Analog Devices Inc. LTC2960IDC-4#TRPBF

Overview

LTC2960IDC-4#TRPBF from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-threshold voltage supervisor IC designed for battery and regulator monitoring in harsh environments. It features ADJ/IN– dual-input architecture, 200ms fixed reset timeout, active pull-up RST/OUT outputs referenced to DVCC, 850nA quiescent current at 36V, and operation from –40°C to 85°C. It is used in automotive battery disconnect circuits and portable equipment brown-out protection.

For engineers reviewing the LTC2960IDC-4#TRPBF datasheet, LTC2960IDC-4#TRPBF pinout, LTC2960IDC-4#TRPBF application, or LTC2960IDC-4#TRPBF equivalent, key selection criteria include its IN– input polarity, fixed 200ms timeout, DVCC-referenced active pull-up outputs, ±2mV ADJ/IN– threshold matching, and compatibility with 1.6V–5.5V logic supplies.

Technical Context

The LTC2960IDC-4#TRPBF implements two independent comparators: one monitors the ADJ input against a 400mV internal reference to generate RST, while the second compares the monitored voltage against the IN– input with identical 400mV reference to drive OUT. Both thresholds exhibit 1.5% max accuracy over temperature and 20mV typical hysteresis.

Its active pull-up output stage uses DVCC as the logic high rail-enabling direct interface with 1.6V–5.5V microcontrollers-while grounding DVCC reconfigures RST/OUT as open-drain. The device lacks RT pin (replaced by DVCC), confirming fixed 200ms reset timeout and eliminating external timing configuration.

Key Specifications

Pinout & Package

Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (DC8). RoHS-compliant, lead-free finish. Thermal resistance θ_JA = 80.6°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326UT29D3+ and TPS3808G33DBVR, the LTC2960IDC-4#TRPBF uniquely combines nano-power consumption, dual adjustable thresholds (ADJ + IN–), and DVCC-referenced active pull-up outputs-enabling precision window monitoring and direct low-voltage logic interfacing without external components.

Availability

LTC2960IDC-4#TRPBF is available at Aetrix Electronics and suitable for automotive power supervision, portable equipment brown-out protection, battery disconnect systems, and industrial regulator UVLO requiring stable component supply and long-term manufacturability.

Supply support for LTC2960IDC-4#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 high-performance analog product lines, including precision supervisors, amplifiers, and power management ICs for demanding industrial and automotive applications.

The LTC2960 family was designed specifically for ultra-low-power, high-voltage system supervision in battery-powered and automotive environments-emphasizing nanoscale quiescent current, wide input range, and robust threshold accuracy across temperature.

FAQ

What is the function of the DVCC pin on the LTC2960IDC-4#TRPBF?

The DVCC pin on the LTC2960IDC-4#TRPBF serves as the logic supply reference for the RST and OUT outputs. When connected to 1.6V–5.5V, it enables active pull-up operation with rail-to-rail logic-high levels. Grounding DVCC reconfigures both outputs as open-drain, allowing level shifting up to 36V. This dual-mode capability eliminates external pull-up resistors in most microcontroller interfaces and reduces static power dissipation.

How does the LTC2960IDC-4#TRPBF differ from the LTC2960-2 variants?

The LTC2960IDC-4#TRPBF is the industrial-grade (–40°C to 85°C), DFN-packaged variant of the LTC2960-4 family. It shares the ADJ/IN– input configuration, fixed 200ms reset timeout, and DVCC-referenced active pull-up outputs with all LTC2960-4 parts. Its "IDC" prefix denotes the temperature grade and "-4" suffix confirms the IN– polarity and output architecture-distinguishing it from -1/-2 (RT pin, open-drain) and -3 (ADJ/IN+, active pull-up) variants.

Can the LTC2960IDC-4#TRPBF monitor voltages above 36V?

Yes-the LTC2960IDC-4#TRPBF can safely monitor voltages above 36V using external resistive dividers. Its ADJ, IN+, and IN– pins have an absolute maximum rating of 3.5V, so a 10:1 divider allows monitoring up to 35V, and a 43:1 divider enables 150V rail supervision. The VCC pin itself is rated to 40V absolute max, so external clamping (e.g., Zener + series resistor) is required for transients exceeding that limit, as documented in Linear's Application Note 2960.

What is the minimum detectable pulse width on the MR input of the LTC2960IDC-4#TRPBF?

The minimum detectable pulse width on the MR input of the LTC2960IDC-4#TRPBF is 20µs, specified over the full operating temperature range. This allows reliable manual reset triggering using short-duration push-button events or digital control signals without requiring debouncing circuitry. After MR returns high, RST remains low for the full 200ms timeout period before releasing-ensuring deterministic system reset timing regardless of MR pulse duration.

Does the LTC2960IDC-4#TRPBF require external capacitors for stable operation?

Yes-the LTC2960IDC-4#TRPBF requires a 0.1µF ceramic capacitor between VCC and GND, placed as close as possible to the pins, to ensure noise immunity and prevent false resets during supply transients. If DVCC is used (active pull-up mode), a second 0.1µF capacitor is recommended between DVCC and GND. No timing or hysteresis capacitors are needed-the 200ms reset timeout and internal comparator hysteresis are fully integrated.