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Analog Devices Inc./Maxim Integrated DS2760E8000001/T&R
- Part No.:
- DS2760E8000001/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DS2760E8000001/T&R.pdf
- Description:
- IC BATT MONITOR PRECISION LI+
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
DS2760E8000001/T&R from Maxim Integrated is a high-precision Li+ battery monitor IC with integrated 25mΩ internal sense resistor, 12-bit bidirectional current measurement (±1.9A, 0.625mA LSB), 4.88mV voltage resolution, and 0.125°C temperature resolution via on-chip sensor. It delivers overvoltage, undervoltage, and overcurrent/short-circuit protection for single-cell lithium-ion packs in portable medical devices and power tools.
For engineers reviewing the DS2760E8000001/T&R datasheet, DS2760E8000001/T&R pinout, DS2760E8000001/T&R application, or DS2760E8000001/T&R equivalent, key selection criteria include its 1-Wire interface with unique 64-bit address, zero-volt battery recovery charge path, lockable EEPROM for secure battery data storage, and programmable I/O for pack-level control of LEDs or switches.
Technical Context
The DS2760E8000001/T&R implements a dedicated analog front-end with dual current-sense inputs (IS1/IS2), voltage sensing on VIN, and thermal sensing via integrated silicon diode. Its protection logic uses configurable thresholds-including 4.275V overvoltage and undervoltage detection-with fixed delays (tOVD, tUVD) and automatic FET gate control via CC/DC outputs.
It operates in two power modes: Active Mode (90μA max) for continuous measurement and accumulation, and Sleep Mode (2μA max) triggered by DQ low >2s, VIN < VUV, or SWAP command. Recovery from deep discharge is enabled via PLS-to-VDD current-limited path when VDD < 3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Measurement | 12-bit bidirectional, ±1.9A range, 0.625mA LSB with internal 25mΩ sense resistor |
| Voltage Resolution | 4.88mV LSB over 0–4.75V range, stored in two's-complement Voltage Register (addresses 0C–0D) |
| Temperature Resolution | 0.125°C LSB over –40°C to +127°C, using integrated on-die sensor (addresses 18–19) |
| Protection Thresholds | Overvoltage = 4.275V, Undervoltage = 2.5V, Overcurrent = ±1.9A (configurable via EEPROM) |
| Memory Resources | 32 bytes lockable EEPROM (blocks 0/1), 16 bytes SRAM, all accessible via 1-Wire interface |
| Power Consumption | 90μA max active current; 2μA max sleep current; supports battery-powered long-life operation |
| Interface | Dallas 1-Wire® (single-conductor, open-drain DQ), factory-programmed 64-bit unique address (family code 30h) |
Pinout & Package
DS2760E8000001/T&R is housed in a 16-pin TSSOP package (JEDEC MO-153, 5mm × 4.4mm × 1.2mm). Pin assignments are validated per Maxim's official mechanical drawing 16tssop.pdf and DS2760 datasheet Rev. 0, with pins 11/12/13 as VSS ground connections and SNS connected to internal 25mΩ sense resistor.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC | Charge Control Output | Drives external p-channel high-side FET gate to disable charging during overvoltage or charge overcurrent |
| DC | Discharge Control Output | Drives external p-channel high-side FET gate to disable discharging during undervoltage, discharge overcurrent, or short circuit |
| DQ | 1-Wire Data I/O | Single-wire bidirectional communication line with internal 1μA pull-down; enables multi-device daisy-chain on shared bus |
| PIO | Programmable I/O | Open-drain output/input controllable via Special Feature Register; used for LED drive or switch monitoring in battery pack |
| PLS | Pack Positive Terminal Input | Monitors charger attachment; provides recovery charge path from PLS to VDD when cell is deeply depleted (VDD < 3V) |
| PS | Power Switch Sense Input | Internally pulled to VDD with 1μA source; detects low-impedance connection to VSS to wake device from Sleep Mode |
| VIN | Voltage Sense Input | Measures cell voltage referenced to VSS; weak internal pull-up to VDD ensures valid reading during low-power states |
| VDD | Power Supply Input | Accepts 2.5V–5.5V supply from Li+ cell anode; powers internal circuitry and bias networks |
| VSS | Device Ground | Primary reference for all analog measurements; connects directly to Li+ cell cathode; pins 11/12/13 are bonded internally |
| SNS | Sense Resistor Connection | Connects to negative terminal of battery pack; internal 25mΩ resistor bridges SNS–VSS in this variant |
| IS1 / IS2 | Current Sense Inputs | Filter inputs (4.7kΩ + 0.1μF) measuring differential voltage across sense element; define VIS = VIS1 – VIS2 for bidirectional current sign |
Key Features
| Feature | Design Value |
|---|---|
| Zero-Volt Battery Recovery | Enables safe reactivation of deeply discharged cells (<0.5V) via controlled PLS→VDD current path without external circuitry |
| Lockable EEPROM Security | Two 16-byte blocks (20h–2Fh, 30h–3Fh) can be permanently locked to ROM to protect calibration data and protection defaults |
| 1-Wire Multi-Drop Support | Unique 64-bit address allows up to 10+ DS2760E8000001/T&R units on single DQ line-ideal for multi-cell smart battery packs |
| Integrated Temperature Sensing | Eliminates need for external thermistor or NTC; on-die sensor calibrated to ±2°C accuracy over full operating range |
| Current Accumulation Engine | Hardware-based accumulator (addresses 10h–11h) tracks net charge flow in 0.25mAh increments for precise remaining capacity estimation |
Applications
| Portable Medical Devices | Power Tools |
|---|---|
Use Scenario: Rechargeable Li+ battery pack in handheld ultrasound or infusion pump requiring safety-critical overvoltage and short-circuit protection. IC Role / Device Role / Timing Role: Primary safety monitor and data acquisition node; performs real-time current accumulation and voltage trending for runtime prediction. Use Value: Enables FDA-compliant battery management with traceable EEPROM-stored calibration and fault logs, reducing BOM count by eliminating discrete sense resistors and thermistors. | Use Scenario: High-current 18V Li+ pack in cordless drill where rapid discharge protection and temperature monitoring prevent thermal runaway. IC Role / Device Role / Timing Role: Central protection controller interfacing with host MCU via 1-Wire; triggers DC FET shutdown within tSCD < 10ms during short circuit. Use Value: Delivers sub-10ms short-circuit response and 0.125°C temperature granularity-critical for detecting localized cell heating before catastrophic failure. |
| Wearable Fitness Trackers | Enterprise Two-Way Radios |
Use Scenario: Ultra-low-power wearable with coin-cell-sized Li+ battery needing extended shelf life and accurate state-of-charge reporting. IC Role / Device Role / Timing Role: Low-quiescent monitor in Sleep Mode (2μA); wakes on PS pin event or DQ activity to report accumulated current and voltage. Use Value: Extends shelf life beyond 12 months while maintaining ±2% SOC accuracy via hardware current integration and temperature-compensated offset correction. | Use Scenario: Ruggedized radio battery pack operating in extreme temperatures (-20°C to +60°C) requiring reliable undervoltage lockout and recovery. IC Role / Device Role / Timing Role: Safety supervisor enforcing VUV = 2.5V cutoff and enabling zero-volt recovery only when PLS voltage exceeds VDD – VTP. Use Value: Prevents irreversible copper shunting in cold environments by enforcing strict undervoltage release conditions and providing controlled recharge current (IRC). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Li+ battery monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ27426YZFT | TI fuel gauge with impedance tracking; no integrated protection FET drivers; requires external protection IC | Lacks CC/DC outputs-must pair with separate protector like BQ29700; adds PCB area and complexity | Select when advanced SOC modeling (impedance spectroscopy) is prioritized over integrated safety control |
| MAX17048G+T | Maxim standalone fuel gauge; 14-bit current ADC; no internal sense resistor; higher active current (120μA) | No overvoltage/undervoltage protection logic or FET drive capability-pure metrology device | Select when precise coulomb counting is required but protection is handled by companion IC or system-level firmware |
Compared with BQ27426YZFT and MAX17048G+T, DS2760E8000001/T&R uniquely integrates precision metrology, configurable protection logic, and FET drive outputs in one TSSOP package-reducing bill-of-materials and simplifying compliance-critical safety architecture.
Availability
DS2760E8000001/T&R is available at Aetrix Electronics and suitable for portable medical devices, power tools, wearables, and enterprise radios requiring stable component supply, long-term lifecycle support, and traceable sourcing for ISO 13485 and IEC 62366 programs.
Supply support for DS2760E8000001/T&R 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) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and automotive applications.
The DS2760 product line targets cost-sensitive, space-constrained Li+ battery packs requiring integrated safety monitoring, metrology, and 1-Wire communication-enabling smart battery functionality without external microcontrollers.
FAQ
What is the overvoltage protection threshold for DS2760E8000001/T&R?
The DS2760E8000001/T&R has a factory-configured overvoltage threshold of 4.275V, with a typical overvoltage delay (tOVD) of 1 second. This value is stored in EEPROM and can be modified by the host system via the Protection Register. The DS2760E8000001/T&R asserts the CC output high to disable charging when VIN exceeds this threshold for longer than tOVD, preventing Li+ cell damage during fast charging.
Does DS2760E8000001/T&R support zero-volt battery recovery?
Yes, DS2760E8000001/T&R supports zero-volt battery recovery through its PLS-to-VDD current-limited path. When VDD drops below 3V (e.g., due to deep discharge), the DS2760E8000001/T&R enables a controlled recovery charge current (IRC) from PLS to VDD. This safely raises VDD to operational levels before allowing normal charge FET activation-eliminating need for external recovery circuitry.
How does DS2760E8000001/T&R handle current measurement accuracy across temperature?
DS2760E8000001/T&R performs continuous internal compensation for current measurement offset caused by temperature and voltage variations. It also supports user-programmable offset bias (stored at EEPROM address 33h) in two's-complement format, applied to both internal and external sense resistor configurations. This ensures <±1% current measurement error over –40°C to +85°C ambient without external calibration.
Can DS2760E8000001/T&R operate with multiple units on a single 1-Wire bus?
Yes, DS2760E8000001/T&R supports multi-drop 1-Wire operation. Each unit has a unique factory-programmed 64-bit address (family code 30h), allowing up to 10+ devices on one DQ line. The host system selects individual DS2760E8000001/T&R units using the Match ROM command, enabling centralized monitoring of multi-cell battery packs without additional addressing hardware.
What memory types are available on DS2760E8000001/T&R and how are they used?
DS2760E8000001/T&R provides three memory types: 32 bytes of lockable EEPROM (blocks 0/1), 16 bytes of general-purpose SRAM, and register-mapped instrumentation memory. EEPROM stores critical nonvolatile data (e.g., protection defaults, calibration offsets); lockable blocks prevent accidental overwrite. SRAM holds temporary runtime data. All memory is accessed via 1-Wire commands-Read Data, Write Data, Copy Data, and Recall Data-with shadow RAM ensuring glitch-free writes.
DS2760E8000001/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Battery Monitor
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 1
- Fault Protection:
- Over Current, Over/Under Voltage, Short Circuit
- Interface:
- 1-Wire
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DS2760E8000001/T&R FAQ
1.How can I place an order for DS2760E8000001/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS2760E8000001/T&R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS2760E8000001/T&R reliable?
The price and inventory of DS2760E8000001/T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS2760E8000001/T&R is usually 5 days.
3.What payment methods are accepted for DS2760E8000001/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS2760E8000001/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS2760E8000001/T&R?
DS2760E8000001/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS2760E8000001/T&R order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS2760E8000001/T&R?
For technical support, including DS2760E8000001/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS2760E8000001/T&R requirements.
6.How does Aetrix verify that DS2760E8000001/T&R is sourced from the original manufacturer or authorized distributors?
All DS2760E8000001/T&R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS2760E8000001/T&R meets industry standards.
7.What is the process for return or replacement of DS2760E8000001/T&R?
All DS2760E8000001/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS2760E8000001/T&R, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS2760E8000001/T&R part is unused and in its original packaging.
Return procedure for DS2760E8000001/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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