PMIC - Thermal Management

Image Part Number Description / PDF Quantity Rfq
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

ADM1030ARQZ-REEL

ADM1030ARQZ-REEL

Sanyo Semiconductor/ON Semiconductor

IC SNSR TEMP/FAN PWM CTRL 16QSOP

0

ADM1031ARQZ

ADM1031ARQZ

Sanyo Semiconductor/ON Semiconductor

IC SENSOR 2-TEMP/FAN CTRL 16QSOP

0

ADM1021AARQ-REEL

ADM1021AARQ-REEL

Sanyo Semiconductor/ON Semiconductor

IC SENSOR TEMP DUAL3/5.5V 16QSOP

0

ADM1034ARQZ

ADM1034ARQZ

Sanyo Semiconductor/ON Semiconductor

IC THERM/FAN SPEED CTRLR 16-QSOP

0

ADM1033ARQ

ADM1033ARQ

Sanyo Semiconductor/ON Semiconductor

IC THERM/FAN SPEED CTRLR 16-QSOP

0

ADM1023ARQZ-R7

ADM1023ARQZ-R7

Sanyo Semiconductor/ON Semiconductor

IC TEMP SENSOR DUAL PREC 16QSOP

0

ADM1031ARQZ-R7

ADM1031ARQZ-R7

Sanyo Semiconductor/ON Semiconductor

IC SENSOR 2TEMP/FAN CTRL 16QSOP

0

ADM1021ARQZ

ADM1021ARQZ

Sanyo Semiconductor/ON Semiconductor

IC SENSOR TEMP DUAL3/5.5V 16QSOP

0

ADT7467ARQ-REEL

ADT7467ARQ-REEL

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THERMAL CTRLR 16-QSOP

0

ADT7466ARQZ-RL7

ADT7466ARQZ-RL7

Sanyo Semiconductor/ON Semiconductor

IC CTLR REMOTE THERMAL 16-QSOP

0

ADM1034ARQZ-R7

ADM1034ARQZ-R7

Sanyo Semiconductor/ON Semiconductor

IC THERM/FAN SPEED CTLR 16-QSOP

0

ADM1034ARQZ-REEL7

ADM1034ARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC THERM/FAN SPEED CTRLR 16-QSOP

0

ADT7475ARQZ-REEL7

ADT7475ARQZ-REEL7

Sanyo Semiconductor/ON Semiconductor

IC REMOTE THERMAL CTRLR 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)

RFQ BOM Call Skype Email
Top