Analog Devices Inc. LTC2960IDC-3#TRMPBF

Overview

LTC2960IDC-3#TRMPBF from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-comparator supervisor IC designed for battery voltage monitoring and system reset control in multicell Li-ion, automotive, and industrial power 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 (1.6V–5.5V). It is used in portable medical devices to ensure safe shutdown before deep discharge.

For engineers reviewing the LTC2960IDC-3#TRMPBF datasheet, LTC2960IDC-3#TRMPBF pinout, LTC2960IDC-3#TRMPBF application, or LTC2960IDC-3#TRMPBF equivalent, key selection criteria include its 200ms fixed timeout, IN+ input configuration, DVCC-referenced push-pull outputs, –40°C to 85°C temperature grade, and compatibility with high-impedance resistive threshold dividers for precision battery monitoring.

Technical Context

The LTC2960IDC-3#TRMPBF 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 configurable status signaling with 5% hysteresis. Its internal 400mV reference enables precise threshold setting via external resistor dividers, and leakage-limited input design ensures <1nA error contribution at ≤85°C.

Unlike LTC2960-1/-2 variants, this part replaces the RT pin with DVCC to support logic-level output drive - RST and OUT are actively pulled to DVCC when high, eliminating external pull-up resistors and reducing static power. Grounding DVCC reconfigures outputs as open-drain, enabling interface flexibility across 1.6V–5.5V logic domains.

Key Specifications

Pinout & Package

Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (pin 9), rated for –40°C to 85°C operation. RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326TUT46+T and TPS3808G33DBVR, the LTC2960IDC-3#TRMPBF uniquely delivers nano-power dual-threshold supervision with configurable logic-level outputs in a compact DFN, enabling integrated battery health monitoring and controlled shutdown without additional ICs or passive components.

Availability

LTC2960IDC-3#TRMPBF is available at Aetrix Electronics and suitable for portable medical monitors, automotive body control modules, industrial IoT edge sensors, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for LTC2960IDC-3#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.

The LTC2960 family was developed by Linear Technology to address ultra-low-power, high-voltage supervision needs in battery-critical applications - emphasizing precision threshold matching, minimal quiescent current, and flexible output configurations for next-generation portable and automotive systems.

FAQ

What is the function of the DVCC pin on the LTC2960IDC-3#TRMPBF?

The DVCC pin on the LTC2960IDC-3#TRMPBF serves as the logic supply reference for the RST and OUT outputs. When connected to a 1.6V–5.5V supply, it enables active-pull-up operation - driving outputs high to DVCC voltage level. Grounding DVCC reconfigures both outputs as open-drain, requiring external pull-up resistors. This dual-mode capability allows seamless interfacing with diverse logic families without additional level-shifting circuitry.

Can the LTC2960IDC-3#TRMPBF monitor two different voltage rails simultaneously?

No - the LTC2960IDC-3#TRMPBF monitors a single voltage rail via resistive dividers applied to both ADJ and IN+ inputs. While ADJ and IN+ share the same internal 400mV reference and can be configured for different falling thresholds (e.g., 6.4V warning and 6.0V reset), they track the same monitored source. To supervise two independent rails, two separate LTC2960IDC-3#TRMPBF devices or a multi-rail supervisor like the LTC2966 would be required.

What is the minimum recommended resistor value for the ADJ input divider network?

The minimum recommended total divider resistance for the ADJ input is governed by input leakage current: to limit error to <1%, the divider current should exceed 100× the sum of input leakage currents (≤0.2µA for LTC2960IDC-3#TRMPBF at ≤85°C). For a 6V threshold, a typical design uses R1=499kΩ, R2=34kΩ, R3=7.5MΩ (total ~8MΩ), yielding ~750nA current - well above the 0.2µA requirement and ensuring <0.1% threshold error from leakage.

Does the LTC2960IDC-3#TRMPBF provide hysteresis on both ADJ and IN+ inputs?

Yes - the LTC2960IDC-3#TRMPBF provides built-in hysteresis on both inputs: 2.5% (≈10mV) on ADJ for reset recovery and 5% (≈20mV) on IN+ for status recovery. This hysteresis prevents output chatter during slow-moving or noisy supply transitions. External hysteresis can be added to IN+ using a feedback resistor (R6) as shown in Figure 6 of the datasheet, but ADJ hysteresis is fixed and non-adjustable.

How does the manual reset (MR) function interact with the automatic reset timeout?

When the MR pin is pulled low on the LTC2960IDC-3#TRMPBF, RST is forced low immediately. After MR returns high, RST remains low for the full 200ms reset timeout period - identical to the delay triggered by ADJ recovery. This ensures deterministic reset duration regardless of trigger source. The MR input has a 0.4V–1.4V logic threshold and internal 1µA pull-up, eliminating need for external biasing in most push-button implementations.