Battery Management

Battery Management Systems are the brains behind battery packs. They manage the output, charging and discharging and provide notifications on the status of the battery pack. They also provide critical safeguards to protect the batteries from damage. To ensure that the batteries are charged correctly and their life and use is optimised, battery management or fuel gauge systems have grown in parallel.


A battery-management system (BMS) typically consists of several functional blocks, including cut-off field-effect transmitters (FETs), fuel-gauge monitor, cell-voltage monitor, cell-voltage balance, real-time clock, temperature monitors, and a state machine.


Battery management systems vary in the functionality they provide and accordingly in their flexibility. Some of the battery management functionality is Monitoring, Computation, Environment management and Communication.


By knowing the level of charge in the battery, it is possible to detect the length of time that the equipment can operate before it is re-charged. By using various algorithms the battery management system is able to determine figures including the Sate of Charge or Depth of Discharge as well as the State of Health of the battery. The state of health of a battery is important because as a rechargeable battery or cell is used, its capacity reduces, and this needs to be computed by the battery management system to enable it to know the full charge level and capacity.


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ISL94202IRTZ-T7A
ISL94202IRTZ-T7A - Battery Supervisor & Monitor, Li-Ion, 8 Cell, I2C Interface, 4V to 36V Supply, TQFN-48

2728447

Battery Supervisor & Monitor, Li-Ion, 8 Cell, I2C Interface, 4V to 36V Supply, TQFN-48

RENESAS

BATTERY MONITOR, 3-8 CELL, I2C, TQFN-48; Battery Type:Li-Ion; IC Interface Type:I2C; No. of Batteries:8; Supply Voltage Min:4V; Supply Voltage Max:36V; Battery IC Case Style:TQFN; No. of Pins:48Pins; Operating Temperature Min:-40°C; Operating Temperature

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MAX77650EVKIT#
MAX77650EVKIT# - Evaluation Kit, MAX77650 Ultra-Low Power PMIC'S, 3-Output SIMO, Charger Optimized for Small Li+

2764938

Evaluation Kit, MAX77650 Ultra-Low Power PMIC'S, 3-Output SIMO, Charger Optimized for Small Li+

MAXIM INTEGRATED PRODUCTS

EVAL BRD, LI-ION/POLYMER BATTERY CHARGER; Kit Application Type:Power Management - Battery; Application Sub Type:Li-Ion / Polymer Battery Charger; Silicon Core Number:MAX77650; Silicon Manufacturer:Maxim Integrated Products; Kit Contents:Eval Board MAX776

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MAX77651EVKIT#
MAX77651EVKIT# - Evaluation Kit, MAX77651 Ultra-Low Power PMIC'S, 3-Output SIMO, Charger Optimized for Small Li+

2764937

Evaluation Kit, MAX77651 Ultra-Low Power PMIC'S, 3-Output SIMO, Charger Optimized for Small Li+

MAXIM INTEGRATED PRODUCTS

EVAL BRD, LI-ION/POLYMER BATTERY CHARGER; Kit Application Type:Power Management - Battery; Application Sub Type:Li-Ion / Polymer Battery Charger; Silicon Core Number:MAX77651; Silicon Manufacturer:Maxim Integrated Products; Kit Contents:Eval Board MAX776

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LC709203FQH-01TWG
LC709203FQH-01TWG - Battery Fuel Gauge, Li-Ion, 2.5V to 4.5V Supply, I2C Interface, WDFN-8

2728380

Battery Fuel Gauge, Li-Ion, 2.5V to 4.5V Supply, I2C Interface, WDFN-8

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BATTERY FUEL GAUGE, LI-ION, WDFN-8; Battery Management Function:Fuel Gauge; Battery Type:Li-Ion; Supply Voltage Min:2.5V; Supply Voltage Max:4.5V; Battery IC Case Style:WDFN; No. of Pins:8Pins; IC Interface Type:I2C; Operating Temperature Min:-40°C; Oper

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    BQ296216DSGT
    BQ296216DSGT - Li-Ion, Over Voltage Protector, 4.55V, 6.5S Delay, Undervolatge 2.5V, 4 Cell, 3V to 20V, WSON-8

    2747602

    Li-Ion, Over Voltage Protector, 4.55V, 6.5S Delay, Undervolatge 2.5V, 4 Cell, 3V to 20V, WSON-8

    TEXAS INSTRUMENTS

    OVER VOLTAGE PROTECTOR, LI-ION, WSON-8; Battery Type:Li-Ion; Battery Protection:Over Voltage; No. of Batteries:-; Shutdown Current:-; Battery IC Case Style:WSON; No. of Pins:8Pins; Supply Voltage Min:3V; Supply Voltage Max:20V; Operating Temperature Min:

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    MCP73833-AMI/MF
    MCP73833-AMI/MF - Battery Charger,  1 Cell Li-Ion, Li-Pol Battery, 6 V input, 4.2 V / 1 A charge, DFN-10

    2709765

    Battery Charger, 1 Cell Li-Ion, Li-Pol Battery, 6 V input, 4.2 V / 1 A charge, DFN-10

    MICROCHIP

    BATT CHARGER, LI-ION/POL, 1A, DFN-10; Battery Type:Li-Ion, Li-Pol; Input Voltage:6V; Battery Charge Voltage:4.2V; Charge Current Max:1A; Battery IC Case Style:DFN; No. of Pins:10Pins; No. of Series Cells:1; Operating Temperature Min:-40°C; Operating Temp

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    RT9458WSC
    RT9458WSC - Battery Charger,  1 Cell Li-Ion, Li-Pol Battery, 6 V input, 4.44 V / 1.55 A charge, WLCSP-20

    2729822

    Battery Charger, 1 Cell Li-Ion, Li-Pol Battery, 6 V input, 4.44 V / 1.55 A charge, WLCSP-20

    RICHTEK

    BATTERY CHARGER, LI-ION/LI-POL, WLCSP-20; Battery Type:Li-Ion, Li-Pol; Input Voltage:6V; Battery Charge Voltage:4.44V; Charge Current Max:1.55A; Battery IC Case Style:WLCSP; No. of Pins:20Pins; No. of Series Cells:1; Operating Temperature Min:-40°C; Oper

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    LTC2944CDD#PBF
    LTC2944CDD#PBF - BATTERY GAS GAUGE, DFN-8

    2708139

    BATTERY GAS GAUGE, DFN-8

    LINEAR TECHNOLOGY

    BATTERY GAS GAUGE, DFN-8; Battery Management Function:Current, Temperature & Voltage Measurement; Battery Type:Li-Ion; Supply Voltage Min:-; Supply Voltage Max:-; Battery IC Case Style:DFN; No. of Pins:8Pins; IC Interface Type:I2C, SMBus; Operating Tempe

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    LTC4368IMS-2#PBF
    LTC4368IMS-2#PBF - UV/OV AND REVERSE PROTECTOR, MSOP-10

    2726235

    UV/OV AND REVERSE PROTECTOR, MSOP-10

    LINEAR TECHNOLOGY

    UV/OV AND REVERSE PROTECTOR, MSOP-10; Battery Type:-; Battery Protection:Over / Under Voltage and Reverse Protection; No. of Batteries:-; Shutdown Current:5µA; Battery IC Case Style:MSOP; No. of Pins:10Pins; Supply Voltage Min:2.5V; Supply Voltage Max:60

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    NCP1855FCCT1G
    NCP1855FCCT1G - Battery Charger,  1 Cell Li-Ion Battery, 16 V input, 4.5 V / 2.5 A charge, Flip-Chip-25

    2728293

    Battery Charger, 1 Cell Li-Ion Battery, 16 V input, 4.5 V / 2.5 A charge, Flip-Chip-25

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    BATT CHRGR, LI-ION, 2.5A, FLP CHP 25; Battery Type:Li-Ion; Input Voltage:16V; Battery Charge Voltage:4.5V; Charge Current Max:2.5A; Battery IC Case Style:Flip-Chip; No. of Pins:25Pins; No. of Series Cells:1; Operating Temperature Min:-40°C; Operating Tem

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