PMIC - Battery Management

Image Part Number Description / PDF Quantity Rfq
DS2746G-C02+TR

DS2746G-C02+TR

Analog Devices, Inc.

IC BATT MONITOR 2 WIRE LO COST

445000

MAX4920BETD+

MAX4920BETD+

Analog Devices, Inc.

IC BATT POWER-UP LOGIC

8635

MAX6849KASD3-T

MAX6849KASD3-T

Analog Devices, Inc.

IC BATT MON MULT-CHEM 2C SOT23-8

5000

AD8456ASTZ-RL

AD8456ASTZ-RL

Analog Devices, Inc.

IC BATT FORMATION AND TEST ASSP

0

MAX17050X-C01+T10

MAX17050X-C01+T10

Analog Devices, Inc.

IC BATT 1CELL FUEL GAUGE W/MODEL

18050

MAX6848KARD7-T

MAX6848KARD7-T

Analog Devices, Inc.

IC BATT MON MULT-CHEM 2C SOT23-8

5000

MAX716CAI

MAX716CAI

Analog Devices, Inc.

IC BATT PWR MGMT MAX716

0

MAX8617ETL+

MAX8617ETL+

Analog Devices, Inc.

IC BATT PWR MGMT 6 CHANNEL

3828

MAX846AEEE-TG074

MAX846AEEE-TG074

Analog Devices, Inc.

IC BATT CHARGER SYSTEM

2000

MAX8629CETI+

MAX8629CETI+

Analog Devices, Inc.

IC BATT PWR MGMT FOR CDMA CEL

55579

DS2760AE 025

DS2760AE 025

Analog Devices, Inc.

IC BATT MONITOR PRECISION LI+

2490

LTC2943IDD

LTC2943IDD

Analog Devices, Inc.

IC BATT MONITOR MULTI-CHEM 8DFN

0

LTC6803HG-4#3ZZTRPBF

LTC6803HG-4#3ZZTRPBF

Analog Devices, Inc.

IC BATT MON MULTI 1-12C 44SSOP

0

LTC3305EFE

LTC3305EFE

Analog Devices, Inc.

IC BATT LEAD ACID 1-4C 38TSSOP

0

LTC4099EPDC#TRPBF

LTC4099EPDC#TRPBF

Analog Devices, Inc.

IC BATT MFUNC LI-ION 20UTQFN

0

LTC3300HLXE-2

LTC3300HLXE-2

Analog Devices, Inc.

IC BATT BAL MULTI 1-12C 48ELQFP

0

LTC3300ILXE-2

LTC3300ILXE-2

Analog Devices, Inc.

IC BATT BAL MULTI 1-12C 48ELQFP

0

LTC4160EPDC-1#TRPBF

LTC4160EPDC-1#TRPBF

Analog Devices, Inc.

IC BATT MFUNC LI-ION 20UTQFN

0

LTC3300ILXE-1

LTC3300ILXE-1

Analog Devices, Inc.

IC BATT BAL MULTI 1-12C 48ELQFP

0

LTC2943CDD-1

LTC2943CDD-1

Analog Devices, Inc.

IC BATT MONITOR MULTI-CHEM 8DFN

0

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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