PMIC - Battery Chargers

Part Number	Description / PDF	Quantity
LTC4012CUF-2#PBF Analog Devices, Inc.	IC BAT CHG MULT-CHEM 1-4CL 20QFN	96
STBC08PMR STMicroelectronics	IC BATT CHG LI-ION 1CELL 6DFN	8126
ISL9237HRZ-T7A Intersil (Renesas Electronics America)	IC BATT CHG LI-ION 1-3CELL 32QFN	0
ISL78692-1CR3Z-T7A Intersil (Renesas Electronics America)	IC BATT CHG LI-ION 1CELL 10DFN	0
FAN54040UCX	IC BATT CHG LI-ION 1CELL 20WLCSP	24000
BQ24751ARHDR-BE	IC BATT CHG MULTI 2-4C 28VQFNEP	34
LTC4089EDJC#TRPBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 22DFN	1965
MAX8903JETI+ Maxim Integrated	IC BATT CHG LI-ION 1CELL 28TQFN	150
BQ24401DR Texas Instruments	IC BATT CHG MULTI-CHEM 8SOIC	100407
MAX20094ATIB/VY+ Maxim Integrated	IC BATT CHG LI-ION 1CELL 28TQFN	1205340
LTC4089EDJC-5#PBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 22DFN	547
MCP73213-A5JI/MF Roving Networks / Microchip Technology	IC BATT CHG LI-ION 2CELL 10DFN	360
BQ24140YFFT Texas Instruments	IC BATT CHG LI-ION 1CELL 30DSBGA	199
MAX8903AETI+ Maxim Integrated	IC BATT CHG LI-ION 1CELL 28TQFN	1203
BQ24202DGNR Texas Instruments	IC BATT CHG PWR SUP SUPPORT CIRC	103940
LTC4061EDD-4.4#PBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 10DFN	0
ISL9201IRZ Intersil (Renesas Electronics America)	IC BATT CHG LI-ION 1CELL 10DFN	497
LTC3110IUF#PBF Analog Devices, Inc.	IC BATT CHG SUPERCAP 24QFN	281
BQ2004SN Texas Instruments	IC BATT CONTRL MULTI-CHEM 16SOIC	59
BQ2954SN Texas Instruments	IC BATT FAST CHG LI-ION 16SOIC	302

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

Type	Functional Characteristics	Application Examples
Linear Battery Chargers	Simple topology, low noise, limited efficiency (typically <70%)	Wearable devices, low-power sensors
Switch-Mode Battery Chargers	High efficiency (>90%), supports fast charging protocols	Smartphones, laptops, drones
Multi-Protocol Chargers	Supports USB PD, QC, and proprietary fast charging standards	Universal adapters, power banks
Wireless Battery Chargers	Integrates magnetic induction control and foreign object detection	Smartphones, 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

Parameter	Typical Range	Importance
Charging Current	100mA-5A	Determines charge time and battery capacity
Voltage Accuracy	0.5%- 2%	Ensures battery longevity and safety
Conversion Efficiency	70%-95%	Impacts thermal performance and battery life
Input Voltage Range	3.7V-24V	Defines compatibility with power sources
Protection Features	OVP/OCP/OTP	Prevents 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

Manufacturer	Representative Product	Key Features
Texas Instruments	BQ25790	4.5A switch-mode charger with USB PD 3.0 support
Analog Devices	LTC4162	High-voltage battery charger with MPPT algorithm
STMicroelectronics	STBC08	Automotive-grade linear charger with ASIL-B safety rating
NXP Semiconductors	PF1550	PMIC 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)