Analog Devices Inc. LTC2960CDC-4#TRMPBF

Overview

LTC2960CDC-4#TRMPBF from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-threshold voltage supervisor IC designed for battery monitoring and system reset control in multicell Li-ion, automotive, and industrial power systems. It features ADJ/IN– dual-input architecture, 200ms fixed reset timeout, active pull-up RST/OUT outputs referenced to DVCC, and operates from 2.5V to 36V supply with only 850nA quiescent current. It is used to generate precise low-battery alerts and regulator UVLO signals in portable medical devices.

For engineers reviewing the LTC2960CDC-4#TRMPBF datasheet, LTC2960CDC-4#TRMPBF pinout, LTC2960CDC-4#TRMPBF application, or LTC2960CDC-4#TRMPBF equivalent, key selection criteria include its IN– input polarity for overvoltage detection, DVCC-referenced push-pull output logic, –40°C to 125°C extended temperature range, and compatibility with 1.6V–5.5V logic supplies - critical for automotive body control modules and battery management subsystems.

Technical Context

The LTC2960CDC-4#TRMPBF implements two independent comparators: one monitors the ADJ input for reset generation with 0.4V internal reference and 2.5% hysteresis, while the second uses the IN– input for overvoltage detection with 0.4V threshold and 5% falling hysteresis. Its reset timeout is fixed at 200ms and non-adjustable, distinguishing it from RT-pin variants.

Unlike open-drain versions, this variant replaces the RT pin with DVCC to enable active pull-up outputs driven to DVCC voltage (1.6V–5.5V), eliminating external pull-up resistors and reducing static power. Grounding DVCC reconfigures RST/OUT as open-drain outputs compatible with 36V rail sensing.

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 TLV809E33DBVR and MAX6326LT29D3+T, the LTC2960CDC-4#TRMPBF uniquely delivers dual-threshold supervision (ADJ + IN–), 36V operation, and nano-power consumption - making it irreplaceable for multicell battery safety-critical functions where overvoltage and undervoltage must be independently monitored with guaranteed timing.

Availability

LTC2960CDC-4#TRMPBF is available at Aetrix Electronics and suitable for automotive body control modules, battery management systems, and portable medical equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for LTC2960CDC-4#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) 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 system supervision in battery-powered and automotive applications - emphasizing nanoscale quiescent current, wide input voltage tolerance, and dual-threshold flexibility for safety-critical voltage monitoring.

FAQ

What is the function of the DVCC pin on the LTC2960CDC-4#TRMPBF?

The DVCC pin on the LTC2960CDC-4#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 (push-pull) output behavior - driving RST/OUT high to DVCC voltage instead of relying on external pull-up resistors. Grounding DVCC configures both outputs as open-drain, allowing them to interface with higher-voltage rails up to 36V. This dual-mode capability makes the LTC2960CDC-4#TRMPBF adaptable to diverse logic families without additional level-shifting circuitry.

How does the LTC2960CDC-4#TRMPBF differ from the LTC2960-1/LTC2960-2 variants?

The LTC2960CDC-4#TRMPBF differs from LTC2960-1/LTC2960-2 variants in three key ways: (1) it uses DVCC instead of RT for logic supply configuration (no selectable 15ms/200ms timeout), (2) it employs IN– input polarity for the secondary comparator (enabling overvoltage detection), and (3) it provides active pull-up RST/OUT outputs rather than 36V open-drain. These differences make the LTC2960CDC-4#TRMPBF ideal for applications requiring deterministic 200ms reset timing, overvoltage flagging, and low-power logic-domain interfacing - unlike the RT-selectable and open-drain variants optimized for generic reset-only use cases.

Can the LTC2960CDC-4#TRMPBF monitor a 24V battery directly?

No, the LTC2960CDC-4#TRMPBF cannot monitor a 24V battery directly on its ADJ or IN– pins, as their absolute maximum rating is 3.5V. To supervise 24V, external resistive dividers must scale the voltage down to ≤3.5V - for example, a 60:1 divider reduces 24V to 0.4V, matching the internal 400mV threshold. The VCC pin accepts 24V directly, but input pins require scaling. The datasheet specifies that the maximum monitored voltage is 8.75× the programmed threshold; thus, a 3.0V threshold requires input ≤26.25V. Proper divider design must also account for input leakage (±1nA) to maintain <1% error.

What is the purpose of the manual reset (MR) input on the LTC2960CDC-4#TRMPBF?

The MR input on the LTC2960CDC-4#TRMPBF provides hardware-initiated reset capability: pulling MR low forces RST and OUT low immediately, regardless of ADJ or IN– voltage states. After MR returns high, both outputs remain low for the full 200ms timeout period before releasing - ensuring clean system restart. MR has a logic threshold of 0.4V–1.4V, supports push-button switches, and draws only ±1µA. This feature enables user-triggered recovery, watchdog reset injection, or forced shutdown sequencing in safety-critical applications like automotive battery disconnect modules.

Is the LTC2960CDC-4#TRMPBF qualified for automotive applications?

Yes, the LTC2960CDC-4#TRMPBF is qualified for automotive applications: its H-grade variants (e.g., LTC2960HDC-4#TRMPBF) are specified for –40°C to 125°C and meet AEC-Q100 stress testing requirements. While the C-grade LTC2960CDC-4#TRMPBF is rated for 0°C to 70°C, it shares identical electrical specifications and packaging with automotive-grade versions. Designers targeting under-hood use should select the H-grade part, but the C-grade is suitable for cabin-mounted modules (e.g., infotainment, HVAC controls) where ambient temperatures remain within its specified range. Both grades use the same DFN-8 package and pinout.