Analog Devices Inc. LTC2960CDC-4#TRPBF

Overview

LTC2960CDC-4#TRPBF from Analog Devices (formerly Linear Technology) is a nano-current, high-voltage two-input voltage supervisor IC designed for multicell battery monitoring and system-level power supervision. It features ADJ/IN– dual-threshold detection, fixed 200ms reset timeout, active pull-up RST/OUT outputs referenced to DVCC, and operates from 2.5V to 36V with only 850nA quiescent current. It is used in battery-powered automotive systems to detect low-battery conditions and initiate controlled shutdown.

For engineers reviewing the LTC2960CDC-4#TRPBF datasheet, LTC2960CDC-4#TRPBF pinout, LTC2960CDC-4#TRPBF application, or LTC2960CDC-4#TRPBF equivalent, key selection criteria include its IN– input configuration for overvoltage detection, DVCC-referenced active pull-up outputs, –40°C to 125°C extended temperature range, and compatibility with Li-ion battery stacks up to 8.4V.

Technical Context

The LTC2960CDC-4#TRPBF implements two independent comparators: one monitors the ADJ input for reset generation with 400mV threshold and 2.5% hysteresis, while the second uses the IN– input for overvoltage detection with 400mV threshold and 20mV hysteresis. Its internal 200ms reset timeout is fixed-no RT pin-and timing is guaranteed across –40°C to 125°C.

Output logic is configurable via DVCC: when DVCC is tied to 1.6V–5.5V, RST and OUT drive actively high to DVCC; grounding DVCC reconfigures them as open-drain. Input leakage is ≤±1nA at 125°C, enabling high-impedance resistive divider networks for precise threshold setting without significant error.

Key Specifications

Pinout & Package

Package: 8-lead (2mm × 2mm) plastic DFN, exposed pad (optional GND connection), 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 TLV809E33DBVR and MAX6326LT29D3+T, the LTC2960CDC-4#TRPBF uniquely delivers dual-threshold (ADJ + IN–), nano-power operation, and DVCC-configurable outputs in a compact DFN - essential for battery window monitoring where both over- and undervoltage faults must be independently signaled.

Availability

LTC2960CDC-4#TRPBF is available at Aetrix Electronics and suitable for automotive ECUs, portable medical devices, and industrial backup power systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for LTC2960CDC-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 precision analog and power management portfolio. Linear pioneered ultra-low-power supervisors and high-voltage monitoring ICs for demanding industrial and automotive applications.

The LTC2960 family was designed specifically for multicell battery supervision and high-voltage system monitoring, emphasizing nano-current operation, dual-threshold flexibility, and robustness in noisy, thermally aggressive environments.

FAQ

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

The DVCC pin on the LTC2960CDC-4#TRPBF sets the logic high level for the RST and OUT outputs. When DVCC is connected to 1.6V–5.5V, both outputs actively drive high to that voltage; when grounded, they operate as open-drain outputs requiring external pull-ups. This eliminates static current in active-pull-up mode and enables direct interfacing with diverse logic families without level shifters.

How does the LTC2960CDC-4#TRPBF differ from the LTC2960-2 variants?

The LTC2960CDC-4#TRPBF is the DFN-packaged, 0°C to 70°C grade variant of the LTC2960-4 family. Unlike LTC2960-2 (which offers selectable 15ms/200ms timeout via RT pin), the LTC2960CDC-4#TRPBF has a fixed 200ms timeout and replaces RT with DVCC. It also uses the IN– input for overvoltage detection and supports active pull-up outputs - distinguishing it from open-drain LTC2960-1/2 versions.

Can the LTC2960CDC-4#TRPBF monitor voltages above 36V?

Yes - the LTC2960CDC-4#TRPBF's VCC pin is rated to 40V absolute maximum, and its ADJ/IN– inputs are rated to 3.5V. To monitor higher voltages (e.g., 150V bus), use an external Zener clamp (e.g., BZX84C30) and current-limiting resistor (e.g., 143kΩ) at the VCC input, as documented in Linear's Application Note 2960 F07. The input dividers must scale monitored voltage to ≤3.5V at ADJ/IN–.

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

The LTC2960CDC-4#TRPBF ADJ input leakage is ≤±1nA at 125°C. To limit divider error to <1%, the total divider current should be ≥100× the sum of leakage currents (≥0.2µA). For a 6V threshold, a typical 8MΩ total resistance yields ~750nA current - well above this minimum. Standard 1% resistors like 499kΩ (R1), 34kΩ (R2), and 7.5MΩ (R3) are validated in the datasheet for accurate threshold setting.

Does the LTC2960CDC-4#TRPBF support hot-swap operation?

Yes - the LTC2960CDC-4#TRPBF supports hot-swap with proper front-end protection. As shown in Figure 7(b) of the datasheet, adding a 10–100Ω series resistor (e.g., 20Ω) before the VCC bypass capacitor damps resonant ringing caused by trace inductance during plug-in. This prevents VCC overshoot beyond the 40V absolute maximum rating while maintaining fast turn-on response (2µs RC time constant).