Features and Benefits
- Li+ Safety Circuit
- Overvoltage Protection
- Overcurrent/Short-Circuit Protection
- Undervoltage Protection
- Host Alerted When Accumulated Current or Temperature Exceeds User-Selectable Limits
- 0V Battery Recovery Charge
- Available in Two Configurations:
- Internal 25mΩ Sense Resistor
- External User-Selectable Sense Resistor
- Current Measurement
- 12-Bit Bidirectional Measurement
- Internal Sense Resistor Configuration: 0.625mA LSB and ±1.9A Dynamic Range
- External Sense Resistor Configuration: 15.625µV LSB and ±64mV Dynamic Range
- Current Accumulation:
- Internal Sense Resistor: 0.25mAhr LSB
- External Sense Resistor: 6.25µVhr LSB
- Voltage Measurement with 4.88mV Resolution
- Temperature Measurement Using Integrated Sensor with 0.125°C Resolution
- System Power Management and Control Feature Support
- 32 Bytes of Lockable EEPROM
- 16 Bytes of General-Purpose SRAM
- Dallas 1-Wire® Interface with Unique 64-Bit Device Address
- Low-Power Consumption:
- Active Current: 60µA typ, 90µA max
- Sleep Current: 1µA typ, 2µA max
The DS2762 high-precision Li+ battery monitor is a data-acquisition, information-storage, and safety-protection device tailored for cost-sensitive battery pack applications. This low-power device integrates precise temperature, voltage, and current measurement, nonvolatile (NV) data storage, and Li+ protection into the small footprint of either a TSSOP package or flip-chip package. The DS2762 is a key component in applications including remaining capacity estimation, safety monitoring, and battery-specific data storage.
- Cell Phones/Smartphones
- Digital Cameras
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The DS2762K evaluation kit makes performance evaluation, software development, and prototyping with the DS2762 Lithium-Ion (Li+) battery monitor easy. The evaluation board interfaces to a PC through a DS9123 serial-port adapter and RJ-11 cable connection. The provided CD ROM contains all related data sheets along with the evaluation software, which can be run under any Windows® operating system.
The DS2762K evaluation software gives the user complete control of all functions of the DS2762. Separate control tabs allow the user access to all EEPROM and RAM memory locations, all control registers, and real-time updates of all monitored parameters. The software also incorporates a data-logging feature to monitor a cell over time and fuel-gauging algorithms to improve remaining capacity calculations based on specific cell characteristics.
The evaluation board circuit is designed to provide the DS2762 with accurate parameter measurements, allow the DS2762 to disable charging or discharging, and protect the DS2762 from ESD damage. Kit demonstration boards will vary as they are improved upon over time. For information on the demonstration board circuits, refer to the individual board data sheets located inside the documentation directory on the DS2762K CD ROM.
Features & Benefits
- Demonstrates the Capabilities of the DS2762 Li+ Battery Monitor, Including:
- Temperature Measurement
- Voltage Measurement
- Current Measurement
- Current Accumulation
- Temperature and Accumulated Current Alarms
- Information Storage
- Overvoltage/Undervoltage Protection
- Overcurrent/Short-Circuit Protection
- Interfaces to the Serial Port of a PC Running Windows OS
Documentation & Resources
DS2762 Reliability Data1/12/2023
Upgrading to the DS2762 from the DS276112/13/2004
Powering up a DS27623/9/2004
DS27xx Fuel Gauge Board Layout Techniques to Minimize Measurement Error9/16/2003
Increasing The DS276X Battery Monitor and Protector ESD Protection Levels5/29/2003
Compensating for Sense Resistor Self Heating12/18/2002
DS276x Product Comparison9/10/2002
Using the DS2760 or DS2761 Battery Monitor in Multiple-Cell Applications5/4/2001
Understanding Flip-Chip and Chip-Scale Package Technologies and Their Applications4/18/2007
Waking up a DS2761/DS27626/18/2004
1-Wire Communication with a Microchip PICmicro Microcontroller9/16/2003
Increasing the Fuel Gauge Dynamic Range3/7/2003
Calibrating the Offset Register of the DS276110/25/2002
Interfacing the DS2760 1-Wire High-Precision Li-Ion Battery Monitor and Protection IC in a Microcontroller Environment8/27/2002
1-Wire Communication Through Software5/30/2002
Inaccuracies of Estimating Remaining Cell Capacity with Voltage Measurements Alone5/21/2002
Sense Resistor Power Dissipation3/28/2002
Using the DS2480B Serial 1-Wire® Line Driver3/12/2002
Testing and Calibrating a DS2760 Li-Ion Battery Monitor and Protector Based Circuit5/29/2001
Lithium-Ion Cell Fuel Gauging with Maxim Battery Monitor ICs3/29/2001
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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