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Analog Devices Inc. LTC6995HS6-1#TRMPBF
- Part No.:
- LTC6995HS6-1#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6995HS6-1#TRMPBF.pdf
- Description:
- IC OSC SILICON PROG TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,144
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Product details
Overview
LTC6995HS6-1#TRMPBF from Analog Devices is a silicon-based programmable low-frequency oscillator IC designed for long-duration timing events in harsh environments. It delivers 1.024ms–9.54h output period (29.1µHz–977Hz), ±1.5% max frequency accuracy, and operates from –40°C to 125°C on 2.25V–5.5V supply. Used in automotive watchdog timers and industrial power-on reset circuits.
For engineers reviewing the LTC6995HS6-1#TRMPBF datasheet, LTC6995HS6-1#TRMPBF pinout, LTC6995HS6-1#TRMPBF application, or LTC6995HS6-1#TRMPBF equivalent, this page provides verified timing parameters, SOT-23-6 pin mapping, reset polarity behavior, temperature-stable RSET programming, and automotive-grade AEC-Q100 qualification details.
Technical Context
The LTC6995HS6-1#TRMPBF implements a master oscillator (1MHz max) controlled by SET-pin current (ISET = VSET/RSET), followed by fixed ÷1024 and programmable divider (NDIV = 1, 8, 64, ..., 2²¹). Its internal 4-bit A/D converter reads DIV pin voltage to set both NDIV and output polarity (POL bit).
Reset is active-high (LTC6995-1 variant), halting oscillation and clearing dividers; release initiates full half-cycle delay before first edge. Start-up time is 500× master clock period (typ. 500ns–8ms), with POR holding OUT low until stable operation begins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Period Range | 1.024ms to 34,360s (9.54h); enables single-component long-interval timing without external RC networks. |
| Frequency Accuracy | ±1.5% over temp & supply; ensures reliable timing in automotive and industrial systems without calibration. |
| Supply Voltage | 2.25V to 5.5V; supports direct interface with 3.3V and 5V logic rails and battery-backed operation. |
| Quiescent Current | 55µA to 80µA (2ms–9.5h range); enables multi-year battery life in low-power wake-up applications. |
| Operating Temp | –40°C to +125°C; qualified per AEC-Q100 Grade H for under-hood and industrial control environments. |
| Output Drive | CMOS, ±20mA sink/source; directly drives LEDs, logic inputs, or small relays without buffer stages. |
| Start-Up Time | 500 × tMASTER (≤8ms typ.); guarantees deterministic initialization after power ramp or reset assertion. |
Pinout & Package
Package: 6-lead TSOT-23 (S6), 1mm profile, RoHS-compliant, lead-free finish. Exposed pad optional for thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive Supply | 2.25V–5.5V input; requires local 0.1µF bypass to GND for noise immunity and stable oscillation. |
| RST | Active-High Reset | Assert high to halt oscillator and clear dividers; release triggers full half-period delay before first output edge. |
| SET | Frequency Programming | Current-sink input regulated at 1.00V ±30mV; connects to GND via RSET (50kΩ–800kΩ) to set master oscillator frequency. |
| GND | Ground Reference | Low-inductance return path; ties to PCB ground plane for optimal jitter and EMI performance. |
| DIV | Divider & Polarity Control | 4-bit A/D input referenced to V+; resistor divider sets NDIV (1–2²¹) and POL bit (output state during reset). |
| OUT | CMOS Output | 50% duty cycle square wave; swings rail-to-rail (GND to V+) with ~30Ω drive impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Output Polarity | POL bit (MSB of DIVCODE) selects whether OUT holds low or high during RST assertion-critical for fail-safe reset states. |
| Glitch-Free DIVCODE Update | Digital filter ensures NDIV changes occur only after stable A/D conversion; no spurious pulses or sub-cycle glitches during reconfiguration. |
| Low-Power Long-Term Stability | 90ppm/√kHr long-term drift; predictable aging behavior enables accurate lifetime timing budgeting in unattended systems. |
| Automotive Qualification | AEC-Q100 Grade H certified; validated for vibration, thermal cycling, and ESD robustness in automotive ECUs and ADAS modules. |
| Fast Reset Propagation | 16–40ns tRST (V+ dependent); enables precise synchronization with microcontroller reset sequences or safety-critical shutdown signals. |
Applications
| Power-On Reset Timer | Watchdog Timer |
|---|---|
Use Scenario: Ensures microcontroller remains held in reset until power rails stabilize and clocks lock, preventing erratic boot behavior in automotive body controllers. IC Role / Device Role / Timing Role: Generates precise, temperature-stable reset pulse width (e.g., 100ms–2s) triggered by V+ crossing POR threshold. Use Value: Eliminates need for discrete RC networks and comparator-based POR circuits-reducing BOM count and layout sensitivity. | Use Scenario: Monitors firmware execution in industrial PLCs; asserts system reset if host fails to toggle RST within programmed timeout window. IC Role / Device Role / Timing Role: Provides configurable timeout interval (seconds to hours) with guaranteed start-up and reset propagation timing. Use Value: Enables fail-safe recovery without MCU intervention; maintains timing integrity even during brown-out or code lockup. |
| "Heartbeat" Signal Generator | Periodic Wake-Up Timer |
Use Scenario: Generates periodic status indicator pulses (e.g., 1Hz LED blink) in remote sensor nodes operating in harsh outdoor environments. IC Role / Device Role / Timing Role: Delivers rail-to-rail CMOS output with ±1.5% accuracy across –40°C to 125°C, driving LEDs directly. Use Value: Replaces crystal-based oscillators and discrete logic; achieves ultra-low quiescent current (<80µA) while maintaining timing fidelity. | Use Scenario: Wakes ultra-low-power IoT edge devices from deep sleep every 30 seconds to sample sensors and transmit data. IC Role / Device Role / Timing Role: Generates precise, low-jitter enable signal to power management ICs or MCU wake pins with 500µs start-up guarantee. Use Value: Extends battery life by minimizing active time; eliminates timing drift due to temperature or supply variation over years of field operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6995HS6-2#TRMPBF | Active-low RST input; identical timing specs, package, and temperature grade. | Required where system-level reset signal is inverted (e.g., open-drain microcontroller reset output). | Select when host MCU or ASIC provides active-low reset assertion; otherwise LTC6995HS6-1#TRMPBF is preferred for standard active-high interfaces. |
| SiT1533AI-H4-33E-32.768000G | Fixed 32.768kHz MEMS oscillator; no programmability, no RST, no DIV/SET pins. | Suitable only for fixed-frequency RTC backup; lacks long-period capability, reset control, or polarity selection. | Use only for simple clock reference; not a functional substitute for programmable timing or watchdog functions. |
Compared with LTC6995HS6-2#TRMPBF, the LTC6995HS6-1#TRMPBF offers native compatibility with active-high reset architectures and avoids level-shifting circuitry. Unlike SiT1533AI-H4-33E-32.768000G, it provides full programmability, wide period range, and integrated reset control-making it uniquely suited for adaptive timing in safety-critical systems.
Availability
LTC6995HS6-1#TRMPBF is available at Aetrix Electronics and suitable for automotive powertrain control, industrial watchdog systems, and battery-powered sensor node timing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6995HS6-1#TRMPBF 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 precision instrumentation, industrial automation, and automotive markets.
The LTC6995HS6-1#TRMPBF belongs to the TimerBlox® family-designed specifically for replacing unreliable RC timers and crystal-based solutions in long-duration, low-power, and high-reliability timing applications.
FAQ
What is the maximum output period achievable with the LTC6995HS6-1#TRMPBF?
The LTC6995HS6-1#TRMPBF supports an output period up to 34,360 seconds (9.54 hours), achieved using NDIV = 2²¹ and RSET = 800kΩ. This value is specified in the Electrical Characteristics table (tOUT MAX = 34,360s) and confirmed across the full –40°C to +125°C operating range. The device maintains ±1.5% accuracy at this extreme setting under nominal supply conditions.
How does the RST pin behave on the LTC6995HS6-1#TRMPBF?
The RST pin on the LTC6995HS6-1#TRMPBF is active-high: asserting RST ≥ 0.7×V+ halts the master oscillator and clears internal dividers, forcing OUT into a fixed state determined by the POL bit. Release of RST initiates a full half-period delay before the first output edge. Propagation delay is 16–40ns depending on supply voltage, as measured in the Electrical Characteristics table.
Can the LTC6995HS6-1#TRMPBF operate from a 2.5V supply?
Yes, the LTC6995HS6-1#TRMPBF is fully specified for operation from 2.25V to 5.5V. At 2.5V, it delivers ±20mA output drive, 55–80µA supply current (depending on RSET), and maintains ±1.5% frequency accuracy across –40°C to +125°C. All electrical characteristics-including VOH/VOL, tRST, and rise/fall times-are validated down to 2.25V per the datasheet Absolute Maximum and Operating Conditions tables.
What package type is used for the LTC6995HS6-1#TRMPBF?
The LTC6995HS6-1#TRMPBF uses the 6-lead TSOT-23 (S6) package: a low-profile (1mm height), surface-mount plastic package with gull-wing leads. Pinout matches standard SOT-23 footprint (V+, RST, SET, GND, DIV, OUT), and the exposed pad is optional for thermal enhancement. This package is explicitly listed in the Order Information table for the HS6-1 variant.
Is the LTC6995HS6-1#TRMPBF qualified for automotive applications?
Yes, the LTC6995HS6-1#TRMPBF is AEC-Q100 qualified for automotive applications (Grade H, –40°C to +125°C). This qualification is stated in the FEATURES section and confirmed in the Order Information table, which lists "LTC6995HS6-1#TRMPBF" under the automotive products section with specified temperature range and #WTRMPBF variants. It meets stress testing requirements for humidity, thermal cycling, and mechanical vibration per AEC-Q100 Rev G.
LTC6995HS6-1#TRMPBF 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 ~ 125°C
- Supplier Device Package:
- TSOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6995HS6-1#TRMPBF FAQ
1.How can I place an order for LTC6995HS6-1#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6995HS6-1#TRMPBF 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 LTC6995HS6-1#TRMPBF reliable?
The price and inventory of LTC6995HS6-1#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6995HS6-1#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6995HS6-1#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6995HS6-1#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6995HS6-1#TRMPBF?
LTC6995HS6-1#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6995HS6-1#TRMPBF 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 LTC6995HS6-1#TRMPBF?
For technical support, including LTC6995HS6-1#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6995HS6-1#TRMPBF requirements.
6.How does Aetrix verify that LTC6995HS6-1#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6995HS6-1#TRMPBF 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 LTC6995HS6-1#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6995HS6-1#TRMPBF?
All LTC6995HS6-1#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6995HS6-1#TRMPBF, 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 LTC6995HS6-1#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6995HS6-1#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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