voltage | 2.25V to 5.5V - compatible with Li-ion, 3.3V, and 5V systems without level-shifting. |
| Quiescent current | 70µA at 10µs pulse width and 2.25V supply - extends battery life in portable equipment. |
| Operating temperature | –40°C to 125°C - meets AEC-Q100 Grade H requirements for under-hood automotive applications. |
| Output drive | ±20mA CMOS output - directly drives LEDs, logic inputs, or small MOSFET gates without buffering. |
| Trigger type | Rising-edge, non-retriggerable - ensures single-pulse response per event, preventing unintended pulse extension. |
Pinout & Package
Package: 6-lead (2mm × 3mm) plastic DFN (DCB), exposed pad connected to GND. RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TRIG (Pin 1) | Trigger input | Rising-edge sensitive; initiates output pulse; requires ≥5ns minimum pulse width at 3.3V. |
| GND (Pin 2) | Ground reference | Low-inductance ground plane connection required; exposed pad must be tied to GND for thermal and electrical performance. |
| SET (Pin 3) | Pulse width programming | Sources ISET current (1.25–20µA); VSET regulated to 1.00V ±30mV; capacitance <10pF required for low jitter. |
| DIV (Pin 4) | Divider and polarity control | 4-bit A/D input; sets NDIV (1–2²¹) and output polarity (POL bit); VDIV/V+ = (DIVCODE + 0.5)/16 ±1.5%. |
| V+ (Pin 5) | Power supply | 2.25V–5.5V operation; bypass with 0.1µF capacitor directly to GND pin. |
| OUT (Pin 6) | CMOS output | Swings rail-to-rail (GND to V+); 30Ω typical output resistance; sources/sinks 20mA; rise/fall times <2.7ns at 2.25V. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pulse width | 1µs–33.6s using one external resistor (RSET) and one divider network (R1/R2), eliminating need for precision capacitors or trimmers. |
| Temperature-stable timing | ±0.006%/°C pulse width drift (NDIV ≥ 512) - maintains accuracy over full –40°C to 125°C range without calibration. |
| Supply-insensitive operation | ≤0.9% pulse width change over 2.25V–5.5V supply range - eliminates supply regulation in low-power designs. |
| Fast, deterministic startup | 500µs maximum startup time - enables rapid system wake-up and timing initialization after power-on or reset. |
| Configurable output polarity | Positive or negative pulse via DIV pin programming - supports both active-high and active-low interface requirements without external inverters. |
Applications
| Watchdog Timer | Missing Pulse Detection |
|---|---|
Use Scenario: Monitors microcontroller activity in automotive engine control units to initiate safe shutdown if software hangs. IC Role / Device Role / Timing Role: Generates fixed-duration timeout pulse triggered by periodic MCU heartbeat signal. Use Value: Guarantees fail-safe response within 33.6s max timeout, validated across –40°C to 125°C with ±2.3% accuracy. | Use Scenario: Detects failure of periodic sensor signals (e.g., crankshaft position pulses) in industrial motion controllers. IC Role / Device Role / Timing Role: One-shot triggered by each valid pulse; output remains high only if next pulse arrives before timeout expires. Use Value: Identifies missing pulses as short as 1µs with no external timing components, reducing BOM count and board space. |
| Envelope Detection | High-Vibration Timing |
Use Scenario: Extracts amplitude envelope from RF-modulated carrier signals in battery-powered IoT transceivers. IC Role / Device Role / Timing Role: Generates gated output pulse synchronized to carrier burst duration, enabling peak detection and demodulation. Use Value: Achieves 16µs pulse resolution (per typical application diagram) with 70µA quiescent current, extending sensor node battery life. | Use Scenario: Provides reliable timing in aerospace inertial measurement units subject to shock (>100g) and wide thermal cycling. IC Role / Device Role / Timing Role: Generates stable clock enable or sampling window signals immune to mechanical stress-induced parameter shift. Use Value: Maintains ±2.3% pulse width accuracy over –40°C to 125°C and survives 150°C junction temperature, ensuring mission-critical timing integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar monostable timing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6993HDCB-2#TRPBF | Rising-edge retriggerable; identical package, temperature grade, and timing architecture. | Supports extended pulse generation via repeated triggers; unsuitable where strict one-shot behavior is required. | Select LTC6993HDCB-2#TRPBF only when pulse extension during ongoing events is needed. |
| LTC6993HDCB-3#TRPBF | Falling-edge non-retriggerable; same DFN package and –40°C to 125°C rating. | Requires inverted trigger signal; used where upstream logic naturally provides falling-edge assertion. | Choose LTC6993HDCB-3#TRPBF when system-level trigger polarity matches falling-edge requirement. |
Compared with LTC6993HDCB-2#TRPBF and LTC6993HDCB-3#TRPBF, the LTC6993HDCB-1#TRPBF uniquely delivers rising-edge, non-retriggerable timing in an automotive-grade DFN-enabling deterministic single-pulse response critical for safety-critical watchdog and fault-detection circuits without layout or firmware changes.
Availability
LTC6993HDCB-1#TRPBF is available at Aetrix Electronics and suitable for automotive engine control, industrial safety monitoring, battery-powered IoT sensors, and high-reliability timing applications requiring stable component supply across extended temperature ranges.
Supply support for LTC6993HDCB-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 LTC6993HDCB-1#TRPBF-is designed for precision, low-power, and configuration-flexible silicon timing solutions that replace discrete RC timers and reduce design complexity in space-constrained systems.
FAQ
What is the maximum pulse width achievable with LTC6993HDCB-1#TRPBF?
The LTC6993HDCB-1#TRPBF supports a maximum pulse width of 33.6 seconds, achieved when NDIV = 2²¹ and RSET = 800kΩ. This value is specified in the Electrical Characteristics table and confirmed across the full –40°C to 125°C operating range. The timing equation tOUT = NDIV × RSET/50kΩ × 1µs governs all pulse widths, and the device maintains ±2.3% accuracy for outputs longer than 512µs.
How does the SET pin function in LTC6993HDCB-1#TRPBF?
The SET pin of LTC6993HDCB-1#TRPBF sources a precision current (ISET) that controls the master oscillator frequency. A resistor (RSET) between SET and GND sets ISET = VSET/RSET, where VSET is internally regulated to 1.00V ±30mV. This architecture makes pulse width independent of VSET drift, relying only on RSET tolerance and inherent IC accuracy. For best results, use a 0.5% metal-film resistor with ≤50ppm/°C TC.
Can LTC6993HDCB-1#TRPBF operate from a 2.5V supply?
Yes, LTC6993HDCB-1#TRPBF is fully specified for operation from 2.25V to 5.5V. At 2.5V, it delivers 70µA supply current (idle, RSET = 800kΩ), 2.7ns output rise time, and maintains ±2.3% pulse width accuracy for tOUT > 512µs. All electrical characteristics-including VIH/VIL thresholds, output drive, and timing jitter-are validated down to 2.25V per the Rev. F datasheet.
What is the purpose of the DIV pin on LTC6993HDCB-1#TRPBF?
The DIV pin on LTC6993HDCB-1#TRPBF connects to an internal 4-bit A/D converter that sets two parameters: the frequency divider ratio (NDIV = 1, 8, 64, ..., 2²¹) and the output polarity (POL bit). A resistor divider between V+ and GND generates VDIV, where VDIV/V+ = (DIVCODE + 0.5)/16 ±1.5%. This allows full configuration of timing range and active-high/active-low output using only passive components.
Is LTC6993HDCB-1#TRPBF qualified for automotive applications?
Yes, LTC6993HDCB-1#TRPBF carries the "H" temperature grade and is AEC-Q100 qualified for automotive applications. It is guaranteed to meet all specifications over –40°C to 125°C, with junction temperature rated to 150°C. The DFN package includes an exposed pad for thermal dissipation, and the device undergoes automotive-specific reliability testing including HTOL, ESD, and temperature cycling.
LTC6993HDCB-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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x3)
LTC6993HDCB-1#TRPBF FAQ
1.How can I place an order for LTC6993HDCB-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6993HDCB-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 LTC6993HDCB-1#TRPBF reliable?
The price and inventory of LTC6993HDCB-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 LTC6993HDCB-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6993HDCB-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6993HDCB-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6993HDCB-1#TRPBF?
LTC6993HDCB-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6993HDCB-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 LTC6993HDCB-1#TRPBF?
For technical support, including LTC6993HDCB-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6993HDCB-1#TRPBF requirements.
6.How does Aetrix verify that LTC6993HDCB-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6993HDCB-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 LTC6993HDCB-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6993HDCB-1#TRPBF?
All LTC6993HDCB-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6993HDCB-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 LTC6993HDCB-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC6993HDCB-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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