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Analog Devices Inc. LTC6995HS6-2#TRPBF
- Part No.:
- LTC6995HS6-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6995HS6-2#TRPBF.pdf
- Description:
- IC OSC SILICON PROG TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,175
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Product details
Overview
LTC6995HS6-2#TRPBF from Analog Devices is a silicon oscillator IC designed for long-duration timing events, delivering programmable output periods from 1.024ms to 9.54 hours (29.1µHz–977Hz) with ±1.5% frequency accuracy, active-low reset input, and 50% duty cycle CMOS output. It serves as a low-power, temperature-stable timing source in automotive watchdog and power-on reset circuits.
For engineers reviewing the LTC6995HS6-2#TRPBF datasheet, LTC6995HS6-2#TRPBF pinout, LTC6995HS6-2#TRPBF application, or LTC6995HS6-2#TRPBF equivalent, key selection criteria include its –40°C to 125°C operating range, SOT-23-6 package, 2.25V–5.5V supply, 55µA–80µA quiescent current, and programmable NDIV divider (1–2²¹) via resistor-based DIV pin voltage.
Technical Context
The LTC6995HS6-2#TRPBF integrates 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.
Reset behavior is version-specific: LTC6995HS6-2#TRPBF features active-low RST that halts oscillation and clears dividers; release initiates a full half-cycle delay before first edge. Output start state (high/low during reset) is determined solely by the POL bit (MSB of DIVCODE), not RST polarity-enabling independent control of reset assertion and output idle state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Period Range | 1.024ms to 34,360s (9.54 hours); enables single-component long-interval timing without external RC networks. |
| Frequency Accuracy | ±1.5% over temperature; ensures reliable timing in automotive and industrial environments without calibration. |
| Supply Voltage | 2.25V to 5.5V; supports direct interface with 3.3V and 5V logic rails and battery-backed systems. |
| Quiescent Current | 55µA to 80µA (2ms–9.5hr period); enables multi-year operation in energy-constrained applications. |
| Operating Temp | –40°C to +125°C; qualified per AEC-Q100 Grade H for under-hood automotive use. |
| Output Drive | CMOS, ±20mA sink/source; directly drives logic inputs, LEDs, or small MOSFET gates without buffering. |
| Start-Up Time | 500 × tMASTER (≤8ms typical); ensures deterministic initialization after power-on or reset release. |
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 |
|---|---|---|
| RST | Active-low reset input | Holds oscillator halted and clears internal dividers; release triggers precise half-period delay before first output edge. |
| GND | Analog/digital ground reference | Low-inductance return path for SET, DIV, and output stages; must connect to solid ground plane. |
| SET | Frequency-setting current input | Sinks ISET = 1.00V/RSET; RSET = 50kΩ–800kΩ programs master oscillator (1.25µA–20µA). |
| OUT | CMOS square-wave output | 50% duty cycle, rail-to-rail swing (GND to V+); 30Ω output impedance supports ≤20mA load. |
| V+ | Positive supply input | 2.25V–5.5V; requires 0.1µF ceramic bypass capacitor directly to GND for noise immunity. |
| DIV | Programmable divider/polarity input | 4-bit A/D input referenced to V+; resistor divider sets NDIV (1–2²¹) and POL bit (output idle state). |
Key Features
| Feature | Design Value |
|---|---|
| Programmable long-period oscillator | Replaces bulky RC timers and microcontroller-based wake-up circuits with single IC and two resistors. |
| Active-low reset with glitch-free transition | Enables safe system reset coordination; internal digital filter prevents spurious NDIV changes during DIV pin settling. |
| Temperature-stable 1V SET reference | Eliminates VSET drift impact on frequency when using RSET; maintains ±1.5% accuracy across –40°C to +125°C. |
| Configurable output polarity during reset | POL bit (via DIV pin) independently defines whether OUT is high or low while RST is asserted-critical for fail-safe logic states. |
| AEC-Q100 qualified Grade H | Validated for automotive under-hood applications including engine control, ADAS sensors, and body electronics. |
Applications
| Power-On Reset Timer | Watchdog Timer |
|---|---|
Use Scenario: Ensures microcontroller enters known state after cold start or brown-out recovery in automotive ECUs. IC Role / Device Role / Timing Role: Generates precise, temperature-stable reset pulse ≥100ms after V+ exceeds 1.95V, holding MCU in reset until stable clock and supply are confirmed. Use Value: Eliminates need for discrete RC network and comparator; ±1.5% accuracy guarantees reset duration compliance across full automotive temperature range. | Use Scenario: Monitors firmware execution in safety-critical ADAS modules to trigger hardware reset if software hangs. IC Role / Device Role / Timing Role: Provides configurable timeout interval (e.g., 2–60 seconds) triggered by periodic MCU "kick" signal on RST pin. Use Value: Active-low RST allows direct connection to open-drain MCU watchdog output; 55µA current enables always-on monitoring in low-power sleep modes. |
| "Heartbeat" Signal Generator | Periodic Wake-Up Controller |
Use Scenario: Supplies periodic status indication (e.g., LED blink every 30 seconds) in battery-powered telematics units. IC Role / Device Role / Timing Role: Generates low-duty-cycle 30s-period square wave driving LED driver or GPIO interrupt. Use Value: 80µA max supply current extends battery life vs. MCU-based solutions; SOT-23-6 footprint minimizes PCB area. | Use Scenario: Wakes ultra-low-power sensor node from deep sleep every 5 minutes to sample and transmit data. IC Role / Device Role / Timing Role: Produces precise 5-minute enable pulse to power gate MOSFET controlling sensor subsystem. Use Value: Programmable NDIV (e.g., 2¹⁸) and RSET allow exact 300s period without trimming; 500µs start-up ensures immediate response post-wake. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar long-period oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6995HS6-1#TRPBF | Active-high RST input; identical timing specs, package, temp range, and pinout. | Requires high-asserted reset signal from host MCU; unsuitable where reset logic is open-drain or pulled low. | Select only if system reset architecture mandates active-high assertion. |
| TPS3808G33DBVR | Dedicated 3.3V supervisor with fixed 200ms reset delay; no programmable period or oscillator output. | Provides only power-on reset, no periodic timing or wake-up capability; lacks frequency programming. | Use only for basic POR; not a functional substitute for LTC6995HS6-2#TRPBF's oscillator functionality. |
Compared with LTC6995HS6-1#TRPBF, the LTC6995HS6-2#TRPBF enables direct interface with open-drain reset outputs and simplifies level-shifting in mixed-voltage systems; versus TPS3808G33DBVR, it delivers programmable long-interval timing unattainable with fixed supervisors.
Availability
LTC6995HS6-2#TRPBF is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor wake-up, and medical device power-on reset requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6995HS6-2#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 precision instrumentation, industrial automation, communications, and automotive markets.
The LTC6995HS6-2#TRPBF belongs to the TimerBlox® family of silicon timing devices, engineered to replace unreliable RC timers and reduce firmware overhead in timing-critical embedded systems.
FAQ
What is the maximum output period achievable with the LTC6995HS6-2#TRPBF?
The LTC6995HS6-2#TRPBF supports a maximum output period of 34,360 seconds (9.54 hours), achieved when NDIV = 2²¹ and RSET = 800kΩ. This value is guaranteed across the –40°C to +125°C operating range and reflects the upper limit of its programmable long-timer capability.
How does the active-low RST input function in the LTC6995HS6-2#TRPBF?
In the LTC6995HS6-2#TRPBF, the RST pin is active-low: pulling RST to GND halts the master oscillator and clears internal dividers. Upon release (RST rising to V+), the device initiates a full half-period delay before the first output edge, enabling precise synchronization in power-on reset and watchdog applications.
Can the LTC6995HS6-2#TRPBF generate non-50% duty cycle waveforms?
No, the LTC6995HS6-2#TRPBF generates only 50% duty cycle square waves. Its internal architecture-comprising a master oscillator, fixed ÷1024 divider, and integer NDIV divider-ensures symmetrical high/low periods. Duty cycle adjustment requires external circuitry or a different timer IC.
What is the recommended bypass capacitor for the V+ pin of the LTC6995HS6-2#TRPBF?
Analog Devices specifies a 0.1µF ceramic capacitor placed directly between the V+ pin and GND for the LTC6995HS6-2#TRPBF. This capacitor must be located adjacent to the IC with minimal trace length to suppress supply noise and ensure stable oscillator operation across temperature and load conditions.
Is the LTC6995HS6-2#TRPBF pin-compatible with other TimerBlox devices?
No, the LTC6995HS6-2#TRPBF is not pin-compatible with other TimerBlox devices such as LTC6991 or LTC6993. Its SOT-23-6 pinout (RST/GND/SET/OUT/V+/DIV) is unique to the LTC6995 family and optimized for resistor-programmed long-period timing, not PWM or pulse-width modulation functions.
LTC6995HS6-2#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 ~ 125°C
- Supplier Device Package:
- TSOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6995HS6-2#TRPBF FAQ
1.How can I place an order for LTC6995HS6-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6995HS6-2#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 LTC6995HS6-2#TRPBF reliable?
The price and inventory of LTC6995HS6-2#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6995HS6-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6995HS6-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6995HS6-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6995HS6-2#TRPBF?
LTC6995HS6-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6995HS6-2#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 LTC6995HS6-2#TRPBF?
For technical support, including LTC6995HS6-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6995HS6-2#TRPBF requirements.
6.How does Aetrix verify that LTC6995HS6-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6995HS6-2#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 LTC6995HS6-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6995HS6-2#TRPBF?
All LTC6995HS6-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6995HS6-2#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 LTC6995HS6-2#TRPBF part is unused and in its original packaging.
Return procedure for LTC6995HS6-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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