PMIC - Thermal Management

Image Part Number Description / PDF Quantity Rfq
NCT7717U TR

NCT7717U TR

Nuvoton Technology Corporation America

IC SMBUS TEMP SENSOR SOT23-5

0

W83793G

W83793G

Nuvoton Technology Corporation America

IC H/W MONITOR 56-SSOP

0

EMC2106-DZK-TR

EMC2106-DZK-TR

Roving Networks / Microchip Technology

IC RPM FAN CTRLR 28VQFN

0

W83795G

W83795G

Nuvoton Technology Corporation America

IC H/W MONITOR 64LQFP

0

EMC1702-1-KP-TR

EMC1702-1-KP-TR

Roving Networks / Microchip Technology

IC TEMP MONITOR I2C/SMBUS 12QFN

4880

NCT7511Y TR

NCT7511Y TR

Nuvoton Technology Corporation America

IC H/W MONITOR 16QFN

0

EMC2103-1-KP-TR

EMC2103-1-KP-TR

Roving Networks / Microchip Technology

IC RPM FAN CTRLR 12QFN

0

EMC2103-4-AP-TR

EMC2103-4-AP-TR

Roving Networks / Microchip Technology

SINGLE RPM FAN CONTROLLER

4967

78170P

78170P

T VER OF THE ADT7476

33950

MAX6604AAHA+T

MAX6604AAHA+T

Maxim Integrated

PRECISION TEMPERATURE MONITOR FO

0

W83793AG

W83793AG

Nuvoton Technology Corporation America

IC H/W MONITOR 56SSOP

0

EMC1701-1-KP-TR

EMC1701-1-KP-TR

Roving Networks / Microchip Technology

IC TEMP MONITOR I2C/SMBUS 12QFN

0

ADT7488AARMZ-REEL

ADT7488AARMZ-REEL

Sanyo Semiconductor/ON Semiconductor

IC TEMP SENSOR SST DGTL 10-MSOP

0

ADT7462ACPZ-R7

ADT7462ACPZ-R7

Sanyo Semiconductor/ON Semiconductor

IC TEMP/VOLT MONITOR 32-LFCSP

0

TSE2002GB2A1NRG8

TSE2002GB2A1NRG8

Renesas Electronics America

IC TEMP SENS EEPROM DFN-8

0

ADT7460ARQZ

ADT7460ARQZ

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THRML/FAN CTRLR 16QSOP

0

MCP98242T-BE/MNY

MCP98242T-BE/MNY

Roving Networks / Microchip Technology

IC MEMORY MOD TEMP SENSOR 8-DFN

0

ADT7467ARQZ-REEL7

ADT7467ARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THERMAL CTRLR 16QSOP

0

NE1619DS,112

NE1619DS,112

NXP Semiconductors

IC TEMP MONITOR 16SSOP

0

ADM1021AARQZ-REEL7

ADM1021AARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC SENSOR TEMP DUAL3/5.5V 16QSOP

0

PMIC - Thermal Management

1. Overview

Power Management ICs (PMICs) with Thermal Management are integrated circuits responsible for regulating power distribution and monitoring thermal conditions in electronic systems. These devices prevent overheating through active temperature sensing, dynamic power adjustment, and thermal protection mechanisms. Their importance grows with increasing power density in modern electronics like smartphones, servers, and automotive systems, ensuring reliability and longevity.

2. Major Types & Functional Classification

TypeFunctional CharacteristicsApplication Examples
Temperature Monitoring PMICContinuous temperature sensing with alert thresholdsSmartphones, laptops
Thermal Protection PMICAutomatic shutdown during critical temperature eventsIndustrial motors, battery systems
Dynamic Thermal Regulation PMICAdjusts power delivery based on real-time thermal feedbackHigh-performance computing (HPC), 5G base stations
Multi-Zone Thermal Control PMICIndependent monitoring of multiple thermal zonesAutomotive ECUs, data center servers

3. Structure & Technical Composition

A typical PMIC thermal management system consists of: - **Temperature Sensors**: Built-in thermistors or diodes for precise thermal detection - **Analog-to-Digital Converters (ADC)**: Convert analog temperature signals to digital values - **Control Logic**: Implements thermal algorithms (e.g., PID controllers) - **Power Switching Elements**: MOSFETs for load control during thermal events - **Communication Interfaces**: I2C/SPI for system integration - **Protection Circuits**: Over-temperature shutdown (OTP) and hysteresis mechanisms

4. Key Technical Specifications

ParameterDescriptionImportance
Temperature Sensing Accuracy 1 C to 3 C tolerance rangeDetermines protection reliability
Thermal Protection ThresholdConfigurable via registers (e.g., 80 C-150 C)Prevents silicon degradation
Response Time10 s-1ms for critical shutdownMinimizes thermal damage risk
Operating Temperature Range-40 C to +125 C standardEnsures environmental stability
Power Consumption10 A-100mA active modeImpacts battery life in portable devices
Package TypeQFN, BGA, TSSOPAffects thermal dissipation capability

5. Application Fields

  • Consumer Electronics: Smartphones (thermal throttling), tablets, VR headsets
  • Industrial Equipment: PLCs, motor drives, factory automation systems
  • Automotive: Battery Management Systems (BMS), ADAS processors
  • Telecommunications: 5G base stations, optical transceivers
  • Computing: Laptops, servers, AI accelerators

6. Leading Manufacturers & Representative Products

ManufacturerProduct SeriesKey Features
Texas InstrumentsTPS65000 SeriesMulti-channel thermal regulation with 1 C accuracy
STMicroelectronicsSTMPS SeriesIntegrated ADC and I2C interface for thermal monitoring
NXP SemiconductorsPF5000 SeriesDigital temperature sensors with programmable thresholds
Infineon TechnologiesOPTIREG SeriesAutomotive-grade thermal protection up to 150 C
Analog DevicesADM1031 Hot Swap ControllerDual-zone temperature monitoring with fan control

7. Selection Guidelines

Key considerations when selecting PMIC thermal management solutions: - **Operating Environment**: Industrial vs. consumer temperature requirements - **Thermal Response Speed**: Critical for high-power systems (e.g., GPUs) - **Integration Level**: Combined voltage regulation + thermal management vs. discrete solutions - **Package Thermal Resistance**: Lower R JA improves heat dissipation - **System Compatibility**: Communication interface (I2C vs. PMBus) and voltage range - **Certifications**: Automotive (AEC-Q), Industrial (IEC 60750) standards compliance

8. Industry Trends

Future developments in PMIC thermal management include: - **Advanced Process Nodes**: 28nm/40nm technologies for lower quiescent current - **AI-Driven Thermal Prediction**: Machine learning algorithms for proactive cooling - **GaN/SiC Integration**: Wide-bandgap semiconductor compatibility for high-temperature operation - **Ultra-Small Packaging**: 0.4mm pitch WLCSP for wearable devices - **Standardization Efforts**: Emerging PMIC thermal interface standards (e.g., JEDEC JESD51)

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