Analog Devices Inc. LTC2960HDC-3#TRMPBF

Overview

LTC2960HDC-3#TRMPBF from Analog Devices (formerly Linear Technology) is a nano-current, high-voltage two-input voltage supervisor IC designed for multicell battery and automotive power monitoring. It features 850nA quiescent current, 2.5V–36V VCC operating range, ±1.5% threshold accuracy over –40°C to 125°C, fixed 200ms reset timeout, and active pull-up RST/OUT outputs referenced to DVCC. It is used in battery-powered systems requiring low-power brown-out detection and controlled shutdown signaling.

For engineers reviewing the LTC2960HDC-3#TRMPBF datasheet, LTC2960HDC-3#TRMPBF pinout, LTC2960HDC-3#TRMPBF application, or LTC2960HDC-3#TRMPBF equivalent, key selection criteria include its 200ms fixed timeout, ADJ/IN+ dual-threshold configuration, DVCC-referenced push-pull outputs, and H-grade temperature rating up to 125°C - critical for automotive and industrial embedded supervision.

Technical Context

The LTC2960HDC-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 resistive dividers across wide input voltages.

Unlike variants with RT pin or open-drain outputs, this part replaces RT 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 down to VCC = 1.2V and supports manual reset activation with <20µs pulse width detection.

Key Specifications

Pinout & Package

Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (DC8); RoHS-compliant, lead-free finish; rated for –40°C to 125°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6369HUT+T and TPS3808G33DBVR, the LTC2960HDC-3#TRMPBF uniquely delivers dual-threshold supervision, nano-power operation, and DVCC-referenced push-pull outputs in an automotive-grade DFN - making it irreplaceable for battery-aware systems requiring coordinated reset and warning signals.

Availability

LTC2960HDC-3#TRMPBF is available at Aetrix Electronics and suitable for automotive electronics, industrial battery backup systems, and portable medical equipment requiring stable component supply across extended temperature ranges.

Supply support for LTC2960HDC-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 acquired Linear Technology in 2017 and maintains its precision analog and power management portfolio, emphasizing high-reliability, low-power, and automotive-qualified ICs.

The LTC2960 family was designed specifically for ultra-low-power, high-voltage supervision in battery-critical applications - targeting multicell battery packs, automotive subsystems, and industrial backup power where long service life and thermal robustness are mandatory.

FAQ

What is the function of the DVCC pin on the LTC2960HDC-3#TRMPBF?

The DVCC pin on the LTC2960HDC-3#TRMPBF 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 - eliminating external pull-up resistors and reducing static power. Grounding DVCC reconfigures both outputs as open-drain, allowing higher-voltage pull-up. This flexibility makes the LTC2960HDC-3#TRMPBF compatible with mixed-voltage microcontrollers without level shifters.

How does the LTC2960HDC-3#TRMPBF differ from the LTC2960-1 variant?

The LTC2960HDC-3#TRMPBF implements the LTC2960-3 option: it uses ADJ/IN+ inputs (not ADJ/IN–), has a fixed 200ms reset timeout (no RT pin), and features DVCC-referenced active pull-up outputs (not 36V open-drain). It also carries the H-grade temperature rating (–40°C to 125°C), whereas LTC2960-1 variants are typically C- or I-grade. These differences make the LTC2960HDC-3#TRMPBF optimal for automotive and high-reliability dual-threshold supervision.

Can the LTC2960HDC-3#TRMPBF monitor two different supply voltages simultaneously?

Yes - the LTC2960HDC-3#TRMPBF can monitor two distinct supply voltages using separate resistive dividers on ADJ and IN+. For example, ADJ can be configured for a 6.03V falling reset threshold on a main 12V rail, while IN+ monitors a 3.3V LDO output at 2.65V for early warning. Both thresholds derive from the same internal 400mV reference, ensuring matched accuracy and temperature stability across channels.

What is the minimum pulse width the MR input accepts on the LTC2960HDC-3#TRMPBF?

The MR input on the LTC2960HDC-3#TRMPBF detects pulses as short as 20µs, per the datasheet's tPW specification. This allows reliable manual reset triggering via compact push-button switches or fast digital signals. The internal 1µA pull-up ensures MR remains logic-high when floating, and the 0.4V threshold provides noise margin against ESD or coupling in noisy automotive environments.

Does the LTC2960HDC-3#TRMPBF require external components for basic operation?

No external components are strictly required for core supervision functionality. A 0.1µF ceramic capacitor between VCC and GND is recommended for decoupling, and DVCC should be bypassed with 0.1µF to GND when used. Resistive dividers on ADJ and IN+ are necessary only to set custom thresholds - their values are determined by desired trip voltages and leakage tolerance (e.g., 8MΩ total for <1% error at 85°C). No timing capacitors or external hysteresis components are needed.