PMIC - Battery Management

Image Part Number Description / PDF Quantity Rfq
S-8204BAQ-TCT1U

S-8204BAQ-TCT1U

ABLIC U.S.A. Inc.

IC BATT PROT LI-ION 3-4C 16TSSOP

0

S-8254AAJFT-TB-U

S-8254AAJFT-TB-U

ABLIC U.S.A. Inc.

IC BATT PROT LI-ION 3-4C 16TSSOP

0

DS2778G+T&R

DS2778G+T&R

Maxim Integrated

IC BATT MFUNC LI-ION 2CEL 14TDFN

0

S-8254ABCFT-TB-U

S-8254ABCFT-TB-U

ABLIC U.S.A. Inc.

IC BATT PROT LI-ION 3-4C 16TSSOP

0

LTC2949HLXE#3ZZPBF

LTC2949HLXE#3ZZPBF

Analog Devices, Inc.

IC GAS GAUGE MULTI-CHEM 48LQFP

0

MM3508C02NRH

MM3508C02NRH

Mitsumi Electric Company

IC, MULTI CELL, SECOND PROTECTIO

0

S-8215AAG-I8T1U

S-8215AAG-I8T1U

ABLIC U.S.A. Inc.

IC BATT PROT LI-ION 3-5CL SNT-8A

0

MAX16914AUB+

MAX16914AUB+

Maxim Integrated

IC BATT PROTECTION 10UMAX

462900

BQ294533DRVT

BQ294533DRVT

Texas Instruments

IC BATT PROT LI-ION 2-3CEL 6WSON

1230

MAX6429KTUR-T

MAX6429KTUR-T

Analog Devices, Inc.

IC BATT MON MULT-CHEM 1C SOT23-3

10000

MAX6432ORUS

MAX6432ORUS

Analog Devices, Inc.

IC BAT MON MULT-CHEM 2C SOT143-4

2335

MAX6776LTC+

MAX6776LTC+

Analog Devices, Inc.

IC BATT MON MULTI-CHEM 1CL 6UDFN

3166

FFG1040UC003X

FFG1040UC003X

Sanyo Semiconductor/ON Semiconductor

IC BATT MON LI-ION 1CELL 12WLCSP

2974

S-8200ABI-I6T1U

S-8200ABI-I6T1U

ABLIC U.S.A. Inc.

IC BATT PROT LI-ION 1CELL SNT-6A

0

LTC6803IG-3#TRPBF

LTC6803IG-3#TRPBF

Analog Devices, Inc.

IC BATT MON MULTI 1-12C 44SSOP

3614

AP9214L-AA-HSBR-7

AP9214L-AA-HSBR-7

Zetex Semiconductors (Diodes Inc.)

IC BATT PROT LI-ION 1CELL 6UDFN

0

BQ27621YZFT-G1A

BQ27621YZFT-G1A

Texas Instruments

IC BATT FUEL GAUGE LIION 9DSBGA

622

S-8252ACA-M6T1U

S-8252ACA-M6T1U

ABLIC U.S.A. Inc.

IC BATT PROT LI-ION 2CEL SOT23-6

0

AP9101CK-BZTRG1

AP9101CK-BZTRG1

Zetex Semiconductors (Diodes Inc.)

IC BATT PROT LI-ION 1CELL SOT25

0

BQ27410DRZT-G1

BQ27410DRZT-G1

Texas Instruments

IC BATT FUEL GAUGE LICOO2 12SON

962

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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