Analog Devices Inc. LTC6995HS6-1#TRPBF

Overview

LTC6995HS6-1#TRPBF from Analog Devices is a silicon-based long-duration timer IC with programmable output period (1.024ms–9.54 hours), active-high reset input, and CMOS output driver sourcing/sinking 20mA. It uses a single RSET resistor and DIV pin voltage divider to configure frequency and polarity, targeting power-on reset, watchdog, and periodic wake-up functions in industrial and automotive systems.

For engineers reviewing the LTC6995HS6-1#TRPBF datasheet, LTC6995HS6-1#TRPBF pinout, LTC6995HS6-1#TRPBF application, or LTC6995HS6-1#TRPBF equivalent, this page delivers verified timing parameters, SOT-23-6 package layout, temperature-rated performance (–40°C to 125°C), and real-world substitution guidance for embedded timing design.

Technical Context

The LTC6995HS6-1#TRPBF implements a master oscillator (1MHz max) followed by a fixed ÷1024 divider and an 8-step programmable divider (NDIV = 1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹), enabling precise low-frequency output generation. Its SET pin regulates VSET to 1.00V ±30mV, making ISET = VSET/RSET the primary frequency control variable.

Reset behavior is synchronized to internal dividers: asserting RST halts oscillation and clears counters; release initiates a full half-period delay before first edge. Polarity of both RST and OUT is determined by the MSB (POL bit) of the 4-bit DIVCODE derived from VDIV/V+ ratio, with ±1.5% voltage accuracy required for correct NDIV selection.

Key Specifications

Pinout & Package

Package: 6-lead TSOT-23 (S6), 1mm profile, RoHS-compliant, exposed pad optional for thermal relief.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar long-duration timing applications.

Compared with LTC6995IS6-1#TRPBF and LTC6995HS6-2#TRPBF, the LTC6995HS6-1#TRPBF uniquely combines automotive-grade temperature range with active-high reset compatibility - essential for new designs requiring robustness in high-temperature environments without logic inversion.

Availability

LTC6995HS6-1#TRPBF is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor wake-up, and medical device power-on reset applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6995HS6-1#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 LTC6995HS6-1#TRPBF-is engineered for precision, low-power, long-duration timing in space-constrained embedded systems where crystal oscillators or RC timers lack accuracy, stability, or integration.

FAQ

What is the maximum output period achievable with LTC6995HS6-1#TRPBF?

The LTC6995HS6-1#TRPBF supports an output period up to 34,360 seconds (9.54 hours) when configured with NDIV = 2²¹ and RSET = 800kΩ. This maximum is guaranteed over the full –40°C to 125°C operating range and enables multi-hour watchdog timeouts or infrequent sensor wake-ups without external components.

How does the RST pin behave during power-up for LTC6995HS6-1#TRPBF?

During power-up, the LTC6995HS6-1#TRPBF's internal POR circuit holds OUT low until V+ exceeds ~1.4V. If RST is held low (inactive) at power-up, OUT begins oscillating immediately after start-up completes (~0.5–8ms). If RST is high (active) at power-up, OUT remains low until RST is deasserted - then starts with a precise ½tOUT delay before first edge.

Can LTC6995HS6-1#TRPBF drive a 10kΩ load directly?

Yes. The LTC6995HS6-1#TRPBF's CMOS output has rail-to-rail swing and can source/sink ±20mA. Driving a 10kΩ load at 3.3V results in <0.33mA current - well within spec. For loads ≤500Ω, verify voltage drop using VOH/VOL specs (e.g., VOH ≥4.84V at –16mA, V+ = 5.5V) to ensure logic-level compatibility.

What resistor tolerance is recommended for RSET in LTC6995HS6-1#TRPBF designs?

Analog Devices specifies 0.5% or better metal or thin-film resistors with ≤50ppm/°C temperature coefficient for RSET in precision applications. For cost-sensitive designs where ±2.2% total frequency error is acceptable, 1% thick-film resistors may be used - but must be derated for tempco-induced drift over –40°C to 125°C.

Is LTC6995HS6-1#TRPBF pin-compatible with LTC6995HS6-2#TRPBF?

Yes - LTC6995HS6-1#TRPBF and LTC6995HS6-2#TRPBF share identical SOT-23-6 pinout, electrical characteristics, and functional blocks. The sole difference is RST polarity: active-high for -1 version, active-low for -2. No PCB change is needed, but firmware or upstream logic must invert the reset signal when substituting between them.