PMIC - Battery Chargers

Part Number	Description / PDF	Quantity
MAX14745IEWX+T Maxim Integrated	IC BATT CHG LI-ION 1CELL 36WLP	0
MAX1811ESA Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 8SOIC	522
BQ2031SN-A5TR Texas Instruments	IC BAT CHG LEAD ACID 1CEL 16SOIC	852
BQ24251RGER Texas Instruments	IC BATT CHG LI-ION 1CELL 24VQFN	0
LTC4062EDD#PBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 10DFN	307
BQ24780SRUYR Texas Instruments	IC BAT CHG MULTCHEM 1-4CL 28WQFN	0
LTC4012CUF-3#TRPBF Analog Devices, Inc.	IC BATT CHG MULTI-CHEM 20QFN	0
ISL95521AHRZ-T Intersil (Renesas Electronics America)	IC BATT CHG LI-ION 2-4CELL 32QFN	0
ISL6291-1CR Intersil (Renesas Electronics America)	IC BATT CHG LI-ION 1CELL 16QFN	3164
BQ24261MYFFT Texas Instruments	IC BATT CHG PWR SUP MGMT CIRC	1000
MAX20094ATID/VY+ Maxim Integrated	IC BATT CHG LI-ION 1CELL 28TQFN	120
BQ24270YFFT Texas Instruments	IC BATT CHG LI-ION 1CELL 49DSBGA	6190
LTC4000IUFD-1#TRPBF Analog Devices, Inc.	IC BATT CHG IRON PHOSPHATE 28QFN	0
MC34674AEPR2 Freescale Semiconductor, Inc. (NXP Semiconductors)	IC BATT CHG LI-ION 1CELL 8UDFN	1967
MAX8622ETB+ Analog Devices, Inc.	IC BATT CHG XENON FLASH	67328
LTC4001EUF-1#TRPBF Analog Devices, Inc.	IC BATT CHG LI-ION 1CELL 16QFN	0
LT1510IN#PBF Analog Devices, Inc.	IC BATT CHG MULTI-CHEM 16DIP	0
MC33342DR2G	IC BATT CHG MULTI-CHEM 8SOIC	0
BQ2057WTSTR Texas Instruments	IC BATT CHG LI-ION 2CELL 8TSSOP	4404
BQ24296RGER Texas Instruments	IC BATT CHG LI-ION 1CELL 24VQFN	78

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)