Analog Devices Inc. LTC2960CDC-3#TRPBF

Overview

LTC2960CDC-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 power-rail supervision in portable and automotive systems. It features 850nA quiescent current, 2.5V–36V VCC operating range, ±2mV ADJ/IN+ threshold matching, fixed 200ms reset timeout, and active pull-up RST/OUT outputs referenced to DVCC. It is used in Li-ion battery packs to generate low-battery and UVLO signals for DC/DC enable control.

For engineers reviewing the LTC2960CDC-3#TRPBF datasheet, LTC2960CDC-3#TRPBF pinout, LTC2960CDC-3#TRPBF application, or LTC2960CDC-3#TRPBF equivalent, key selection criteria include its 200ms fixed reset timeout, DVCC-referenced active pull-up outputs, IN+/ADJ dual-threshold configuration, and operation down to 0°C with 8-lead DFN package.

Technical Context

The LTC2960CDC-3#TRPBF integrates two independent comparators: one monitors the ADJ input for reset generation with 2.5% hysteresis and 200ms timeout, while the second monitors IN+ for auxiliary voltage detection with 5% hysteresis. Its internal 400mV reference enables precise threshold setting via external resistive dividers.

Unlike LTC2960-1/-2 variants, it replaces the RT pin with DVCC to support logic-level output swing control (1.6V–5.5V), enabling direct interfacing with low-voltage microcontrollers without external pull-ups. It guarantees RST/OUT low state for VCC ≥ 1.2V and supports open-drain operation when DVCC = GND.

Key Specifications

Pinout & Package

Package: 8-lead (2mm × 2mm) plastic DFN (DC8), exposed pad optional for thermal relief or GND connection.

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 LTC2960CDC-3#TRPBF uniquely delivers dual-threshold supervision, 36V operation, and DVCC-configurable outputs in a nano-power package-enabling compact, battery-optimized designs that require coordinated power sequencing and low-voltage logic interfacing.

Availability

LTC2960CDC-3#TRPBF is available at Aetrix Electronics and suitable for portable medical devices, automotive infotainment systems, and industrial sensor nodes requiring stable component supply with guaranteed long-term availability.

Supply support for LTC2960CDC-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 continues its legacy of high-performance analog ICs for precision power, sensing, and signal conditioning.

The LTC2960 family was designed specifically for ultra-low-power, high-voltage supervision in battery-powered and automotive systems where nanoscale quiescent current and dual-threshold flexibility are critical.

FAQ

What is the function of the DVCC pin on the LTC2960CDC-3#TRPBF?

The DVCC pin on the LTC2960CDC-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 reconfigures both outputs as open-drain, allowing higher-voltage pull-up (up to 36V). This flexibility makes the LTC2960CDC-3#TRPBF adaptable to mixed-voltage system architectures without redesign.

How does the LTC2960CDC-3#TRPBF differ from the LTC2960-1 variant?

The LTC2960CDC-3#TRPBF replaces the RT (reset timeout select) pin with DVCC and fixes the reset timeout at 200ms, whereas the LTC2960-1 uses RT to select between 15ms or 200ms. Additionally, LTC2960CDC-3#TRPBF provides active pull-up outputs referenced to DVCC, while LTC2960-1 offers only 36V open-drain outputs. Both share identical ADJ/IN+ topology and 850nA quiescent current, but LTC2960CDC-3#TRPBF is optimized for low-voltage logic interfacing and simplified timing.

Can the LTC2960CDC-3#TRPBF monitor two different voltage rails simultaneously?

Yes-the LTC2960CDC-3#TRPBF can monitor two distinct voltage rails simultaneously using its ADJ and IN+ inputs. Each input is independently configurable via external resistor dividers: ADJ sets the primary reset threshold (e.g., 6.41V for UVLO), while IN+ sets a secondary threshold (e.g., 5.54V for low-battery warning). The device asserts RST on ADJ breach and OUT on IN+ breach, enabling coordinated power management decisions in systems like battery-powered instrumentation or automotive ECUs.

What is the minimum VCC voltage required to guarantee valid RST/OUT states on the LTC2960CDC-3#TRPBF?

The LTC2960CDC-3#TRPBF guarantees valid RST and OUT logic states for VCC ≥ 1.2V. Below 1.2V, output behavior is undefined. The device incorporates an internal undervoltage lockout (UVLO) that pulls both outputs low when VCC falls below 1.85V (rising) or 1.75V (falling), ensuring clean reset assertion during brown-out conditions. This specification is critical for reliable operation in automotive cold-crank scenarios where battery voltage dips transiently.

Is the LTC2960CDC-3#TRPBF compatible with TSOT-23 packaging?

No-the LTC2960CDC-3#TRPBF is exclusively offered in the 8-lead (2mm × 2mm) plastic DFN (DC8) package, as confirmed by the order information table. TSOT-23 variants exist for other members of the family (e.g., LTC2960CTS8-3#TRPBF), but the "CDC" prefix denotes the DFN package. Board designs must use the DC8 footprint; mechanical compatibility with TSOT-23 is not supported, and pin assignments differ between packages.