LTC6991HS6#TRPBF

Programmable Timers And Oscillators Overview

The LTC6991HS6#TRPBF is a silicon oscillator from the TimerBlox family, designed for long duration timing events. It features a programmable period range of 1.024ms to 9.54 hours (29.1µHz to 977Hz). The output clock period is determined by an internal master oscillator and a programmable frequency divider (NDIV) with eight settings from 1 to 2^21. A single resistor (RSET) programs the master frequency. The device operates on a single supply voltage of 2.25V to 5.5V, consumes 55µA to 80µA depending on the clock period, and includes a reset function to truncate pulses or inhibit oscillation. It is qualified for automotive applications and housed in a 6-lead TSOT-23 package.

Programmable Timers And Oscillators Feature Summary

• Programmable period range from 1.024ms to 9.54 hours using one resistor
• AEC-Q100 qualified for automotive applications
• Output reset function allows pulse truncation or inhibition
• CMOS output driver sources/sinks 20mA
• Supply current ranges from 55µA to 80µA

Programmable Timers And Oscillators Applications

• Heartbeat timers
• Watchdog timers
• Intervalometers
• Periodic wake-up calls
• Battery-powered equipment

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #WTRPBF indicates automotive grade manufacturing controlled to support quality and reliability requirements. Confirm the temperature range corresponds to the HS6 designation (-40°C to 125°C). Ensure the ordering information matches the 6-lead Plastic TSOT-23 package type listed in the official documentation.

Programmable Timers And Oscillators Selection Notes

Select the LTC6991HS6#TRPBF when automotive qualification and extended temperature operation up to 125°C are required. Choose this model over standard grades if the application demands compliance with automotive reliability standards. Verify that the required clock period falls within the 1.024ms to 9.54 hours range and that the 6-lead TSOT-23 package fits the PCB layout constraints.

Programmable Timers And Oscillators Part Context

This component belongs to the Analog Devices TimerBlox family of versatile silicon timing devices. The LTC6991 series offers low-frequency oscillation capabilities specifically intended for long duration timing events. The HS6 variant denotes the high-temperature industrial/automotive grade version packaged in a thin SOT-23 form factor.

Programmable Timers And Oscillators Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.