PMIC - Battery Chargers

Part Number	Description / PDF	Quantity
BQ25120YFPR Texas Instruments	IC BATT CHG LI-ION 1CELL 25DSBGA	2134
LTC4012CUF-1#TRPBF Analog Devices, Inc.	IC BAT CHG MULT-CHEM 1-4CL 20QFN	0
BQ24721CRHBTG4 Texas Instruments	IC BAT CHG MULTCHEM 3-4CL 32VQFN	0
BQ25071DQCR Texas Instruments	IC BATT CHG IRON PHOS 1C 10WSON	0
LTC4101EG#PBF	IC BATT CHG SMART 1CEL 24SSOP	27
MCP73213-B6AI/MF Roving Networks / Microchip Technology	IC BATT CHG LI-ION 2CELL 10DFN	114
LTC1729CS8-8.4#TRPBF Analog Devices, Inc.	IC BATT CHG LI-ION 2CELL 8SOIC	0
MCP73831T-2DCI/MC Roving Networks / Microchip Technology	IC BATT CONTRL LI-ION 1CELL 8DFN	3323
LTC4126EV#TRMPBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 12LQFN	3500
BQ25302RTER Texas Instruments	IC BATT CHG LI-ION 1CELL 16WQFN	1101
BQ24150YFFR Texas Instruments	IC BATT CHG LI-ION 1CELL 20DSBGA	68647
FAN5404UCX	IC BATT CHG LI-ION 1CELL 20WLCSP	56451
BQ25101HYFPT Texas Instruments	IC BATT CHG LI-ION 1CELL 6DSBGA	290
DS2715Z+ Maxim Integrated	IC BATT CHG NIMH 1-10CELL 16SOIC	1671
LTC4053EDD-4.2#PBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 10DFN	237
MP26121DQ-LF-Z MPS (Monolithic Power Systems)	IC BATT CHG LI-ION 1CELL 10QFN	4835
MCP73834T-CNI/UN Roving Networks / Microchip Technology	IC BATT CNTRL LI-ION 1CEL 10MSOP	0
LT3651IUHE-4.1#PBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 36QFN	122
BQ24150YFFT Texas Instruments	IC BATT CHG PWR SUP MGMT CIRC	1466
ADP2291ACPZ-R7 Analog Devices, Inc.	COMPACT, 1.5 A LINEARCHARGER FOR	21743

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)