Battery Management

Battery management devices are designed to work alongside battery powered applications. Adding a battery management IC to an electronic circuit can help to create a more efficient and reliable design which will last longer. Battery management can be used to reduce charging time, whilst enabling safe charging and low standby power usage. As electronic systems become more complex, it is essential to provide support through battery and power management ICs.

Battery management can be used with different types of battery, depending on the device. These battery types include lead-acid, Li-Ion, Lithium-Polyment, NiCD and NiMH.

Types of Battery Management IC

  • Battery Chargers are designed to help charge the battery quickly whilst keeping it cool. Chargers work with rechargeable battery packs.
  • Battery Fuel Gauges are available to give information on the charge of a battery. The fuel gauge gives information on the amount of charge available and the health status.
  • Battery Monitors (or Battery Backup Managers) provide monitoring and supervision of the battery performance. They can monitor the voltage, current and temperature to prevent any damage to the battery. Battery backup managers offer backup power from the battery in case of a power outage.

Where are Battery Management ICs used?

These devices are found in most systems that use a rechargeable battery power supply, such as portable and wearable devices. Applications include:

  • Smartphones
  • Laptops
  • Tablets
  • Cameras
  • Battery Powered Tools
  • Electric cars
  • Solar Panels
  • Automation

What is a BMS?

BMS stands for Battery Management System. This is an electronic circuit that monitors and protects a rechargable battery. Battery Management Systems feature devices such as a charge controller, gauge and surge protector, to ensure that the battery does not operate outside of its capabilities. Therefore a BMS provides protection and increases the potential lifespan of the battery.


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Description Price Battery Type Mounting Type IC Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Length Width Height Maximum Operating Temperature Maximum Output Current Maximum Output Voltage Minimum Operating Temperature
RS Stock No. 920-6358
Mfr. Part No.M4T28-BR12SH1
TWD245.10
Each (In a Tube of 23)
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 2.8 V 21.84 x 14.99 x 7.75mm 21.84mm 14.99mm 7.75mm +70 °C - - 0 °C
RS Stock No. 189-1239
Mfr. Part No.M4T28-BR12SH1
TWD240.00
Each
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 2.8 V 21.84 x 14.99 x 7.75mm 21.84mm 14.99mm 7.75mm +70 °C - - 0 °C
RS Stock No. 714-0861
Mfr. Part No.M4T32-BR12SH6
TWD365.00
Each
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 3 V 21.84 x 18.03 x 8.51mm 21.84mm 18.03mm 8.51mm +85 °C - - -40 °C
RS Stock No. 168-6814
Mfr. Part No.M4T32-BR12SH6
TWD330.00
Each (In a Tube of 23)
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 3 V 21.84 x 18.03 x 8.51mm 21.84mm 18.03mm 8.51mm +85 °C - - -40 °C
RS Stock No. 786-9960
Mfr. Part No.LTC4002ES8-8.4#PBF
TWD163.00
Each (In a Pack of 2)
units
Lithium-Ion Surface Mount Battery Charge Controller IC SOIC 8 8.9 to 22 V 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm +85 °C 95µA 8.484 V -40 °C
RS Stock No. 170-9358
Mfr. Part No.MP2603EJ-LF-P
TWD39.00
Each (On a Reel of 500)
units
Lithium-Ion Surface Mount Battery Charge Controller IC TSOT-23 5 4.75 to 5.25 V 3 x 1.7 x 0.9mm 3mm 1.7mm 0.9mm +85 °C 150mA - -20 °C
RS Stock No. 761-8796
Mfr. Part No.LT3652EMSE#PBF
TWD254.00
Each
units
Lead-Acid, LiFePO4, Lithium-Ion, Lithium-Polymer, NiCD, NiMH Surface Mount Battery Charge Controller IC MSOP 12 4.95 to 32 V 4.039 x 3 x 0.86mm 4.04mm 3mm 0.86mm +125 °C 2A 14.4 V -40 °C
RS Stock No. 917-5800
Mfr. Part No.MP2603EJ-LF-P
TWD65.40
Each (In a Pack of 5)
units
Lithium-Ion Surface Mount Battery Charge Controller IC TSOT-23 5 4.75 to 5.25 V 3 x 1.7 x 0.9mm 3mm 1.7mm 0.9mm +85 °C 150mA - -20 °C
RS Stock No. 889-5871
Mfr. Part No.MCP73831T-2ACI/OT
BrandMicrochip
TWD14.90
Each (On a Reel of 3000)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOT-23 5 3.75 to 6 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm +85 °C 500mA - -40 °C
RS Stock No. 738-6360
Mfr. Part No.MCP73831T-2ACI/OT
BrandMicrochip
TWD23.40
Each (In a Pack of 5)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOT-23 5 3.75 → 6 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm +85 °C - - -40 °C
RS Stock No. 162-8495
Mfr. Part No.BQ27210DRKR
TWD123.10
Each (On a Reel of 3000)
units
- Surface Mount Battery Fuel Gauge IC VSON 10 2.6 to 4.5 V 4.15 x 3.15 x 0.95mm 4.15mm 3.15mm 0.95mm +70 °C - - -20 °C
RS Stock No. 761-9651
Mfr. Part No.LTC6802IG-2#PBF
TWD861.00
Each
units
Lithium-Ion Surface Mount Battery Charge Controller IC SSOP 44 4 → 50 V 13.1 x 5.6 x 1.85mm 13.1mm 5.6mm 1.85mm +85 °C - 5.5 V -40 °C
RS Stock No. 827-9377
Mfr. Part No.BQ27210DRKR
TWD258.50
Each (In a Pack of 2)
units
- Surface Mount Battery Fuel Gauge IC VSON 10 2.6 to 4.5 V 4.15 x 3.15 x 0.95mm 4.15mm 3.15mm 0.95mm +70 °C - - -20 °C
RS Stock No. 714-0868
Mfr. Part No.M4T32-BR12SH1
TWD371.00
Each
units
- Through Hole Battery Backup IC SNAPHAT 4 - 21.84 x 14.99 x 6.99mm 21.84mm 14.99mm 6.99mm +70 °C - - 0 °C
RS Stock No. 125-0809
Mfr. Part No.ISL9237HRZ-T7A
BrandIntersil
TWD313.00
Each
units
Lithium-Ion Surface Mount Battery Charge Controller IC QFN 32 3.2 to 23.4 V 4 x 4 x 0.85mm 4mm 4mm 0.85mm +100 °C - 5.5 V -10 °C
RS Stock No. 851-4645
Mfr. Part No.LTC4089EDJC#PBF
TWD245.00
Each
units
Lithium-Ion Surface Mount Battery Charge Controller IC DFN 22 6 to 36 V 6 x 3 x 0.7mm 6mm 3mm 0.7mm +85 °C 1.2A 4.134 V -40 °C
RS Stock No. 123-0976
Mfr. Part No.ISL88739HRZ
BrandIntersil
TWD192.00
Each (In a Tube of 75)
units
Lithium-Ion Surface Mount Battery Charge Controller IC QFN 32 8 to 22 V 4 x 4 x 0.85mm 4mm 4mm 0.85mm - - - -
RS Stock No. 170-8161
Mfr. Part No.ISL9237HRZ-T7A
BrandIntersil
TWD203.30
Each (On a Reel of 250)
units
Lithium-Ion Surface Mount Battery Charge Controller IC QFN 32 3.2 to 23.4 V 4 x 4 x 0.85mm 4mm 4mm 0.85mm +100 °C - 5.5 V -10 °C
RS Stock No. 123-0994
Mfr. Part No.ISL88739HRZ
BrandIntersil
TWD226.00
Each (In a Pack of 2)
units
Lithium-Ion Surface Mount Battery Charge Controller IC QFN 32 8 to 22 V 4 x 4 x 0.85mm 4mm 4mm 0.85mm - - - -
RS Stock No. 145-6851
Mfr. Part No.BQ24600RVAT
TWD123.40
Each (On a Reel of 250)
units
- Surface Mount Battery Charge Controller IC VQFN 16 5 to 28 V 3.6 x 3.6 x 0.95mm 3.6mm 3.6mm 0.95mm +85 °C 10A 6.3 V -40 °C