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LP3910

AKTIV

Power-Management-IC (PMIC) für festplattenbasierte tragbare Media-Player

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Datenblatt

LP3910

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Regulated outputs (#) 4 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 3.3 Iout (max) (A) 1 Configurability Factory programmable, Software configurable Features Comm control, Enable, Power sequencing Rating Catalog Operating temperature range (°C) -40 to 85 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.03 Switching frequency (max) (kHz) 2000 Shutdown current (ISD) (typ) (µA) 30 Switching frequency (typ) (kHz) 2000
Regulated outputs (#) 4 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 3.3 Iout (max) (A) 1 Configurability Factory programmable, Software configurable Features Comm control, Enable, Power sequencing Rating Catalog Operating temperature range (°C) -40 to 85 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.03 Switching frequency (max) (kHz) 2000 Shutdown current (ISD) (typ) (µA) 30 Switching frequency (typ) (kHz) 2000
WQFN (NJV) 48 36 mm² 6 x 6
  • Two Low-Dropout Regulators With Programmable Output Voltages:
    • LDO1 for General Purpose Applications
    • LDO2 for Low-Noise Analog Applications
  • Green and Red LED-Charger Status Drivers
  • 4-Channel 8-Bit Dual Slope
    Analog-to-Digital (ADC) Converter
  • 2 High-Efficiency DVS Buck Converters
  • Wide Load Range Buck-Boost DC-DC Converter
  • 400-kHz I2C-Compatible Interface
  • Linear Constant-Current and Constant-Voltage Charger for Single-Cell Lithium-Ion Batteries
  • USB and Adapter Charging
  • System Power Supply Management
  • Voltage and Thermal Supervisory Circuits
  • Continuous Battery Voltage Monitoring
  • Interrupt Request Output With 8 Sources
  • 50-mΩ Battery Path Resistance
  • 100-mA to 1000-mA Full-Rate Charge Current Using Wall Adapter
  • Selectable 0.05C and 0.1C End-of-Charge (EOC) Current
  • USB Current Limits of 100, 500, and 800 mA
  • USB Pre-Qualification Current of 50 mA
  • Selectable 4.1-V, 4.2-V or 4.38-V Battery-Termination Voltages
  • 0.35% Battery-Termination Accuracy
  • ±1 LSB INL/DNL on 8-Bit ADC
  • Two Low-Dropout Regulators With Programmable Output Voltages:
    • LDO1 for General Purpose Applications
    • LDO2 for Low-Noise Analog Applications
  • Green and Red LED-Charger Status Drivers
  • 4-Channel 8-Bit Dual Slope
    Analog-to-Digital (ADC) Converter
  • 2 High-Efficiency DVS Buck Converters
  • Wide Load Range Buck-Boost DC-DC Converter
  • 400-kHz I2C-Compatible Interface
  • Linear Constant-Current and Constant-Voltage Charger for Single-Cell Lithium-Ion Batteries
  • USB and Adapter Charging
  • System Power Supply Management
  • Voltage and Thermal Supervisory Circuits
  • Continuous Battery Voltage Monitoring
  • Interrupt Request Output With 8 Sources
  • 50-mΩ Battery Path Resistance
  • 100-mA to 1000-mA Full-Rate Charge Current Using Wall Adapter
  • Selectable 0.05C and 0.1C End-of-Charge (EOC) Current
  • USB Current Limits of 100, 500, and 800 mA
  • USB Pre-Qualification Current of 50 mA
  • Selectable 4.1-V, 4.2-V or 4.38-V Battery-Termination Voltages
  • 0.35% Battery-Termination Accuracy
  • ±1 LSB INL/DNL on 8-Bit ADC

The LP3910 is a programmable system power management unit optimized for HDD-based portable media players. The device incorporates two low-dropout LDO voltage regulators, two integrated buck DC-DC converters with dynamic voltage scaling (DVS), one wide load-range buck-boost DC-DC converter with programmable output voltage, a 4-channel, 8-bit ADC, and a dual-source lithium-ion or lithium-polymer battery charger.

The LP3910 also incorporates some advanced battery management functions such as battery temperature measurement, reverse current blocking for USB, LED-charger status indication, thermally regulated internal power FETs, battery-voltage monitoring, overcurrent protection, and a 10-hour safety timer. The device is programmable through a 400-kHz I2C-compatible interface.

The LP3910 is available in a thermally-enhanced
6-mm × 6-mm × 0.8-mm 48-pin WQFN package.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP3910 is a programmable system power management unit optimized for HDD-based portable media players. The device incorporates two low-dropout LDO voltage regulators, two integrated buck DC-DC converters with dynamic voltage scaling (DVS), one wide load-range buck-boost DC-DC converter with programmable output voltage, a 4-channel, 8-bit ADC, and a dual-source lithium-ion or lithium-polymer battery charger.

The LP3910 also incorporates some advanced battery management functions such as battery temperature measurement, reverse current blocking for USB, LED-charger status indication, thermally regulated internal power FETs, battery-voltage monitoring, overcurrent protection, and a 10-hour safety timer. The device is programmable through a 400-kHz I2C-compatible interface.

The LP3910 is available in a thermally-enhanced
6-mm × 6-mm × 0.8-mm 48-pin WQFN package.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet LP3910 Power Management IC for Hard-Drive-Based Portable Media Players datasheet (Rev. M) PDF | HTML 31 Dez 2015
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide AN-1598 LP3910 Evaluation Kit (Rev. A) 30 Apr 2013
Application note Powering Portable Media Players (PMP) w/Innovative Solutions (Rev. A) 30 Apr 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WQFN (NJV) 48 Ultra Librarian
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Bestellen & Qualität

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  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
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  • Montagestandort

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