Analog Devices Inc./Maxim Integrated DS2760BE-025

Overview

DS2760BE-025 from Maxim Integrated is a high-precision Li+ battery monitor IC with integrated 25mΩ internal sense resistor, 12-bit bidirectional current measurement (0.625mA LSB), ±1.9A dynamic range, 4.88mV voltage resolution, and 0.125°C temperature resolution. It delivers overvoltage (4.35V), undervoltage, and overcurrent protection for single-cell lithium-ion packs in portable medical devices and power tools.

For engineers reviewing the DS2760BE-025 datasheet, DS2760BE-025 pinout, DS2760BE-025 application, or DS2760BE-025 equivalent, key selection criteria include its TSSOP-16 package, 1-Wire interface with unique 64-bit address, zero-volt recovery charge path, lockable EEPROM for secure battery data, and programmable I/O for pack-level control.

Technical Context

The DS2760BE-025 implements a dedicated analog front-end with dual current-sense inputs (IS1/IS2), on-chip thermal sensor, and precision voltage reference to support simultaneous 12-bit current, 10-bit voltage, and 10-bit temperature acquisition every 88ms. Its protection logic executes autonomous overvoltage (VOV = 4.35V), undervoltage (VUV), and short-circuit detection with configurable delays (tOVD, tUVD, tSCD).

It uses a 1-Wire interface for host communication, supporting read/write access to 32-byte instrumentation registers, 32-byte lockable EEPROM (blocks 0–1), and 16-byte SRAM. The device defaults to Sleep Mode at power-up and wakes via PLS (charger detect), PS (power switch), or DQ (bus activity) with active current ≤90µA and sleep current ≤2µA.

Key Specifications

Pinout & Package

DS2760BE-025 is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed thermal pad. Pin functions are validated per Maxim's official DS2760 datasheet Rev. 3 (2006) and mechanical drawing 16tssop.pdf.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Li+ battery monitor applications.

Compared with DS2760BE-025, BQ27426YZFT trades 1-Wire simplicity and integrated sense resistor for I²C flexibility and finer current resolution, while MAX17048G+T replaces hardware protection with algorithmic fuel gauging-making DS2760BE-025 uniquely suited for cost-sensitive, self-contained Li+ safety monitoring where minimal host intervention is critical.

Availability

DS2760BE-025 is available at Aetrix Electronics and suitable for portable medical devices, cordless power tools, consumer wearables, and industrial handhelds requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for DS2760BE-025 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

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.

The DS2760BE-025 belongs to Maxim's battery management IC product line, designed specifically for cost-sensitive, single-cell Li+ battery packs requiring autonomous safety protection, accurate instrumentation, and secure nonvolatile data storage in compact TSSOP packages.

FAQ

What is the overvoltage threshold setting for DS2760BE-025?

The DS2760BE-025 has a fixed overvoltage threshold of 4.35V, as indicated by the "B" suffix in its part number per Maxim's ordering guide. This value triggers the CC pin to disable the external charge FET when cell voltage exceeds 4.35V for longer than the overvoltage delay (tOVD). It cannot be adjusted via register writes and differs from the DS2760AE-025 variant (4.275V).

Does DS2760BE-025 require an external current sense resistor?

No, DS2760BE-025 does not require an external current sense resistor because it integrates a precision 25mΩ resistor internally between SNS and VSS. This configuration delivers 0.625mA LSB current resolution and ±1.9A dynamic range, eliminating BOM cost and layout sensitivity associated with external shunts.

How does DS2760BE-025 support zero-volt battery recovery?

DS2760BE-025 enables zero-volt recovery by providing a current-limited charge path from the PLS pin to VDD when VDD falls below 3V. This gently recharges deeply depleted cells to a level where normal charging can resume, and is activated automatically during undervoltage-induced Sleep Mode without host intervention.

What memory types are available on DS2760BE-025?

DS2760BE-025 provides three memory types: 32-byte lockable EEPROM (addresses 20h–3Fh, split into two 16-byte blocks), 16-byte general-purpose SRAM (80h–8Fh), and 32-byte register space (00h–1Fh) for real-time instrumentation and control. EEPROM blocks can be permanently locked to prevent unauthorized modification of safety-critical data.

Can DS2760BE-025 operate with a 1-Wire bus powered only by parasite power?

Yes, DS2760BE-025 supports parasite-power mode on the 1-Wire bus using only the DQ line, as confirmed by its 90µA active current and 2µA sleep current specifications. However, VDD must still be connected to the Li+ cell for analog measurement reference and protection circuit operation - parasite power alone is insufficient for full functionality.