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PMIC - Battery Chargers

Image Part Number Description / PDF Quantity Rfq
PT8A2704WEX

PT8A2704WEX

Zetex Semiconductors (Diodes Inc.)

IC BAT CHG MULT-CHEM 1-8CL 8SOIC

0
AUR9801DGD

AUR9801DGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 10UDFN

0
AUR9811DGD

AUR9811DGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 10WDFN

0
PT8A2704WE

PT8A2704WE

Zetex Semiconductors (Diodes Inc.)

IC BAT CHG MULT-CHEM 1-8CL 8SOIC

0
AUR9807DSGD

AUR9807DSGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 20QFN

0
AUR9807DIGD

AUR9807DIGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 20QFN

0
AUR9807VFGD

AUR9807VFGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 20QFN

0
AUR9807VIGD

AUR9807VIGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 20QFN

0
AUR9807VSGD

AUR9807VSGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 20QFN

0
PT8A2704AWEX

PT8A2704AWEX

Zetex Semiconductors (Diodes Inc.)

IC BAT CNTRL MULTCHEM 1-8C 8SOIC

0
AUR9801CGD

AUR9801CGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 10WDFN

0
PT8A2704PE

PT8A2704PE

Zetex Semiconductors (Diodes Inc.)

IC BAT CNTRL MULTCHEM 1-8CL 8DIP

0
PT8A2703WEX

PT8A2703WEX

Zetex Semiconductors (Diodes Inc.)

IC BAT CNTRL MULTCHEM 2CL 16SOIC

0
PT8A2803ZEE

PT8A2803ZEE

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 8TDFN

0
PT8A2704PEX

PT8A2704PEX

Zetex Semiconductors (Diodes Inc.)

IC BAT CHG MULT-CHEM 1-8CEL 8DIP

0
PT8A2704AWE

PT8A2704AWE

Zetex Semiconductors (Diodes Inc.)

IC BAT CHG MULT-CHEM 1-8CL 8SOIC

0
APM8600FB-7

APM8600FB-7

Zetex Semiconductors (Diodes Inc.)

IC BAT CHG LI-ION 1CL DFN3030-14

0
APM8601FB-7

APM8601FB-7

Zetex Semiconductors (Diodes Inc.)

IC BAT CHG LI-ION 1CL DFN3030-14

0
API9221FCG-13

API9221FCG-13

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 12UDFN

0
AUR9811DUGD

AUR9811DUGD

Zetex Semiconductors (Diodes Inc.)

IC BATT CHG LI-ION 1CELL 10WDFN

0

PMIC - Battery Chargers

1. Overview

Power Management Integrated Circuits (PMIC) with Battery Charger functionality are specialized semiconductor devices that manage power distribution and battery charging processes in electronic systems. These ICs integrate charging algorithms, safety protections, and power path management to optimize energy efficiency and battery lifespan. Their importance in modern technology lies in enabling compact, high-efficiency power solutions for portable electronics, electric vehicles, and IoT devices.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Linear Battery ChargersSimple topology, low noise, limited efficiency (typically <70%)Wearable devices, low-power sensors
Switch-Mode Battery ChargersHigh efficiency (>90%), supports fast charging protocolsSmartphones, laptops, drones
Multi-Protocol ChargersSupports USB PD, QC, and proprietary fast charging standardsUniversal adapters, power banks
Wireless Battery ChargersIntegrates magnetic induction control and foreign object detectionSmartphones, electric toothbrushes

3. Structure and Components

Typical physical structure includes:

  • QFN/DFN package (3x3mm to 5x5mm size range)
  • Internal modules:
    • Voltage/current regulation circuits
    • Charging algorithm controller (CC-CV, pulsed charging)
    • Thermal management unit
    • Power MOSFETs (for switch-mode types)
    • Communication interface (I2C/SPI for parameter configuration)

4. Key Technical Specifications

ParameterTypical RangeImportance
Charging Current100mA-5ADetermines charge time and battery capacity
Voltage Accuracy 0.5%- 2%Ensures battery longevity and safety
Conversion Efficiency70%-95%Impacts thermal performance and battery life
Input Voltage Range3.7V-24VDefines compatibility with power sources
Protection FeaturesOVP/OCP/OTPPrevents system failures and safety hazards

5. Application Fields

  • Consumer Electronics: smartphones, tablets, TWS earbuds
  • Industrial: handheld terminals, robotics, medical devices
  • Automotive: infotainment systems, battery management for EVs
  • IoT: smart meters, environmental sensors, security systems

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Texas InstrumentsBQ257904.5A switch-mode charger with USB PD 3.0 support
Analog DevicesLTC4162High-voltage battery charger with MPPT algorithm
STMicroelectronicsSTBC08Automotive-grade linear charger with ASIL-B safety rating
NXP SemiconductorsPF1550PMIC with integrated wireless charging controller

7. Selection Guidelines

  • Match charging current/voltage requirements with battery specifications
  • Consider input power source compatibility (USB, AC adapter, solar)
  • Evaluate required protection features (temperature monitoring, fault reporting)
  • Check communication interface requirements (I2C register configuration needed?)
  • Thermal considerations: select package with adequate heat dissipation
  • Example: For a 10W IoT device, select a 1A linear charger with 1% voltage accuracy

8. Industry Development Trends

Key trends include:

  • Integration of AI-based charging algorithms for battery aging compensation
  • Adoption of GaN/SiC transistors for >95% efficiency in fast charging applications
  • Development of bidirectional chargers for vehicle-to-grid (V2G) applications
  • Standardization of USB-C Power Delivery as universal charging interface
  • Miniaturization through 3D packaging technology (stacked die integration)
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