Analog Devices Inc. LTC2960ITS8-1#TRMPBF

Overview

LTC2960ITS8-1#TRMPBF from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-threshold voltage supervisor IC designed for battery monitoring and system reset control in multicell Li-ion, automotive, and industrial power rails. It features 850nA quiescent current, ±1.5% threshold accuracy over –40°C to 85°C, adjustable ADJ/IN+ reset thresholds, 15ms/200ms selectable reset timeout, and 36V open-drain RST/OUT outputs - enabling reliable brown-out detection in portable medical devices.

For engineers reviewing the LTC2960ITS8-1#TRMPBF datasheet, LTC2960ITS8-1#TRMPBF pinout, LTC2960ITS8-1#TRMPBF application, or LTC2960ITS8-1#TRMPBF equivalent, key selection criteria include its 2.5V–36V operating range, IN+/ADJ dual-comparator architecture, TSOT-23-8 package compatibility with space-constrained PCBs, and support for external resistor-based threshold programming without trimming.

Technical Context

The LTC2960ITS8-1#TRMPBF integrates two independent comparators: one monitors the ADJ input for reset generation (with 2.5% hysteresis), while the second monitors IN+ for configurable status signaling (with 5% hysteresis). Its internal 400mV reference enables precise threshold setting via external resistive dividers across monitored voltages up to 36V.

It implements a programmable reset timeout using the RT pin (GND = 15ms, VCC = 200ms), supports manual reset via MR input with 20µs minimum pulse width, and guarantees output low-state integrity down to VCC = 1.2V. The 36V open-drain RST and OUT outputs tolerate pull-up voltages beyond VCC, enabling direct interface with higher-voltage logic or PMIC enable inputs.

Key Specifications

Pinout & Package

Package: 8-lead TSOT-23 (ThinSOT™), 2.9mm × 1.6mm footprint, 0.65mm pitch, exposed pad optional. Compatible with standard SMT reflow profiles and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage supervisor applications.

Compared with MAX6326UT29D3+T and TPS3808G18DBVR, the LTC2960ITS8-1#TRMPBF uniquely delivers dual-comparator supervision, 36V output capability, and sub-1µA quiescent current in a TSOT-23 package - making it the only option for high-voltage, ultra-low-power, dual-threshold applications.

Availability

LTC2960ITS8-1#TRMPBF is available at Aetrix Electronics and suitable for portable medical monitors, battery-powered IoT sensors, automotive body control modules, and industrial PLC I/O cards requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for LTC2960ITS8-1#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, acquired Linear Technology in 2017 to expand precision power and interface solutions.

The LTC2960ITS8-1#TRMPBF belongs to ADI's legacy Linear Technology supervisor family, engineered specifically for ultra-low-power, high-voltage system monitoring in battery-critical and harsh-environment applications.

FAQ

What is the maximum input voltage the LTC2960ITS8-1#TRMPBF can monitor on the ADJ pin?

The ADJ pin has an absolute maximum rating of –0.3V to 3.5V. To monitor higher voltages (e.g., 24V or 36V rails), a resistive divider must scale the input so the voltage at ADJ remains within this range. For example, a 60:1 divider reduces 36V to 600mV - safely within specification and compatible with the 400mV internal reference. The LTC2960ITS8-1#TRMPBF datasheet confirms this configuration in Figure 1 and Application Note 2960fa.

Does the LTC2960ITS8-1#TRMPBF support both rising- and falling-edge detection on the IN+ input?

No - the LTC2960ITS8-1#TRMPBF IN+ input is configured for falling-edge detection only: OUT pulls low when IN+ falls below threshold and releases only after IN+ rises above threshold + 5% hysteresis. This behavior is explicitly defined in the Pin Functions section (page 6) and Timing Diagram (page 7) of the LTC2960ITS8-1#TRMPBF datasheet, distinguishing it from IN– variants that support rising-edge detection.

Can the RT pin of the LTC2960ITS8-1#TRMPBF be left floating?

No - the RT pin must be actively pulled to either GND or VCC to select 15ms or 200ms reset timeout. Floating RT causes undefined timing behavior due to internal leakage paths. The Electrical Characteristics table (page 4) specifies VRT threshold as 0.4V to 1.4V, confirming valid logic levels are required. For robust design, tie RT directly to GND or VCC with a short trace; do not rely on PCB parasitics.

How does the LTC2960ITS8-1#TRMPBF behave when VCC drops below 1.2V?

When VCC falls below 1.2V, the LTC2960ITS8-1#TRMPBF guarantees RST and OUT remain low regardless of input conditions - a critical safety feature documented in the Absolute Maximum Ratings and Applications Information sections. Below 1.2V, internal logic cannot maintain defined states, but the outputs stay asserted to prevent spurious release during power collapse. This ensures fail-safe reset hold-down in brown-out scenarios.

Is the LTC2960ITS8-1#TRMPBF pin-compatible with other variants like LTC2960ITS8-3#TRMPBF?

No - the LTC2960ITS8-1#TRMPBF (open-drain outputs, RT pin) is not pin-compatible with LTC2960ITS8-3#TRMPBF (active pull-up outputs, DVCC pin instead of RT). Pin 2 is RT in LTC2960ITS8-1#TRMPBF but DVCC in LTC2960ITS8-3#TRMPBF, and their output drive architectures differ fundamentally. Swapping them requires PCB redesign. Always verify pin mapping against the specific variant's Order Information table (page 3) before layout.