PMIC - Thermal Management

Image Part Number Description / PDF Quantity Rfq
MAX1669EEE+

MAX1669EEE+

Maxim Integrated

IC FAN CTRLR W/SENSOR 16-QSOP

2400

LM63DIMAX

LM63DIMAX

Texas Instruments

IC TEMP SENSOR DIG W/FAN 8-SOIC

0

ADT7485AARMZ-REEL

ADT7485AARMZ-REEL

Sanyo Semiconductor/ON Semiconductor

IC TEMP/VOLT DIG SENSOR 10-MSOP

0

TSE2002B3CNCG

TSE2002B3CNCG

Renesas Electronics America

IC TEMP SENS EEPROM TDFN-8

0

STTS2002B2DN3F

STTS2002B2DN3F

STMicroelectronics

IC MEMORY MOD TEMP SENSOR 8TDFN

0

SE98ATP,147

SE98ATP,147

NXP Semiconductors

IC TEMPERATURE SENSOR DDR 8HWSON

0

SE97PW,118

SE97PW,118

NXP Semiconductors

IC TEMP SENSOR DIMM 8-TSSOP

0

MCP98242T-BE/MC

MCP98242T-BE/MC

Roving Networks / Microchip Technology

IC MEMORY MOD TEMP SENSOR 8-DFN

0

TSE2002GB2A1NRG

TSE2002GB2A1NRG

Renesas Electronics America

IC TEMP SENS EEPROM DFN-8

0

W83783G T&R

W83783G T&R

Nuvoton Technology Corporation America

IC MONITOR H/W 24-SOIC

0

EMC6W201-AEZG-TR

EMC6W201-AEZG-TR

Roving Networks / Microchip Technology

IC LINEAR FAN CTRLR 36VQFN

0

ADT7463ARQZ-REEL7

ADT7463ARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THERMAL CTRLR 24-QSOP

0

ADM1021ARQ-REEL7

ADM1021ARQ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC SENSOR TEMP DUAL3/5.5V 16QSOP

0

MCP98242T-BE/MCBA2

MCP98242T-BE/MCBA2

Roving Networks / Microchip Technology

IC TEMP SENSOR 2WIRE 3V 8-DFN

0

ADT7476AARQZ-REEL7

ADT7476AARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THERMAL CTRLR 24-QSOP

0

ADM1033ARQZ-REEL7

ADM1033ARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC THERM/FAN SPEED CTRLR 16-QSOP

0

LM88CIMM-A

LM88CIMM-A

Texas Instruments

IC THRMOSTAT DUAL REMDIODE 8MSOP

0

SE98TK,118

SE98TK,118

NXP Semiconductors

IC TEMP SENSOR I2C 8HVSON

0

ADM1030ARQZ-REEL

ADM1030ARQZ-REEL

Sanyo Semiconductor/ON Semiconductor

IC SNSR TEMP/FAN PWM CTRL 16QSOP

0

MCP98242-BE/ST

MCP98242-BE/ST

Roving Networks / Microchip Technology

IC MEMORY MOD TEMP SENSOR 8TSSOP

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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