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LP3910

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面向基于硬盘的便携式媒体播放器的电源管理 IC (PMIC)

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LP3910

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产品详情

Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 3.3 Iout (max) (A) 1 Features Comm control, Enable, Power sequencing Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.03 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 30 Switching frequency (typ) (kHz) 2000
Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 3.3 Iout (max) (A) 1 Features Comm control, Enable, Power sequencing Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.03 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 85 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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类型 标题 下载最新的英语版本 日期
* 数据表 LP3910 Power Management IC for Hard-Drive-Based Portable Media Players 数据表 (Rev. M) PDF | HTML 2015年 12月 31日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
用户指南 AN-1598 LP3910 Evaluation Kit (Rev. A) 2013年 4月 30日
应用手册 Powering Portable Media Players (PMP) w/Innovative Solutions (Rev. A) 2013年 4月 30日

设计和开发

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WQFN (NJV) 48 查看选项
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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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