Analog Devices Inc. LTC2960CTS8-3#TRPBF

Overview

LTC2960CTS8-3#TRPBF from Analog Devices (formerly Linear Technology) is a nano-current, high-voltage two-input voltage supervisor IC designed for multicell battery monitoring and regulator UVLO in space-constrained portable systems. It features 850nA quiescent current, 2.5V–36V VCC operating range, ±1.5% threshold accuracy over –40°C to 125°C, and fixed 200ms reset timeout. It monitors ADJ and IN+ inputs to drive active-pull-up RST and OUT outputs referenced to DVCC.

For engineers reviewing the LTC2960CTS8-3#TRPBF datasheet, LTC2960CTS8-3#TRPBF pinout, LTC2960CTS8-3#TRPBF application, or LTC2960CTS8-3#TRPBF equivalent, key selection criteria include its TSOT-23-8 package, dual-threshold supervision with manual reset, DVCC-referenced logic outputs, and suitability for low-power battery disconnect and regulated supply monitoring in automotive and industrial edge devices.

Technical Context

The LTC2960CTS8-3#TRPBF implements two independent comparators: one on ADJ (reset threshold) with 2.5% hysteresis and 200ms timeout, and one on IN+ (spare threshold) with 5% hysteresis. Its internal 400mV reference enables precise external resistor-divider configuration of falling thresholds across wide input voltages.

Unlike LTC2960-1/2 variants, it replaces the RT pin with DVCC to support active-pull-up outputs-RST and OUT are driven to DVCC (1.6V–5.5V) when high, eliminating external pull-up resistors and reducing static power. GND-tied DVCC reconfigures outputs as open-drain.

Key Specifications

Pinout & Package

Package: TSOT-23-8 (8-lead Plastic TSOT-23), 2.9mm × 1.6mm × 0.9mm, exposed pad optional.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326US29D3+T and TPS3808G33DBVR, the LTC2960CTS8-3#TRPBF uniquely delivers dual configurable thresholds, nano-power operation, and DVCC-referenced outputs in a space-efficient TSOT-23-8-making it irreplaceable for multicell battery state-of-charge monitoring and mixed-voltage system supervision.

Availability

LTC2960CTS8-3#TRPBF is available at Aetrix Electronics and suitable for battery-powered security sensors, automotive body control modules, and portable medical monitors requiring stable component supply with guaranteed long-term availability.

Supply support for LTC2960CTS8-3#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 acquired Linear Technology in 2017 and maintains its precision analog and power management portfolio with rigorous automotive and industrial qualification standards.

The LTC2960 family was designed specifically for ultra-low-power, high-voltage supervision in battery-critical applications-including multicell Li-ion packs, automotive subsystems, and energy-harvesting nodes-where nanoscale current budgets and wide input ranges are mandatory.

FAQ

What is the function of the DVCC pin on the LTC2960CTS8-3#TRPBF?

The DVCC pin on the LTC2960CTS8-3#TRPBF sets the logic-high voltage level for the RST and OUT outputs. When connected to a 1.6V–5.5V supply, it enables active-pull-up operation-eliminating external pull-up resistors and reducing static power. Grounding DVCC configures both outputs as open-drain, requiring external pull-ups. This flexibility allows seamless interfacing with diverse logic families while optimizing power and board area. The LTC2960CTS8-3#TRPBF leverages DVCC to deliver true mixed-voltage supervision capability.

How does the LTC2960CTS8-3#TRPBF differ from the LTC2960-1 variant?

The LTC2960CTS8-3#TRPBF replaces the RT (reset timeout select) pin with DVCC and fixes the reset timeout at 200ms, whereas LTC2960-1 offers selectable 15ms/200ms timeout via RT and uses 36V open-drain outputs. The LTC2960CTS8-3#TRPBF also supports active-pull-up outputs referenced to DVCC, enabling lower power and faster rise times than open-drain configurations. Both share identical ADJ/IN+ input architecture and 850nA quiescent current, but the LTC2960CTS8-3#TRPBF is optimized for logic-compatible, low-power designs where timing flexibility is secondary to output drive efficiency.

Can the LTC2960CTS8-3#TRPBF monitor two different supply rails simultaneously?

Yes-the LTC2960CTS8-3#TRPBF can monitor two distinct voltage rails using its dual-comparator architecture: ADJ for primary reset supervision (e.g., 3.3V regulator output) and IN+ for secondary event detection (e.g., battery voltage). Each input is configured independently via external resistor dividers. For example, ADJ can be set to assert RST at 3.05V (for MCU reset), while IN+ triggers OUT at 2.9V (for low-battery warning). The LTC2960CTS8-3#TRPBF's 400mV internal reference and ±0.1nA input leakage ensure accurate, low-error threshold setting across both channels without cross-talk.

What is the minimum recommended decoupling capacitance for the VCC pin of the LTC2960CTS8-3#TRPBF?

The minimum recommended decoupling capacitance for the VCC pin of the LTC2960CTS8-3#TRPBF is 0.01µF ceramic, placed as close as possible to the pin with short traces to GND. However, the datasheet recommends 0.1µF (50V rating) for robust noise immunity-especially in automotive or industrial environments with fast transients. This value balances effective high-frequency filtering with physical size constraints in TSOT-23 layouts. The LTC2960CTS8-3#TRPBF's 850nA supply current makes it tolerant of small capacitors, but larger values improve immunity to load-dump spikes and ESD events without compromising startup time.

Does the LTC2960CTS8-3#TRPBF support operation down to 0V VCC?

No-the LTC2960CTS8-3#TRPBF requires VCC ≥ 2.5V to operate correctly. Below 2.5V, internal circuitry ceases functioning, and outputs are not guaranteed. However, the device incorporates undervoltage lockout (UVLO) that pulls RST and OUT low when VCC falls below 1.85V (rising) or 2.3V (falling), ensuring clean reset assertion during power-down. When VCC drops below 1.2V, output states become indeterminate. The LTC2960CTS8-3#TRPBF is not designed for zero-VCC "battery-keeper" operation but excels in systems where supervision begins at nominal supply levels.