Analog Devices Inc. LTC2960IDC-1#TRPBF

Overview

LTC2960IDC-1#TRPBF from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage two-input voltage supervisor IC designed for multicell battery monitoring and system-level power supervision. It features 850nA quiescent current, 2.5V–36V supply range, ±1.5% threshold accuracy over –40°C to +85°C, adjustable ADJ/IN+ reset thresholds, and 36V open-drain RST/OUT outputs. It is used in battery-powered portable equipment to provide precise brown-out detection and controlled shutdown signaling.

For engineers reviewing the LTC2960IDC-1#TRPBF datasheet, LTC2960IDC-1#TRPBF pinout, LTC2960IDC-1#TRPBF application, or LTC2960IDC-1#TRPBF equivalent, key selection criteria include its 15ms/200ms selectable reset timeout, dual-comparator architecture with IN+ input, 36V open-drain output capability, and operation across industrial temperature range without external hysteresis components.

Technical Context

The LTC2960IDC-1#TRPBF integrates a precision 400mV internal reference with two independent comparators: one monitors the ADJ input for reset generation, the other monitors IN+ for auxiliary voltage condition detection. Its RT pin selects between 15ms and 200ms reset timeout periods after threshold recovery, ensuring stable assertion during supply transients.

It operates with 2.5V–36V VCC and supports manual reset via MR input with 20µs minimum pulse width. The 36V open-drain RST and OUT outputs interface directly with higher-voltage logic or enable inputs, while input leakage remains ≤±1nA at –40°C to +85°C, enabling high-impedance resistive divider configurations.

Key Specifications

Pinout & Package

Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (DC8), 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 MAX6326UT46D3+T and TPS3808G33DBVR, the LTC2960IDC-1#TRPBF uniquely supports 2.5V–36V operation, dual adjustable thresholds, 36V open-drain outputs, and nano-power consumption-making it the only option for high-voltage, battery-critical, and ultra-low-power industrial applications.

Availability

LTC2960IDC-1#TRPBF is available at Aetrix Electronics and suitable for battery-powered portable equipment, automotive power supervision, and industrial IoT sensor nodes requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for LTC2960IDC-1#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.

The LTC2960 family was designed specifically for ultra-low-power, high-voltage system supervision in battery-critical applications such as portable medical devices, automotive subsystems, and industrial edge sensors.

FAQ

What is the function of the RT pin on the LTC2960IDC-1#TRPBF?

The RT pin on the LTC2960IDC-1#TRPBF selects the reset timeout period: grounding RT configures a 15ms delay, while connecting RT to VCC sets a 200ms delay. This hardware-selectable feature eliminates external timing components and provides design flexibility for noise immunity versus fast recovery. The LTC2960IDC-1#TRPBF requires this pin; it is absent on LTC2960-3/LTC2960-4 variants, which default to 200ms.

Can the LTC2960IDC-1#TRPBF monitor two different supply voltages simultaneously?

Yes. The LTC2960IDC-1#TRPBF uses ADJ to monitor one voltage (e.g., main battery) for reset generation and IN+ to monitor a second voltage (e.g., regulated 3.3V rail) for auxiliary status signaling via the OUT pin. Both inputs reference the same 400mV internal comparator threshold, allowing independent, resistor-divider-configured falling thresholds with ±2mV matching. This dual-monitoring capability is intrinsic to the LTC2960IDC-1#TRPBF's architecture.

What is the maximum voltage the RST and OUT pins can tolerate on the LTC2960IDC-1#TRPBF?

The RST and OUT pins on the LTC2960IDC-1#TRPBF are rated for absolute maximum voltages of –0.3V to 40V, with guaranteed 36V open-drain operation. This allows direct connection to pull-up voltages exceeding VCC (e.g., 12V, 24V, or 36V rails) without level shifters. Operation above VCC is fully supported, making the LTC2960IDC-1#TRPBF suitable for high-side enable and UVLO signaling in multi-rail systems.

How does the LTC2960IDC-1#TRPBF achieve 850nA quiescent current?

The LTC2960IDC-1#TRPBF achieves 850nA typical quiescent current through proprietary nano-power biasing, a trimmed 400mV bandgap reference, and optimized comparator design that minimizes leakage and dynamic switching losses. This specification is guaranteed over the full –40°C to +85°C range and at VCC = 36V, enabling decade-long operation on small batteries. The LTC2960IDC-1#TRPBF maintains this current regardless of RT or MR state.

Is the LTC2960IDC-1#TRPBF pin-compatible with other variants like LTC2960IDC-2#TRPBF?

No. While both share the same DC8 package and pin count, the LTC2960IDC-1#TRPBF uses IN+ for its auxiliary comparator, whereas the LTC2960IDC-2#TRPBF uses IN–. Their pin functions differ at Pin 5 (IN+/IN–), making them electrically incompatible without schematic and layout changes. The LTC2960IDC-1#TRPBF must be used where non-inverting threshold detection is required; substitution requires redesign of the sensing network.