DS2751E+

DS2751E+ Datasheet

DS2751 Multichemistry Battery

Part	Datasheet
DS2751E+	DS2751E+ (pdf)

Related Parts	Information
DS2751E+T&R	DS2751E+T&R
DS2751E+025/T&R	DS2751E+025/T&R

PDF Datasheet Preview
§ Available in Two Configurations - Internal 25mW 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 15.625mV LSB and ±64mV Dynamic Range § Current Accumulation - Internal Sense Resistor 0.25mAhr LSB - External Sense Resistor 6.25mVhr LSB § Voltage Measurement with 4.88mV Resolution § Temperature Measurement Using Integrated Sensor with 0.125°C Resolution § 32 Bytes of Lockable EEPROM § 16 Bytes of General-Purpose SRAM § Dallas Interface with Unique 64-Bit Device Address § Supports 1-Cell Li+/Polymer or 3-Cell Ni Battery Packs § 3mm Dimension of 8-Pin TSSOP Package Allows Mounting on Side of Thin Li+ and Li+/Polymer Cells Lead Free available § Low Power Consumption - Active Current 60mA typ , 90mA max - Sleep Current 1mA typ , 2mA max DS2751 Multichemistry Battery Fuel Gauge PIN CONFIGURATION VIN 1 VSS 22 PIO 3 VDD 42 8 DQ 7 SNS 6 IS2 5 IS1 DS2751E 8-Pin TSSOP Package Lead Free Available PIN DESCRIPTION VIN Voltage-Sense Input VSS Device Ground PIO Programmable I/O Pin VDD Power-Supply Input 2.5V to 5.5V IS1 Current-Sense Input IS2 Current-Sense Input SNS Sense Resistor Connection DQ Data Input/Output 1-Wire is a registered trademark of Dallas Semiconductor. 1 of 19 020105 DS2751 ORDERING INFORMATION PART MARKING TEMP RANGE DS2751E 2751E -20°C to +70°C 8-Pin TSSOP, External Sense Resistor DS2751E+ 2751E Note 1 -20°C to +70°C 8-Pin Lead Free TSSOP, External Sense Resistor DS2751E-025 2751R -20°C to +70°C 8-Pin TSSOP, 25mW Sense Resistor DS2751E+025 2751R Note 1 -20°C to +70°C 8-Pin Lead Free TSSOP, 25mW Sense Resistor DS2751E/T&R 2751E -20°C to +70°C DS2751E on Tape-and-Reel DS2751E+T&R 2751E Note 1 -20°C to +70°C DS2751E+ on Tape-and-Reel Lead Free DS2751E-025/T&R 2751R -20°C to +70°C DS2751E-025 on Tape-and-Reel DS2751E+025/T&R 2751R Note 1 -20°C to +70°C DS2751E+025 on Tape-and-Reel Lead Free Note 1 A “+” will be marked on the package near the Pin 1 indicator. The DS2751 multichemistry battery fuel gauge is a data-acquisition and information-storage device tailored for cost-sensitive and space-constrained 1-cell Li+/polymer or 3-cell Ni battery-pack applications. The DS2751 provides the key hardware components required to accurately estimate remaining capacity by integrating low-power, precision measurements of temperature, voltage, current, and current accumulation, as well as nonvolatile NV data storage, into the small footprint of a 3.0mm x 4.4mm 8-pin TSSOP package. Through its 1-Wire interface, the DS2751 gives the host system read/write access to status and control registers, instrumentation registers, and general-purpose data storage. Each device has a unique factoryprogrammed 64-bit net address that allows it to be individually addressed by the host system, supporting multibattery operation. The DS2751 performs temperature, voltage, and current measurement to a resolution sufficient to support process-monitoring applications such as battery charge control and remaining capacity estimation. Temperature is measured using an on-chip sensor, eliminating the need for a separate thermistor. Bidirectional current measurement and accumulation are accomplished using either an internal 25mW sense resistor or an external device. The DS2751 also features a programmable I/O pin that allows the host system to sense and control other electronics in the pack, including switches, vibration motors, speakers, and LEDs. Three types of memory are provided on the DS2751 for battery information storage EEPROM, lockable EEPROM, and SRAM. EEPROM memory saves important battery data in true NV memory that is unaffected by severe battery depletion, accidental shorts, or ESD events. Lockable EEPROM becomes ROM when locked to provide additional security for unchanging battery data. SRAM provides inexpensive storage for temporary data. 2 of 19 ABSOLUTE MAXIMUM RATINGS* Voltage on PIO Pin, Relative to VSS Voltage on All Other Pins, Relative to VSS Continuous Internal Sense Resistor Current Pulsed Internal Sense Resistor Current Operating Temperature Range Storage Temperature Range Soldering Temperature DS2751 -0.3V to +12V -0.3V to +6V ±2.5A ±50A for <100µs/s, <1000 Pulses -40°C to +85°C -55°C to +125°C See J-STD-020A Specification

PDF Datasheet Preview

§ Available in Two Configurations - Internal 25mW 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 15.625mV LSB and ±64mV Dynamic Range
§ Current Accumulation - Internal Sense Resistor 0.25mAhr LSB - External Sense Resistor 6.25mVhr LSB
§ Voltage Measurement with 4.88mV Resolution
§ Temperature Measurement Using Integrated Sensor with 0.125°C Resolution
§ 32 Bytes of Lockable EEPROM § 16 Bytes of General-Purpose SRAM § Dallas Interface with Unique 64-Bit

Device Address § Supports 1-Cell Li+/Polymer or 3-Cell Ni

Battery Packs § 3mm Dimension of 8-Pin TSSOP Package

Allows Mounting on Side of Thin Li+ and Li+/Polymer Cells Lead Free available § Low Power Consumption - Active Current 60mA typ , 90mA max - Sleep Current 1mA typ , 2mA max

DS2751 Multichemistry Battery

Fuel Gauge

PIN CONFIGURATION

VIN 1 VSS 22 PIO 3 VDD 42
8 DQ 7 SNS 6 IS2 5 IS1

DS2751E 8-Pin TSSOP Package Lead Free Available

PIN DESCRIPTION

VIN Voltage-Sense Input VSS Device Ground PIO Programmable I/O Pin VDD Power-Supply Input 2.5V to 5.5V IS1 Current-Sense Input IS2 Current-Sense Input SNS Sense Resistor Connection DQ Data Input/Output
1-Wire is a registered trademark of Dallas Semiconductor.
1 of 19
020105

DS2751
ORDERING INFORMATION

PART

MARKING TEMP RANGE

DS2751E
2751E
-20°C to +70°C 8-Pin TSSOP, External Sense Resistor

DS2751E+
2751E Note 1
-20°C to +70°C
8-Pin Lead Free TSSOP, External Sense Resistor

DS2751E-025
2751R
-20°C to +70°C 8-Pin TSSOP, 25mW Sense Resistor

DS2751E+025
2751R Note 1
-20°C to +70°C
8-Pin Lead Free TSSOP, 25mW Sense Resistor

DS2751E/T&R
2751E
-20°C to +70°C DS2751E on Tape-and-Reel

DS2751E+T&R
2751E Note 1
-20°C to +70°C DS2751E+ on Tape-and-Reel Lead Free

DS2751E-025/T&R
2751R
-20°C to +70°C DS2751E-025 on Tape-and-Reel

DS2751E+025/T&R
2751R Note 1
-20°C to +70°C

DS2751E+025 on Tape-and-Reel Lead Free

Note 1 A “+” will be marked on the package near the Pin 1 indicator.

The DS2751 multichemistry battery fuel gauge is a data-acquisition and information-storage device tailored for cost-sensitive and space-constrained 1-cell Li+/polymer or 3-cell Ni battery-pack applications. The DS2751 provides the key hardware components required to accurately estimate remaining capacity by integrating low-power, precision measurements of temperature, voltage, current, and current accumulation, as well as nonvolatile NV data storage, into the small footprint of a 3.0mm x 4.4mm 8-pin TSSOP package.

Through its 1-Wire interface, the DS2751 gives the host system read/write access to status and control registers, instrumentation registers, and general-purpose data storage. Each device has a unique factoryprogrammed 64-bit net address that allows it to be individually addressed by the host system, supporting multibattery operation.

The DS2751 performs temperature, voltage, and current measurement to a resolution sufficient to support process-monitoring applications such as battery charge control and remaining capacity estimation. Temperature is measured using an on-chip sensor, eliminating the need for a separate thermistor. Bidirectional current measurement and accumulation are accomplished using either an internal 25mW sense resistor or an external device. The DS2751 also features a programmable I/O pin that allows the host system to sense and control other electronics in the pack, including switches, vibration motors, speakers, and LEDs.

Three types of memory are provided on the DS2751 for battery information storage EEPROM, lockable EEPROM, and SRAM. EEPROM memory saves important battery data in true NV memory that is unaffected by severe battery depletion, accidental shorts, or ESD events. Lockable EEPROM becomes ROM when locked to provide additional security for unchanging battery data. SRAM provides inexpensive storage for temporary data.
2 of 19

ABSOLUTE MAXIMUM RATINGS*

Voltage on PIO Pin, Relative to VSS Voltage on All Other Pins, Relative to VSS Continuous Internal Sense Resistor Current

Pulsed Internal Sense Resistor Current Operating Temperature Range Storage Temperature Range Soldering Temperature

DS2751
-0.3V to +12V -0.3V to +6V ±2.5A ±50A for <100µs/s, <1000 Pulses -40°C to +85°C -55°C to +125°C See J-STD-020A Specification

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived DS2751E+ Datasheet file may be downloaded here without warranties.

Datasheet ID: DS2751E+ 508397