PMIC - Supervisors

Image Part Number Description / PDF Quantity Rfq
BU4922G-TR

BU4922G-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5SSOP

4751

BU4815G-TR

BU4815G-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5SSOP

2990

BU45K232G-TL

BU45K232G-TL

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 3SSOP

2865

BD4853FVE-TR

BD4853FVE-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5VSOF

0

BD4839G-TR

BD4839G-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5SSOP

754

BU4241FVE-TR

BU4241FVE-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5VSOF

0

BU45L452G-TL

BU45L452G-TL

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 3SSOP

2990

BU4321F-TR

BU4321F-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 4SOP

0

BU4930F-TR

BU4930F-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 4SOP

3000

BD49L30G-TL

BD49L30G-TL

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 3SSOP

2955

BU4330F-TR

BU4330F-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 4SOP

1698

BU4315FVE-TR

BU4315FVE-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5VSOF

3000

BU4226G-TR

BU4226G-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5SSOP

0

BU4313F-TR

BU4313F-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 4SOP

0

BU4942G-TR

BU4942G-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5SSOP

0

BU4810F-TR

BU4810F-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 4SOP

776

BU4219G-TR

BU4219G-TR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5SSOP

0

BU45K472G-TL

BU45K472G-TL

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 3SSOP

2965

BU45K262G-TL

BU45K262G-TL

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 3SSOP

2925

BD5233G-DTR

BD5233G-DTR

ROHM Semiconductor

IC SUPERVISOR 1 CHANNEL 5SSOP

0

PMIC - Supervisors

1. Overview

Power Management IC Supervisors (PMIC-Supervisors) are semiconductor devices that monitor and control power systems in electronic equipment. They provide critical functions including voltage monitoring, current limiting, thermal protection, and system reset control. These ICs ensure reliable operation by preventing damage from power anomalies, making them essential in modern electronics such as smartphones, automotive systems, and industrial equipment.

2. Main Types & Functional Classification

TypeFunctional FeaturesApplication Example
Voltage MonitorsTrack supply voltages and trigger resets during under/over-voltage conditionsServer power supplies
Reset ControllersGenerate system resets during power instabilityEmbedded systems
SequencersManage power-up/down order for multiple railsFPGA power management
Watchdog TimersMonitor processor activity and trigger resets on software faultsIndustrial controllers
Thermal SupervisorsShutdown systems during overheating conditionsPower amplifiers

3. Structure & Composition

PMIC-Supervisors typically feature: - Voltage reference circuits - Analog comparators - Digital control logic - Temperature sensing elements - Multiple input/output channels - Standard packages (SOT23, TSSOP, QFN) Advanced devices integrate EEPROM for customizable thresholds and response times.

4. Key Technical Specifications

ParameterImportance
Voltage Monitoring RangeDetermines compatibility with different power rails
Threshold AccuracyAffects system reliability (typical 1-5%)
Response TimeSpeed of fault detection (10 s-10ms range)
Supply CurrentImpacts power efficiency
Operating TemperatureDefines environmental suitability
Package TypeEnables application-specific integration

5. Application Fields

  • Consumer Electronics: Smartphones, laptops
  • Automotive: ECU systems, battery management
  • Industrial: PLCs, motor drives
  • Telecom: Base stations, routers
  • Medical: Diagnostic equipment, patient monitors

6. Leading Manufacturers & Products

ManufacturerKey ProductFeatures
Texas InstrumentsTPS3808Low-power voltage supervisor with adjustable delay
STMicroelectronicsSTM6600High-accuracy multi-voltage monitor
InfineonTLE4268Automotive power supervisor with watchdog
Analog DevicesADM1186Dual-channel voltage sequencer
ON SemiconductorMC340643V to 5V supply monitor with reset output

7. Selection Guidelines

Key considerations: - Required monitoring channels - Voltage threshold accuracy needs - Environmental operating conditions - Communication interface requirements - Package size constraints - Automotive/industrial certification needs - Integration level (standalone vs. system manager)

8. Industry Trends

Current developments include: - Increased integration with PMICs - AI-powered predictive monitoring - Enhanced functional safety (ISO 26262 compliance) - Ultra-low power consumption (<1 A standby) - Advanced package technologies (WLCSP) - Digital configurability via I2C/SPI interfaces

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