PMIC - Thermal Management

Image Part Number Description / PDF Quantity Rfq
ADT7466ARQZ-REEL7

ADT7466ARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THERMAL CTRLR 16QSOP

0

W83L786NG

W83L786NG

Nuvoton Technology Corporation America

IC H/W MONITOR 20-SSOP

0

MCP98242T-BE/MUY

MCP98242T-BE/MUY

Roving Networks / Microchip Technology

IC TEMP SENSOR 2WIRE 8-UDFN

0

STTS424BDN3F

STTS424BDN3F

STMicroelectronics

IC MEMORY MOD TEMP SENSOR 8-TDFN

0

ADM1030ARQZ-RL7

ADM1030ARQZ-RL7

Sanyo Semiconductor/ON Semiconductor

IC SNSR TEMP/FAN PWM CTRL 16QSOP

0

LM63CIMAX

LM63CIMAX

Texas Instruments

IC TEMP SENSOR REMOTE 8-SOIC

0

ADM1021AARQZ-REEL

ADM1021AARQZ-REEL

Sanyo Semiconductor/ON Semiconductor

IC SENSOR TEMP DUAL3/5.5V 16QSOP

0

NE1619DS,118

NE1619DS,118

NXP Semiconductors

IC TEMP MONITOR 16SSOP

0

MCP98242T-BE/MNYBA2

MCP98242T-BE/MNYBA2

Roving Networks / Microchip Technology

IC TEMP SENSOR 2WIRE 3V 8-TDFN

0

LM96194CISQX

LM96194CISQX

Texas Instruments

IC TRUTHERM HDWR MONITOR 48WQFN

0

ADM1034ARQ-REEL

ADM1034ARQ-REEL

Sanyo Semiconductor/ON Semiconductor

IC THERM/FAN SPEED CTRLR 16-QSOP

0

ADT7490ARQZ-REEL7

ADT7490ARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC THERM MON FAN CTRLR 24-QSOP

0

LTC2986HLX

LTC2986HLX

Analog Devices, Inc.

IC PWR SUPPLY MGR

0

MAX1669EEE+T

MAX1669EEE+T

Maxim Integrated

FAN CONTROLLER AND REMOTE TEMPER

0

LTC2986ILX-1

LTC2986ILX-1

Analog Devices, Inc.

IC PWR SUPPLY MGR

0

ADT7476AARQZ-RL7

ADT7476AARQZ-RL7

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THERMAL CTLR 24-QSOP

0

ADT7473ARQZ-1

ADT7473ARQZ-1

Sanyo Semiconductor/ON Semiconductor

IC THERM MON FAN CTRLR 16-QSOP

0

ADM1031ARQZ-REEL

ADM1031ARQZ-REEL

Sanyo Semiconductor/ON Semiconductor

IC SENSOR 2TEMP/FAN CTRL 16QSOP

0

MAX6645ABFAUB+T

MAX6645ABFAUB+T

Maxim Integrated

IC CNTRLR FAN SPEED 10-UMAX

0

ADM1026JST-REEL7

ADM1026JST-REEL7

Sanyo Semiconductor/ON Semiconductor

IC CNTRL SYS REF/EEPROM 48LQFP

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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