Analog Devices Inc. LTC2960CTS8-2#TRMPBF

Overview

LTC2960CTS8-2#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 space-constrained portable systems. It features 850nA quiescent current, 2.5V–36V VCC operation, ±2mV ADJ/IN– threshold matching, and 200ms fixed reset timeout. It monitors ADJ and IN– inputs to generate RST and open-drain OUT signals - used for low-battery detection and regulator UVLO in multicell Li-ion applications.

For engineers reviewing the LTC2960CTS8-2#TRMPBF datasheet, LTC2960CTS8-2#TRMPBF pinout, LTC2960CTS8-2#TRMPBF application, or LTC2960CTS8-2#TRMPBF equivalent, key selection criteria include its TSOT-23-8 package, IN– input configuration, 36V open-drain outputs, –40°C to 85°C operating range, and compatibility with external resistive dividers for custom thresholds down to 0.4V.

Technical Context

The LTC2960CTS8-2#TRMPBF implements two independent comparators: one on ADJ (reset threshold) with 2.5% hysteresis and 80–500µs propagation delay, and a second on IN– (inverting input) configured for overvoltage detection with 20mV hysteresis. Its RST output asserts low when ADJ falls below threshold; OUT asserts low when IN– rises above threshold - enabling dual-fault monitoring (e.g., battery overvoltage + supply undervoltage).

It uses an internal 400mV reference with ±2mV matching between ADJ and IN– thresholds across temperature, and supports manual reset via MR input with 20µs minimum pulse width and 1–20µs propagation delay. The device operates with no external timing components and requires only decoupling capacitors (0.1µF on VCC, optional 0.1µF on DVCC if used).

Key Specifications

Pinout & Package

Package: 8-lead TSOT-23 (2.9mm × 1.6mm × 0.9mm), RoHS-compliant, lead-free finish. Exposed pad not present in TSOT-23 variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326UT29D3+T and TPS3808G33DBVR, the LTC2960CTS8-2#TRMPBF delivers unique dual-comparator architecture, 36V open-drain outputs, and true nano-power operation - making it the only option among the three capable of simultaneous low-battery and overvoltage supervision in a single TSOT-23-8 package.

Availability

LTC2960CTS8-2#TRMPBF is available at Aetrix Electronics and suitable for battery-powered portable equipment, automotive body electronics, and industrial IoT edge nodes requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for LTC2960CTS8-2#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 acquired Linear Technology in 2017 and maintains full product support, datasheets, and application engineering for the LTC portfolio.

The LTC2960 series was designed specifically for ultra-low-power, high-voltage system supervision in battery-critical applications - emphasizing nano-current operation, wide input range, and flexible threshold configuration without external timing components.

FAQ

What is the operating temperature range for the LTC2960CTS8-2#TRMPBF?

The LTC2960CTS8-2#TRMPBF is specified for operation from –40°C to +85°C ambient temperature. This industrial-grade range is validated across all electrical parameters including threshold accuracy (±1.5%), quiescent current (≤850nA), and reset timeout (140–280ms). It is not rated for extended temperature ranges beyond this specification.

How does the LTC2960CTS8-2#TRMPBF differ from the LTC2960CTS8-1#TRMPBF?

The LTC2960CTS8-2#TRMPBF uses an inverting input (IN–) for its spare comparator and has a fixed 200ms reset timeout, while the LTC2960CTS8-1#TRMPBF uses a non-inverting input (IN+) and offers selectable 15ms/200ms timeout via the RT pin. Both share identical VCC range, quiescent current, and 36V open-drain outputs.

Can the LTC2960CTS8-2#TRMPBF monitor voltages above 36V?

No - the absolute maximum rating for VCC, ADJ, IN–, and MR is 40V, but continuous operation above 36V violates the specified operating range. For higher-voltage monitoring (e.g., 48V systems), external protection circuitry such as a Zener clamp (as shown in Figure 7a of the datasheet) is required to limit input voltage to ≤36V at the IC pins.

What is the purpose of the unused RT/DVCC pin on the LTC2960CTS8-2#TRMPBF?

On the LTC2960CTS8-2#TRMPBF, pin 2 is labeled RT/DVCC but functions as NC (no connect). It is not bonded internally and must be left unconnected. This distinguishes it from -1/-3/-4 variants where pin 2 serves as RT (timeout select) or DVCC (logic supply) - confirming the fixed 200ms timeout and absence of active pull-up capability in this variant.

Does the LTC2960CTS8-2#TRMPBF require external capacitors for stable operation?

Yes - a 0.1µF ceramic capacitor is required between VCC and GND, placed as close as possible to the device. This decoupling capacitor stabilizes the internal reference and prevents noise-induced false resets. No capacitor is required on the IN– or ADJ inputs, but resistor dividers must be sized to limit leakage-induced error to <1% (typically using ≤8MΩ total resistance).