PMIC - Battery Management

Image Part Number Description / PDF Quantity Rfq
MAX6429MRUR-T

MAX6429MRUR-T

Analog Devices, Inc.

IC BATT MON MULT-CHEM 1C SOT23-3

12500

LTC6801HG#3ZZPBF

LTC6801HG#3ZZPBF

Analog Devices, Inc.

IC BATT MON LI-ION 1-12CL 36SSOP

0

LTC4067EDE#PBF

LTC4067EDE#PBF

Analog Devices, Inc.

IC BATT MFUNC LI-ION 1CELL 12DFN

1559

LTC2944CDD#TRPBF

LTC2944CDD#TRPBF

Analog Devices, Inc.

IC BATT MONITOR MULTI-CHEM 8DFN

0

LTC4162IUFD-FADM#TRPBF

LTC4162IUFD-FADM#TRPBF

Analog Devices, Inc.

IC BAT LIFEPO4/LI-ION 1-9C 28QFN

0

LTC6803HG-1#TRPBF

LTC6803HG-1#TRPBF

Analog Devices, Inc.

IC BATT MON MULTI 1-12C 44SSOP

0

LTC1559CGN-5#TRPBF

LTC1559CGN-5#TRPBF

Analog Devices, Inc.

IC BATT PWR MGT NICAD 1C 16SSOP

0

LT1579CS-3

LT1579CS-3

Analog Devices, Inc.

IC BATT PWR MGMT MULTI 1C 16SOIC

21

MAX1535CETJ

MAX1535CETJ

Analog Devices, Inc.

IC BATT CHG LEV 2 SMBUS

80981

LTC4162IUFD-FAD#PBF

LTC4162IUFD-FAD#PBF

Analog Devices, Inc.

IC BAT LIFEPO4/LI-ION 1-9C 28QFN

174

LTC4162EUFD-FADM#TRPBF

LTC4162EUFD-FADM#TRPBF

Analog Devices, Inc.

IC BAT LIFEPO4/LI-ION 1-9C 28QFN

0

MAX6435UK+

MAX6435UK+

Analog Devices, Inc.

IC BATT MON MULT-CHEM 1C SOT23-5

70

LTC4066EPF#TRPBF

LTC4066EPF#TRPBF

Analog Devices, Inc.

IC BATT MFUNC LI-ION 1CL 24UTQFN

0

LTC4162IUFD-FSTM#TRPBF

LTC4162IUFD-FSTM#TRPBF

Analog Devices, Inc.

IC BAT LIFEPO4/LI-ION 1-9C 28QFN

0

LTC6810IG-1#3ZZPBF

LTC6810IG-1#3ZZPBF

Analog Devices, Inc.

IC BAT MON MULT-CHEM 1-6C 44SSOP

45

LT1579CS-5#PBF

LT1579CS-5#PBF

Analog Devices, Inc.

IC BATT PWR MGMT MULTI 1C 16SOIC

84

MAX17022ETA+T

MAX17022ETA+T

Analog Devices, Inc.

IC BATT STEP DOWN CTRLLR 8TDFN

2500

LTC2942CDCB-1#TRPBF

LTC2942CDCB-1#TRPBF

Analog Devices, Inc.

IC BATT MON LI-ION 1CELL 6DFN

0

LTC1558CS8-5#TRPBF

LTC1558CS8-5#TRPBF

Analog Devices, Inc.

IC BAT PWR MGMT NIC CAD 1C 8SOIC

0

DS2760BE-025

DS2760BE-025

Analog Devices, Inc.

IC BATT MONITOR LI-ION 16TSSOP

6298

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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