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Analog Devices Inc. LTC6995IS6-1#TRPBF
- Part No.:
- LTC6995IS6-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6995IS6-1#TRPBF.pdf
- Description:
- IC OSC SILICON PROG TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,371
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Product details
Overview
LTC6995IS6-1#TRPBF from Analog Devices is a silicon-based programmable low-frequency oscillator IC designed for long-duration timing events in embedded systems. It delivers output periods from 1.024ms to 9.54 hours (29.1µHz–977Hz), features active-high reset, 50% duty cycle CMOS output, ±1.5% max frequency accuracy over temperature, and operates from 2.25V to 5.5V supply. It is used in automotive-grade watchdog timers and power-on reset circuits requiring stable, ultra-low-power timing.
For engineers reviewing the LTC6995IS6-1#TRPBF datasheet, LTC6995IS6-1#TRPBF pinout, LTC6995IS6-1#TRPBF application, or LTC6995IS6-1#TRPBF equivalent, this page provides verified specifications, SOT-23-6 package details, reset polarity behavior, DIVCODE-programmable divider settings (NDIV = 1 to 2²¹), and real-world timing use cases including wake-up call generation and heartbeat monitoring in harsh environments.
Technical Context
The LTC6995IS6-1#TRPBF implements a master oscillator (1MHz max) controlled by SET pin current (ISET = VSET/RSET, VSET = 1.00V ±30mV), followed by a fixed ÷1024 divider and an 8-step programmable divider (NDIV = 1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹). Its internal 4-bit A/D converter reads DIV pin voltage (VDIV/V+ = (DIVCODE + 0.5)/16 ±1.5%) to set both NDIV and output polarity (POL bit).
Reset functionality is active-high (LTC6995-1 variant), halting the master oscillator and clearing internal dividers; release initiates a full half-period delay before oscillation resumes. Start-up time is 500 × tMASTER (typ. 500µs at RSET = 50kΩ), with POR threshold at 1.4V (1.2V–1.5V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output period range | 1.024ms to 34,360s (9.54hr); enables single-component long-interval timing without external RC networks |
| Frequency accuracy | ±1.5% max over –40°C to +85°C; ensures reliable timing across industrial temperature range |
| Supply voltage | 2.25V to 5.5V; supports direct interface with 3.3V and 5V logic rails and battery-backed operation |
| Supply current | 55µA to 135µA (depending on RSET and V+); enables multi-year battery life in low-duty-cycle wake-up applications |
| Reset input | Active-high, with hysteresis (VRST(H) ≈ 0.55·V+ + 185mV); tolerates slow-rising power rails and noisy control signals |
| Output drive | CMOS, ±20mA sink/source at V+ = 2.25–5.5V; directly drives LEDs, logic inputs, or small MOSFET gates without buffer |
| Operating temp | –40°C to +85°C (I-grade); qualified for under-hood automotive and industrial control environments |
Pinout & Package
Package: 6-lead TSOT-23 (S6), 1mm profile, RoHS-compliant, lead-free finish. Exposed pad not present in S6 variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | 2.25V–5.5V rail; must be bypassed to GND with 0.1µF capacitor for stable oscillator operation |
| GND | Ground reference | Low-inductance return path for SET, DIV, and output driver; critical for jitter performance |
| SET | Frequency-setting input | Regulated to 1.00V; ISET = 1.00V/RSET programs master oscillator (RSET = 50kΩ–800kΩ) |
| RST | Active-high reset input | Halts oscillator and clears dividers; release triggers precise half-period startup delay |
| DIV | Divider/polarity programming input | Voltage divider input read by internal 4-bit A/D; sets NDIV and output polarity (POL bit) |
| OUT | CMOS square-wave output | 50% duty cycle, rail-to-rail swing; sinks/supplies up to 20mA; no external pull-up required |
Key Features
| Feature | Design Value |
|---|---|
| Programmable period range | 1.024ms–9.54hr via single RSET resistor and DIV pin voltage - eliminates need for multiple timing capacitors |
| Reset-initiated half-cycle delay | Guaranteed ½tOUT startup after reset release - enables deterministic power-on reset and watchdog timeout alignment |
| Temperature-stable VSET regulation | 1.00V ±30mV over –40°C to +85°C - removes VSET drift as error source when using RSET |
| Glitch-free DIVCODE update | Internal digital filter ensures NDIV changes occur cleanly within <500×tMASTER - prevents spurious pulses during runtime reconfiguration |
| AEC-Q100 qualified | Qualified per AEC-Q100 Rev H for automotive applications - supports deployment in engine control, ADAS, and body electronics |
Applications
| Power-On Reset Timer | Watchdog Timer |
|---|---|
Use Scenario: Ensures microcontroller remains held in reset until power rail stabilizes and clock sources are ready. IC Role / Device Role / Timing Role: Generates precise, user-configurable reset pulse width (1.024ms–9.54hr) triggered by rising V+. Use Value: Eliminates discrete RC network drift and improves reset timing repeatability across temperature and voltage. | Use Scenario: Monitors firmware execution in safety-critical systems (e.g., automotive ECUs) and triggers recovery if no refresh occurs. IC Role / Device Role / Timing Role: Provides long, stable timeout interval (e.g., 1–60 seconds) with active-high reset input synchronized to system reset logic. Use Value: Reduces BOM count vs. discrete timer solutions while meeting AEC-Q100 reliability requirements. |
| "Heartbeat" Signal Generator | Periodic Wake-Up Controller |
Use Scenario: Produces low-duty-cycle status signal (e.g., 1Hz blink) indicating system health in remote sensors or IoT nodes. IC Role / Device Role / Timing Role: Delivers rail-to-rail CMOS output with programmable polarity and 50% duty cycle for LED or logic-level signaling. Use Value: Enables visual/remote diagnostics without MCU intervention, extending battery life in always-on devices. | Use Scenario: Wakes ultra-low-power microcontrollers (e.g., ARM Cortex-M0+) from deep sleep at precise intervals (e.g., every 10s or 5min). IC Role / Device Role / Timing Role: Generates accurate, low-jitter interrupt signal (tOUT = 10ms–34ks) with minimal quiescent current (55–135µA). Use Value: Achieves sub-µA average system current in battery-powered applications through deterministic sleep/wake scheduling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6375US29+T | Fixed 29s timeout, no programmable period; open-drain output; no DIV pin or polarity control | Limited to single fixed watchdog interval; requires external pull-up and cannot generate arbitrary periods or wake-up signals | Select only for simple, cost-sensitive watchdogs where 29s is sufficient and flexibility is unnecessary |
| LTC6993CS6-1#TRPBF | TimerBlox pulse generator (not oscillator); outputs one-shot pulses; no continuous square wave or reset-hold capability | Cannot replace continuous timing functions like heartbeat or wake-up clocks; suited only for edge-triggered event timing | Choose when precise pulse width (not periodic output) is required, e.g., for PWM dimming or strobe control |
Compared with MAX6375US29+T and LTC6993CS6-1#TRPBF, the LTC6995IS6-1#TRPBF uniquely combines wide-range programmability, active-high reset, and rail-to-rail CMOS output in a single SOT-23 package-making it the only option for applications needing configurable long-period oscillation with deterministic startup behavior.
Availability
LTC6995IS6-1#TRPBF is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor node wake-up, and medical device power-on reset applications requiring stable component supply across extended product lifecycles.
Supply support for LTC6995IS6-1#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 LTC6995IS6-1#TRPBF belongs to the TimerBlox® family of silicon timing devices, engineered to replace unreliable RC-based timers with precision, low-power, and programmable alternatives for long-duration timing in space-constrained, thermally demanding systems.
FAQ
What is the operating temperature range for the LTC6995IS6-1#TRPBF?
The LTC6995IS6-1#TRPBF is rated for –40°C to +85°C (I-grade), with full electrical specifications guaranteed across this range. It uses the same die as the automotive-qualified LTC6995IS6-1#WTRPBF and meets AEC-Q100 stress test requirements, making it suitable for under-dash automotive modules and industrial controllers exposed to thermal cycling.
How do I configure the LTC6995IS6-1#TRPBF for a 1Hz output frequency?
To achieve 1Hz (tOUT = 1000ms) with the LTC6995IS6-1#TRPBF, select NDIV = 64 (DIVCODE = 2, POL = 0) and calculate RSET = (50kΩ / 1.024ms) × (1000ms / 64) ≈ 763kΩ. Use a 768kΩ, 0.5% metal-film resistor between SET and GND, and a 976kΩ/182kΩ divider on DIV for accurate VDIV/V+ = 0.15625 ±1.5%.
Does the LTC6995IS6-1#TRPBF require external components to operate?
Yes - the LTC6995IS6-1#TRPBF requires three external components for basic operation: a 0.1µF ceramic capacitor from V+ to GND, a resistor (RSET) from SET to GND to set frequency, and a resistor divider on the DIV pin to program NDIV and polarity. No crystal, inductor, or timing capacitor is needed, simplifying layout and improving long-term stability.
What is the maximum output drive capability of the LTC6995IS6-1#TRPBF?
The LTC6995IS6-1#TRPBF provides rail-to-rail CMOS output with ±20mA drive strength at V+ = 2.25V to 5.5V. At V+ = 3.3V and IOUT = –10mA, VOH = 2.75V min; at IOUT = 10mA, VOL = 0.46V max. This allows direct driving of LEDs (with series resistor), logic inputs, or small-signal MOSFET gates without external buffers.
Can the LTC6995IS6-1#TRPBF be reconfigured dynamically during operation?
Yes - the LTC6995IS6-1#TRPBF continuously monitors the DIV pin voltage and updates NDIV and polarity within <500 × tMASTER (e.g., <500ns at RSET = 50kΩ) after VDIV settles. The internal digital filter prevents glitches, ensuring clean transitions even if the DIV voltage changes mid-cycle. However, ISET (and thus fMASTER) cannot be changed dynamically without disrupting oscillation.
LTC6995IS6-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- TimerBlox®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Oscillator, Silicon
- Count:
- -
- Frequency:
- 29.1µHz ~ 977Hz
- Voltage - Supply:
- 2.25V ~ 5.5V
- Current - Supply:
- 135 µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- TSOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6995IS6-1#TRPBF FAQ
1.How can I place an order for LTC6995IS6-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6995IS6-1#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 LTC6995IS6-1#TRPBF reliable?
The price and inventory of LTC6995IS6-1#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6995IS6-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6995IS6-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6995IS6-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6995IS6-1#TRPBF?
LTC6995IS6-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6995IS6-1#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 LTC6995IS6-1#TRPBF?
For technical support, including LTC6995IS6-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6995IS6-1#TRPBF requirements.
6.How does Aetrix verify that LTC6995IS6-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6995IS6-1#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 LTC6995IS6-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6995IS6-1#TRPBF?
All LTC6995IS6-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6995IS6-1#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 LTC6995IS6-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC6995IS6-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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