PMIC - Battery Management

Image Part Number Description / PDF Quantity Rfq
LT8584HFE#PBF

LT8584HFE#PBF

Analog Devices, Inc.

IC BATT BALANCER 1-12CEL 16TSSOP

364

MAX6429MRUR

MAX6429MRUR

Analog Devices, Inc.

IC BATT MON MULT-CHEM 1C SOT23-3

2460

MAX6789TB+

MAX6789TB+

Analog Devices, Inc.

IC BATT MON MULTI-CHEM 2C 10TDFN

31255

LTC1559CS-3.3#PBF

LTC1559CS-3.3#PBF

Analog Devices, Inc.

IC BATT PWR MGT NICAD 1C 16SOIC

0

MAX6780LTB+T

MAX6780LTB+T

Analog Devices, Inc.

IC BATT MON MULTI-CHEM 2CL 6UDFN

12049

MAX6433UK-T

MAX6433UK-T

Analog Devices, Inc.

IC BATT MON MULT-CHEM 1C SOT23-5

0

DS1259S+

DS1259S+

Analog Devices, Inc.

IC BATT PWR MGMT 16SOIC

12444

LTC4090EDJC#PBF

LTC4090EDJC#PBF

Analog Devices, Inc.

IC BATT PWR MGMT LI-ION 1C 22DFN

2096

MAX6849KASD3

MAX6849KASD3

Analog Devices, Inc.

IC BATT MON MULT-CHEM 2C SOT23-8

175

LTC6811HG-2#3ZZTRPBF

LTC6811HG-2#3ZZTRPBF

Analog Devices, Inc.

IC BATT MON MULTI 1-12C 48SSOP

0

LT1579IGN-5#TRPBF

LT1579IGN-5#TRPBF

Analog Devices, Inc.

IC BATT PWR MGMT MULTI 1C 16SSOP

0

LTC4162IUFD-SST#PBF

LTC4162IUFD-SST#PBF

Analog Devices, Inc.

IC BATT MON LEAD ACID 4CEL 28QFN

0

LTC4078EDD#TRPBF

LTC4078EDD#TRPBF

Analog Devices, Inc.

IC BATT PWR MGMT LI-ION 1C 12DFN

0

MAX6780LTA+T

MAX6780LTA+T

Analog Devices, Inc.

IC BATT MON MULTI-CHEM 2CL 6UDFN

5000

LTC6806ILW#3ZZTRPBF

LTC6806ILW#3ZZTRPBF

Analog Devices, Inc.

IC BATT MON MULT-CHEM 36C 64LQFP

0

MAX6427DHUR+T

MAX6427DHUR+T

Analog Devices, Inc.

IC BATT MON MULT-CHEM 1C SOT23-3

7500

MAX6439UTEISD3

MAX6439UTEISD3

Analog Devices, Inc.

IC BATT MON MULT-CHEM 1C SOT23-6

386

MAX1772EEI-TG074

MAX1772EEI-TG074

Analog Devices, Inc.

IC BATT CHARGER BLDG BLOCK

576

ADBMS1818ASWZ-R7

ADBMS1818ASWZ-R7

Analog Devices, Inc.

18-CELL BATTERY MONITOR WITH DAI

0

ADP5350ACPZ-1-R7

ADP5350ACPZ-1-R7

Analog Devices, Inc.

IC BAT PWR MGT LI-ION 1C 32LFCSP

1080

PMIC - Battery Management

1. Overview

Power Management Integrated Circuits (PMICs) with Battery Management functionality are specialized semiconductor devices designed to monitor, control, and optimize battery operations in electronic systems. These ICs handle critical tasks including charging control, discharge regulation, capacity monitoring, and safety protection. Their importance has grown exponentially with the proliferation of portable electronics, electric vehicles, and energy-harvesting systems, where battery efficiency and safety are paramount.

2. Major Types & Functional Classification

TypeFunctional FeaturesApplication Examples
Battery Charge Management ICsSupport Li-ion/Polymer, NiMH, and lead-acid chemistries; implement CC/CV charging, thermal regulationSmartphones, power banks
Fuel Gauge ICsImpedance tracking, voltage-based SOC estimation, data loggingLaptops, medical devices
Battery Protection ICsOvervoltage, overcurrent, short-circuit, and temperature protectionE-bikes, battery packs
Power Path Management ICsDynamic power distribution between charger and system loadTablets, drones

3. Structure & Composition

A typical PMIC Battery Management IC integrates:

  • Analog Front-End (AFE) with precision ADC/DAC
  • Digital control logic (state machines or embedded microcontrollers)
  • Communication interfaces (I2C, SMBus, SPI)
  • High-side/low-side MOSFET drivers
  • Temperature sensing elements
  • Non-volatile memory for calibration data

Advanced packages (QFN, BGA) enable high integration while maintaining thermal performance.

4. Key Technical Specifications

ParameterTypical RangeImportance
Charging Current Range100mA - 5ADetermines charge speed and battery size compatibility
SOC Estimation Accuracy 1-5%Impacts runtime prediction reliability
Quiescent Current1-20 ACrucial for standby power efficiency
Communication Speed400kHz - 3.4MHz (I2C)Affects system responsiveness
Operating Temperature-40 C to +125 CDetermines environmental robustness

5. Application Fields

  • Consumer Electronics: Smartphones (Apple iPhone PMICs), Smartwatches (Fitbit Charge series)
  • Medical Devices: Portable ultrasound machines (Philips Lumify), infusion pumps
  • Automotive: EV battery packs (Tesla Model 3 BMS), start-stop systems
  • Industrial: Robotics (Boston Dynamics Atlas), energy storage systems

6. Leading Manufacturers & Products

ManufacturerRepresentative ProductKey Features
Texas InstrumentsBQ25790Single-chip solution with USB PD 3.0, 3.5A charging
Analog DevicesMAX17055ModelGauge m3 algorithm, 60s runtime prediction
STMicroelectronicsSTM32F051xCortex-M0 core with integrated Li-ion charger
NXP SemiconductorsPF1550PMIC for i.MX8 processors with dynamic voltage scaling

7. Selection Guidelines

Key considerations:

  • Battery chemistry compatibility (Li-ion requires CC/CV profile)
  • System voltage requirements (USB PD needs 5-20V support)
  • Form factor constraints (Wearable devices demand WCSP packages)
  • Communication protocol compatibility (I2C vs. SMBus vs. HDQ)
  • Safety certifications (UL 1642 for lithium batteries)
  • Software ecosystem (development tools and reference designs)

Example: For a 2-cell Li-ion notebook battery, select a multi-cell fuel gauge (e.g., BQ30z55) with SHA-256 authentication and PC companion software support.

8. Industry Trends

  • Integration of wireless charging (Qi standard) with battery management
  • Adoption of AI algorithms for adaptive charging profiles
  • Development of ultra-low-power PMICs for IoT edge devices
  • Increase in ASIL-D rated automotive-grade PMICs for EVs
  • Transition to 3D packaging for higher functional density
  • Growing adoption of battery health analysis (BHA) algorithms
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