Lead Acid Battery Charger ICs
Last Updated: January 31, 2025
Description
Lead Acid Battery Charger ICs are integrated circuits specifically designed to manage the charging process of lead acid batteries. These ICs regulate the charge current and voltage to ensure the battery is charged efficiently and safely, preventing overcharging and extending the battery's lifespan.
Working Principle
Lead Acid Battery Charger ICs operate by controlling the charge current through a comparator and a programmable reference. The comparator monitors the voltage across a sense resistor, and its output controls a FET (Field Effect Transistor) to switch the charge voltage on and off. This process is crucial for maintaining the battery's health by preventing overcharging. The ICs also monitor the battery voltage continuously, activating a trickle charge when the voltage drops below a certain threshold to maintain a full charge. This precise control of the charging cycle is essential for quickly recharging the battery while ensuring safety and longevity .
Applications
Lead Acid Battery Charger ICs are used in a variety of applications where lead acid batteries are prevalent. Specific examples include automotive battery chargers, backup power systems, and uninterruptible power supplies (UPS). These ICs are also employed in industrial equipment and emergency lighting systems, where reliable battery performance is critical.
Advantages over other Battery Charger ICs
Lead Acid Battery Charger ICs offer specific advantages when used with lead acid batteries compared to other types of battery charger ICs. They are optimized for the unique charging requirements of lead acid batteries, such as the need for precise voltage control and the ability to handle the battery's specific charge and discharge cycles. This optimization ensures better performance and longer battery life compared to using a generic battery charger IC not tailored for lead acid batteries.
Limitations
One limitation of Lead Acid Battery Charger ICs is their specificity to lead acid batteries, which means they are not suitable for charging other types of batteries like lithium-ion or nickel-metal hydride without significant modifications. Additionally, lead acid batteries themselves have limitations, such as being heavier and having a lower energy density compared to other battery types, which can impact the overall system design and efficiency.
Considerations
When selecting a Lead Acid Battery Charger IC, several factors should be considered. Initial costs can vary depending on the complexity and features of the IC. Operating expenses are generally low, but the efficiency of the charging process can affect energy consumption. Durability is typically high, as these ICs are designed to withstand the rigors of regular use. Accuracy in voltage and current control is crucial for maintaining battery health, and this should be a key consideration in the selection process. Replacement and maintenance costs are generally low, but it's important to ensure that the IC is compatible with the specific battery and application requirements to avoid additional expenses.
from Texas Instruments
Switch-mode Lead-Acid Battery Charger with User-Selectable Charge Algorithms 16-PDIP -20 to 70 [See More]
- Cell Type: Lead Acid
- Features: Lead-Free
- Charger Type: Switching
- Package Type: PDIP,SOIC
from Win Source Electronics
Manufacturer: CUI Inc. Win Source Part Number: 1021344-DTB120225UC-P5P-FL. Type: Lead Acid. Termination Style: 2.1mm I.D. x 5.5mm O.D. x 12mm Female. Features: Multiple Charge Modes. Approvals: CE, cUL, UL. Mounting: Desktop. Voltage - Input: 100 to 240 VAC. Number of Cells: 1. Charge Current - Max:... [See More]
- Cell Type: Lead Acid
- Charge Current: 2250
- Cells: 1
- Operating Temperature: 0 to 40
from DigiKey
IC BATT CHG LEAD ACID 1CEL 64QFN [See More]
- Cell Type: Lead Acid
- Package Type: 64-WFQFN Exposed Pad
- Features: Over Voltage Protection
- Pins: 64
from RS Components, Ltd.
Multi-chem Battery Fuel Gauge TSSOP14 [See More]
- Cell Type: Li-Ion; NiCd; NiMH; Lead Acid; Lead-acid, lithium-ion, nicd, nimh
- Pins: 14
- Package Type: SSOP; Tssop
from Rochester Electronics
BQ2031 Switch-mode Lead-Acid Battery Charger with User-Selectable Charge Algorithms [See More]
- Cell Type: Lead Acid
- Package Type: DIP; PDIP; PDIP16
- Charger Type: Switching
from Texas Instruments
Integrated Charge Controller for Lead-Acid Batteries 16-SOIC [See More]
- Cell Type: Lead Acid
- Package Type: SOIC
- Features: Lead-Free
- Cells: 2 to 4
from Win Source Electronics
Manufacturer: CUI Inc. Win Source Part Number: 1021345-DTB120300UC-P5P-FL. Type: Lead Acid. Termination Style: 2.1mm I.D. x 5.5mm O.D. x 12mm Female. Features: Multiple Charge Modes. Approvals: CE, cUL, UL. Mounting: Desktop. Voltage - Input: 100 to 240 VAC. Number of Cells: 1. Charge Current - Max:... [See More]
- Cell Type: Lead Acid
- Charge Current: 3000
- Cells: 1
- Operating Temperature: 0 to 40
from DigiKey
BATT CTRL LEAD ACID 24TQFN [See More]
- Cell Type: Lead Acid
- Package Type: 24-WFQFN Exposed Pad
- Features: Over Voltage Protection; Over Current Protection
- Pins: 24
from RS Components, Ltd.
Charge Controller Lead-Acid [See More]
- Cell Type: Lead Acid; Lead-acid
- Pins: 16
- Package Type: DIP; Pdip
from Rochester Electronics
BQ2031 Switch-mode Lead-Acid Battery Charger with User-Selectable Charge Algorithms [See More]
- Cell Type: Lead Acid
- Package Type: SOIC; SOIC16
- Charger Type: Switching
from Texas Instruments
Linear Lead-Acid Battery Charger 16-SOIC -40 to 70 [See More]
- Cell Type: Lead Acid
- Features: Lead-Free
- Charger Type: Linear
- Package Type: PDIP,SOIC,PLCC
from Win Source Electronics
Manufacturer: Bel Power Solutions. Win Source Part Number: 761881-LOK4240-2RLDG. Series: Melcher LOK4000. Type: Lead Acid. Termination Style: Terminal Block. Operating Temperature Range: -10 °C ~ 50 °C. Approvals: cCSAus, CE, cULus, NEMKO. Mounting: DIN Rail. Voltage - Input: 85 ~ 264 VAC. [See More]
- Cell Type: Lead Acid
- Charge Current: 1800
- Cells: 1
- Operating Temperature: -10 to 50
from DigiKey
IC BATT CHG LEAD ACID 16DIP [See More]
- Cell Type: Lead Acid
- Package Type: 16-DIP (0.300", 7.62mm)
- Features: Lead-Free
- Pins: 16
from RS Components, Ltd.
Lead-Acid Batt. Charge Controller SOIC16 [See More]
- Cell Type: Lead Acid; Lead-acid
- Pins: 16
- Package Type: SOIC; Soic
from Texas Instruments
Enhanced Product Switch-mode Lead-Acid Battery Charger with Differential Current Sense 20-SOIC -55 to 125 [See More]
- Cell Type: Lead Acid
- Features: Lead-Free
- Charger Type: Switching
- Package Type: SOIC
from Win Source Electronics
Manufacturer: Bel Power Solutions. Win Source Part Number: 792846-LWR1601-6EM1. Series: Melcher W. Type: Lead Acid. Termination Style: Terminal Block. Operating Temperature Range: -40 °C ~ 60 °C. Features: LED Indicator. Approvals: cCSAus, CE, cULus, NEMKO. Mounting: DIN Rail. Voltage -... [See More]
- Cell Type: Lead Acid
- Charge Current: 5000
- Cells: 1
- Operating Temperature: -40 to 60
from DigiKey
IC BATT CHG LEAD ACID 20SOIC [See More]
- Cell Type: Lead Acid
- Package Type: 20-SOIC (0.295", 7.50mm Width)
- Features: Lead-Free
- Pins: 20
from RS Components, Ltd.
Battery Charge Controller MPPT VQFN16 [See More]
- Cell Type: Li-Ion; Lead Acid; Lead-acid, lifepo4, lithium-ion, lithium-polymer
- Pins: 16
- Package Type: Vqfn
from Win Source Electronics
Win Source Part Number: 977161-BQ25723RSNR. Category: Integrated Circuits (ICs) >PMIC - Battery Chargers. Package: Tape & Reel. Standard Package: 3,000. Mounting: SMD (SMT). Interface: I2C. Fault Protection: Over Current, Over Voltage. Voltage - Supply (Max): 26V. Battery Chemistry: Lead... [See More]
- Cell Type: Lead Acid
- Cells: 1 to 4
- Features: Over Voltage Protection; Over Current Protection
- Charge Current: 16256
from DigiKey
IC BATT CHG LEAD ACID 20PLCC [See More]
- Cell Type: Lead Acid
- Package Type: 20-LCC (J-Lead)
- Features: Lead-Free
- Pins: 20
from RS Components, Ltd.
BQ24092DGQR, LinearBatteryCharger [See More]
- Cell Type: Li-Ion; NiCd; NiMH; Lead Acid; Lead-acid, lithium-ion, nicd, nimh
- Pins: 10
- Package Type: SOIC; Soic
- Operating Temperature: 150
from Win Source Electronics
Win Source Part Number: 999811-BQ25720RSNR. Category: Integrated Circuits (ICs) >PMIC - Battery Chargers. Package: Tape & Reel. Standard Package: 3,000. Mounting: SMD (SMT). Fault Protection: Over Current, Over Temperature. Voltage - Supply (Max): 26V. Battery Chemistry: Lead Acid,... [See More]
- Cell Type: Lead Acid
- Cells: 1 to 4
- Features: Over Current Protection
- Charge Current: 16256
from DigiKey
IC BATT CHG LEAD ACID 16SOIC [See More]
- Cell Type: Lead Acid
- Package Type: 16-SOIC (0.295", 7.50mm Width)
- Features: Lead-Free
- Pins: 16
from RS Components, Ltd.
BQ76200PWR, BatteryMonitoring/Balancer [See More]
- Cell Type: Lead Acid; Lead-acid
- Pins: 16
- Package Type: SOIC; Soic
from Win Source Electronics
Win Source Part Number: 1350845-UC3906DWG4. Category: Integrated Circuits (ICs) - Power Management (PMIC) - Battery Chargers. Package: Tube. Standard Package: 40. Voltage - Supply (Max): 40V. Battery Chemistry: Lead Acid. Programmable Features: Current. Mounting Type: Surface Mount. Package / Case:... [See More]
- Cell Type: Lead Acid
- Operating Temperature: 0 to 70
- Package Type: SOIC
from DigiKey
IC BATT CHG LEAD ACID 20DIP [See More]
- Cell Type: Lead Acid
- Package Type: 20-DIP (0.300", 7.62mm)
- Features: Lead-Free
- Pins: 20
from RS Components, Ltd.
Linear Battery Charger, UC3906DW [See More]
- Cell Type: Lead Acid; Lead Acid
- Pins: 16
- Package Type: SOIC; SOIC-16
- Operating Temperature: 70
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 141256-BQ2031PN-A5. Packaging: Tube/Rail. Fault Protection: Over Temperature, Over Voltage. Battery Chemistry: Lead Acid. Number of Cells: 1. Current - Charging: Constant, Pulsed. Programmable Features: Current, Timer, Voltage. Charge Current... [See More]
- Cell Type: Lead Acid
- Package Type: DIP; PDIP; 16-PDIP
- Features: Over Voltage Protection
- Cells: 1
from DigiKey
IC BAT CHG LEAD ACID 1CEL 16SOIC [See More]
- Cell Type: Lead Acid
- Package Type: 16-SOIC (0.154", 3.90mm Width)
- Features: Over Voltage Protection; Lead-Free
- Pins: 16
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 079663-BQ2031SN-A5. Packaging: Tube/Rail. Fault Protection: Over Temperature, Over Voltage. Battery Chemistry: Lead Acid. Number of Cells: 1. Current - Charging: Constant, Pulsed. Programmable Features: Current, Timer, Voltage. Charge Current... [See More]
- Cell Type: Lead Acid
- Package Type: SOIC; 16-SOIC
- Features: Over Voltage Protection
- Cells: 1
from DigiKey
IC BATT CHG LEAD ACID 28PLCC [See More]
- Cell Type: Lead Acid
- Package Type: 28-LCC (J-Lead)
- Features: Lead-Free
- Pins: 28
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 011853-BQ2031SN-A5TR. Packaging: Reel - TR. Fault Protection: Over Temperature, Over Voltage. Battery Chemistry: Lead Acid. Number of Cells: 1. Current - Charging: Constant, Pulsed. Programmable Features: Current, Timer, Voltage. Charge... [See More]
- Cell Type: Lead Acid
- Package Type: SOIC; 16-SOIC
- Features: Over Voltage Protection
- Cells: 1
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 201279-BQ2031SN-A5TRG4. Packaging: Reel - TR. Fault Protection: Over Temperature, Over Voltage. Battery Chemistry: Lead Acid. Number of Cells: 1. Current - Charging: Constant, Pulsed. Programmable Features: Current, Timer, Voltage. Charge... [See More]
- Cell Type: Lead Acid
- Package Type: SOIC; 16-SOIC
- Features: Over Voltage Protection
- Cells: 1
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 1275847-UC2906DW. Packaging: Tube. Mounting Style: SMD. Battery Chemistry: Lead Acid. Programmable Features: Current. Categories: Integrated Circuits. Supplier Device Package: 16-SOIC. Temperature Range - Operating: -40 °C ~ 70 °C. [See More]
- Cell Type: Lead Acid
- Operating Temperature: -40 to 70
- Package Type: SOIC
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 035655-UC2906DWTR. Packaging: Reel - TR. Battery Chemistry: Lead Acid. Programmable Features: Current. Categories: Integrated Circuits. Status: Active. Temperature Range - Operating: -40 °C to 70 °C (TA). Case / Package: 16-SOIC. [See More]
- Cell Type: Lead Acid
- Supply Voltage: 40
- Package Type: SOIC; 16-SOIC
- Operating Temperature: -40 to 70
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 1115444-UC2906N. Packaging: Tube/Rail. Battery Chemistry: Lead Acid. Programmable Features: Current. Categories: Integrated Circuits. Status: Active. Temperature Range - Operating: -40 °C to 70 °C (TA). Case / Package: 16-PDIP. [See More]
- Cell Type: Lead Acid
- Supply Voltage: 40
- Package Type: DIP; PDIP; 16-PDIP
- Operating Temperature: -40 to 70
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 938024-UC2906Q. Operating Temperature Range: -40 °C ~ 70 °C (TA). Features: Charger IC Lead Acid 20-PLCC (9x9). Package: Tube. Package: 20-LCC (J-Lead). Mounting: Surface Mount. Part Status: Obsolete. Categories: Integrated Circuits... [See More]
- Cell Type: Lead Acid
- Operating Temperature: -40 to 70
- Package Type: PLCC; 20-PLCC (9x9)
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 901685-UC2909DWTR. Operating Temperature Range: -40 °C ~ 85 °C (TA). Features: Charger IC Lead Acid 20-SOIC. Package: Reel - TR. Package: 20-SOIC (0.295", 7.50mm Width). Mounting: Surface Mount. Part Status: Obsolete. Family Name:... [See More]
- Cell Type: Lead Acid
- Operating Temperature: -40 to 85
- Package Type: SOIC; 20-SOIC
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 1275851-UC2909N. Packaging: Tube. Operating Temperature Range: -40 °C ~ 85 °C (TA). Package: 20-DIP (0.300", 7.62mm). Part Status: Obsolete(EOL). Battery Chemistry: Lead Acid. Current - Charging: Constant - Programmable. Family Name:... [See More]
- Cell Type: Lead Acid
- Operating Temperature: -40 to 85
- Package Type: DIP
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 035736-UC3906DW. Packaging: Tube/Rail. Battery Chemistry: Lead Acid. Programmable Features: Current. Categories: Integrated Circuits. Status: Active. Temperature Range - Operating: 0 °C to 70 °C (TA). Case / Package: 16-SOIC. Maximum... [See More]
- Cell Type: Lead Acid
- Supply Voltage: 40
- Package Type: SOIC; 16-SOIC
- Operating Temperature: 0 to 70
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 1276045-UC3906DWTR. Packaging: Reel - TR. Operating Temperature Range: 0 °C ~ 70 °C (TA). Package: 16-SOIC (0.295", 7.50mm Width). Battery Chemistry: Lead Acid. Programmable Features: Current. Family Name: UC3906. Categories:... [See More]
- Cell Type: Lead Acid
- Operating Temperature: 0 to 70
- Package Type: SOIC
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 938037-UC3906DWTRG4. Operating Temperature Range: 0 °C ~ 70 °C (TA). Features: Charger IC Lead Acid 16-SOIC. Package: 16-SOIC (0.295", 7.50mm Width). Package: Reel - TR. Mounting: Surface Mount. Family Name: UC3906. Categories:... [See More]
- Cell Type: Lead Acid
- Operating Temperature: 0 to 70
- Package Type: SOIC; 16-SOIC
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 035737-UC3906N. Packaging: Tube/Rail. Battery Chemistry: Lead Acid. Programmable Features: Current. Family Name: UC3906. Categories: Integrated Circuits. Status: Active. Temperature Range - Operating: 0 °C to 70 °C (TA). Case /... [See More]
- Cell Type: Lead Acid
- Supply Voltage: 40
- Package Type: DIP; PDIP; 16-PDIP
- Operating Temperature: 0 to 70
from Win Source Electronics
Manufacturer: Texas Instruments. Win Source Part Number: 140631-UC3906Q. Packaging: Tube/Rail. Battery Chemistry: Lead Acid. Programmable Features: Current. Categories: Integrated Circuits. Status: Active. Temperature Range - Operating: 0 °C to 70 °C (TA). Case / Package: 20-PLCC (9x9). [See More]
- Cell Type: Lead Acid
- Supply Voltage: 40
- Package Type: PLCC; 20-PLCC (9x9)
- Operating Temperature: 0 to 70
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 1CEL 16DIP [See More]
- Cell Type: Lead Acid; Lead Acid
- Charge Current: 5
- Features: Over Voltage Protection
from Lingto Electronic Limited
IC BAT CHG LEAD ACID 1CEL 16SOIC [See More]
- Cell Type: Lead Acid; Lead Acid
- Charge Current: 5
- Features: Over Voltage Protection
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 16SOIC [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
SMBUS 1- TO 4-CELL NVDC BUCK-BOO [See More]
- Cell Type: Lead Acid; Lead Acid, Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH, SuperCap
- Supply Voltage: 24
- Features: Over Current Protection
- Charge Current: 16256
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 16DIP [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
IC BATT CHG PWR SUP SUPPORT CIRC [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 20PLCC [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 20SOIC [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 20DIP [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 20DIP [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
IC BATT CHG 0.1A 242KHZ BIPOLAR [See More]
- Cell Type: Lead Acid; Lead Acid
from Lingto Electronic Limited
IC BATT CHG LEAD ACID 28PLCC [See More]
- Cell Type: Lead Acid; Lead Acid