Analog Devices Inc. LTC2960CDC-2

Overview

LTC2960CDC-2 from Analog Devices (formerly Linear Technology) is a nano-current, high-voltage two-input voltage supervisor IC designed for battery and regulator monitoring in space-constrained systems. It features 850nA quiescent current, 2.5V–36V VCC operating range, ±2mV ADJ/IN– threshold matching, and 200ms fixed reset timeout. It operates across 0°C to 70°C and implements an inverting-input comparator (IN–) for overvoltage detection in multicell Li-ion battery packs.

For engineers reviewing the LTC2960CDC-2 datasheet, LTC2960CDC-2 pinout, LTC2960CDC-2 application, or LTC2960CDC-2 equivalent, key selection criteria include its 36V open-drain RST/OUT outputs, IN– input configuration, 200ms timeout, DC8 DFN package, and compatibility with manual reset and external resistive threshold programming.

Technical Context

The LTC2960CDC-2 integrates a precision 400mV internal reference with dual comparators: one monitors the ADJ input for reset generation with 2.5% hysteresis, while the second uses the IN– input for inverting-mode voltage detection. Its 200ms reset timeout is fixed-no RT pin-distinguishing it from -1/-2 variants.

It supports 36V open-drain outputs (RST and OUT), enabling direct interface with higher-voltage logic or external pull-ups up to 36V. The MR input accepts logic-level or push-button activation with 0.4V threshold and 20µs minimum pulse width, and exhibits ±0.35µA low-current sink capability at 400mV.

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 LTC2960CDC-2, the IDC-2 and HDC-2 variants retain identical electrical behavior and pin compatibility but extend temperature range support-making them drop-in replacements where thermal robustness is prioritized over commercial-grade cost optimization.

Availability

LTC2960CDC-2 is available at Aetrix Electronics and suitable for battery-powered equipment, portable instrumentation, and security systems requiring stable component supply with guaranteed long-term availability.

Supply support for LTC2960CDC-2 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, documentation, and manufacturing continuity for the LTC portfolio.

The LTC2960 family was engineered for ultra-low-power, high-voltage supervision in battery management and power integrity applications-emphasizing nanoscale current draw, wide input range, and configurable dual-threshold monitoring.

FAQ

What is the function of the RT pin on LTC2960CDC-2?

The RT pin is not functional on LTC2960CDC-2. This variant has a fixed 200ms reset timeout period and does not support timeout selection. Pin 2 (labeled RT/DVCC in the datasheet) is a no-connect terminal. Unlike LTC2960-1/-2 versions, LTC2960CDC-2 omits RT functionality entirely, simplifying design for applications requiring only the 200ms delay.

Does LTC2960CDC-2 support active pull-up outputs?

No, LTC2960CDC-2 does not support active pull-up outputs. It belongs to the LTC2960-2 family variant, which provides 36V open-drain RST and OUT outputs only. Active pull-up (DVCC-driven) is exclusive to LTC2960-3/-4 variants. For LTC2960CDC-2, external pull-up resistors to any voltage ≤36V are required to establish logic-high states.

What is the maximum input voltage allowed on the ADJ, IN+, or IN– pins of LTC2960CDC-2?

The absolute maximum voltage on ADJ, IN+, or IN– pins is –0.3V to +3.5V. Exceeding +3.5V risks permanent damage. When monitoring higher voltages (e.g., 24V battery), a resistive divider must scale the signal to ≤3.5V at the input pin. For example, a 12V rail requires ≥3.43:1 attenuation to stay within limit at worst-case tolerance.

Can LTC2960CDC-2 be used to monitor both overvoltage and undervoltage conditions simultaneously?

Yes, LTC2960CDC-2 can monitor both conditions using its dual-comparator architecture: ADJ detects undervoltage (falling threshold), while IN– detects overvoltage (rising threshold). By configuring separate resistive dividers, one can set ADJ for 10.5V undervoltage cutoff and IN– for 12.6V overvoltage alarm-enabling comprehensive battery health supervision in a single IC.

What is the leakage current specification for the IN– input of LTC2960CDC-2?

The IN– input leakage current for LTC2960CDC-2 is ±0.1nA at –40°C to 85°C and ±1nA at –40°C to 125°C. This ultra-low leakage enables use of high-value resistive dividers (e.g., >10MΩ total) without introducing significant threshold error-critical for precision battery voltage monitoring with minimal power loss.