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LP8727

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具有集成 28V 线性充电器的微型到迷你 USB 接口

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LP8727

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产品详情

USB speed (Mbps) 480 Number of channels 2 Supply voltage (max) (V) 7 Supply voltage (min) (V) 2.5 Ron (typ) (mΩ) 2500 Input/output voltage (min) (V) -2 Input/output voltage (max) (V) 7 Configuration 3:1 Features Audio Switch (Negative Rail Capability), BCv1.1 Charger Detection, I2C interface, Integrated LDO, Over-Voltage Tolerance (OVT), Standby Mode, Thermal Regulation and Shutdown, UART, USB 2.0, Undervoltage Lock Out (UVLO) Rating Catalog Operating temperature range (°C) -40 to 85 Supply current (max) (µA) 400 ESD HBM (typ) (kV) 2 Bandwidth (MHz) 480
USB speed (Mbps) 480 Number of channels 2 Supply voltage (max) (V) 7 Supply voltage (min) (V) 2.5 Ron (typ) (mΩ) 2500 Input/output voltage (min) (V) -2 Input/output voltage (max) (V) 7 Configuration 3:1 Features Audio Switch (Negative Rail Capability), BCv1.1 Charger Detection, I2C interface, Integrated LDO, Over-Voltage Tolerance (OVT), Standby Mode, Thermal Regulation and Shutdown, UART, USB 2.0, Undervoltage Lock Out (UVLO) Rating Catalog Operating temperature range (°C) -40 to 85 Supply current (max) (µA) 400 ESD HBM (typ) (kV) 2 Bandwidth (MHz) 480
DSBGA (YFQ) 25 4.84 mm² 2.2 x 2.2
  • USB Multiplexing Switches
    • High-Speed USB on USB and UART Inputs
    • Negative Voltage Rail on Audio Inputs
    • Internal LDO for ID Detection and MIC Bias
    • Compatible with USB Charging Specification Rev. 1.1
    • DSS Input for Default Switch Connection
    • Low-Power MIC Standby Mode
  • Linear Charge with Single Input
    • 28 OVP on VBUS Input
    • High-Current Mode for Production Test
    • Thermal Regulation
  • Over-Voltage Protected LDO for USB Transceivers and PMU Wakeup
  • UVLO (Undervoltage Lock Out)
  • Interrupt Request to Reduce SW Polling
    • USB / ID Detection
    • SEND / END Button Detection
    • Mic Removal
    • OVLO / UVLO on VBUS
    • Charger Status
  • Thermal Shutdown Protection
  • I2C-compatible Serial Interface
  • 25-Bump 0.4 mm Pitch Thin DSBGA Package

All trademarks are the property of their respective owners.

  • USB Multiplexing Switches
    • High-Speed USB on USB and UART Inputs
    • Negative Voltage Rail on Audio Inputs
    • Internal LDO for ID Detection and MIC Bias
    • Compatible with USB Charging Specification Rev. 1.1
    • DSS Input for Default Switch Connection
    • Low-Power MIC Standby Mode
  • Linear Charge with Single Input
    • 28 OVP on VBUS Input
    • High-Current Mode for Production Test
    • Thermal Regulation
  • Over-Voltage Protected LDO for USB Transceivers and PMU Wakeup
  • UVLO (Undervoltage Lock Out)
  • Interrupt Request to Reduce SW Polling
    • USB / ID Detection
    • SEND / END Button Detection
    • Mic Removal
    • OVLO / UVLO on VBUS
    • Charger Status
  • Thermal Shutdown Protection
  • I2C-compatible Serial Interface
  • 25-Bump 0.4 mm Pitch Thin DSBGA Package

All trademarks are the property of their respective owners.

The LP8727 is designed to provide automatic multiplexing switches between Micro/Mini USB connector and USB, UART and Audio paths in cellular phone applications. It also contains a single-input Li-Ion battery charger and an overvoltage-protected LDO. Programming is handled via an I2C-compatible Serial Interface allowing control of charger, multiplexing switches, and reading status information of the device.

The multiplexing switches on USB and UART support high-speed USB, and Audio inputs can be driven to negative voltage rail. The LP8727 is compatible with USB charging specifications rev 1.1 from USB IF.

The Li-Ion charger requires few external components and integrates the power FET. Charging is thermally regulated to obtain the most efficient charging rate for a given ambient temperature. It has Overvoltage Protection (OVP) circuit at the charger input protects the PMU from input voltages up to +28V, eliminating the need for any external protection circuitry.

An overvoltage-protected LDO which can supply up to 50 mA is designed for powering up a low-voltage USB transceiver or waking up a PMU (Power Management Unit) when an external power source (either USB VBUS or wall adapter) is connected to the USB connector.

The LP8727 PMU is available in 25-bump 0.4 mm pitch thin DSBGA package (2.015 mm x 2.015 mm).

The LP8727 is designed to provide automatic multiplexing switches between Micro/Mini USB connector and USB, UART and Audio paths in cellular phone applications. It also contains a single-input Li-Ion battery charger and an overvoltage-protected LDO. Programming is handled via an I2C-compatible Serial Interface allowing control of charger, multiplexing switches, and reading status information of the device.

The multiplexing switches on USB and UART support high-speed USB, and Audio inputs can be driven to negative voltage rail. The LP8727 is compatible with USB charging specifications rev 1.1 from USB IF.

The Li-Ion charger requires few external components and integrates the power FET. Charging is thermally regulated to obtain the most efficient charging rate for a given ambient temperature. It has Overvoltage Protection (OVP) circuit at the charger input protects the PMU from input voltages up to +28V, eliminating the need for any external protection circuitry.

An overvoltage-protected LDO which can supply up to 50 mA is designed for powering up a low-voltage USB transceiver or waking up a PMU (Power Management Unit) when an external power source (either USB VBUS or wall adapter) is connected to the USB connector.

The LP8727 PMU is available in 25-bump 0.4 mm pitch thin DSBGA package (2.015 mm x 2.015 mm).
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类型 标题 下载最新的英语版本 日期
* 数据表 LP8727 Micro/Mini USB Interface with Integrated 28V Charger 数据表 (Rev. A) 2013年 5月 3日
应用手册 高速接口布局指南 (Rev. J) PDF | HTML 英语版 (Rev.J) PDF | HTML 2023年 3月 23日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

驱动程序或库

LP8727SW-LINUX — 用于 LP8727 的 Linux 驱动程序

The Linux driver supports the LP8727 USB interface with integrated 28-V linear charger. The Linux driver supports communication through the I2C bus and interfaces with the power-supply subsystem.

 

Linux mainline status

Available in Linux Mainline: Yes
Available through git.ti.com: N/A

Supported (...)

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PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能，允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装，如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

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用户指南: PDF
英语版 (Rev.A): PDF
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封装 引脚 CAD 符号、封装和 3D 模型
DSBGA (YFQ) 25 Ultra Librarian
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订购和质量

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

支持和培训

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