Product details

USB speed (Mbps) 480 Number of channels (#) 2 Supply voltage (Max) (V) 7 Supply voltage (Min) (V) 2.5 Ron (Typ) (Ohms) 2.5 Input/ouput voltage (Min) (V) -2 Input/ouput voltage (Max) (V) 7 Configuration 3:1 Features USB 2.0, UART, Audio Switch (Negative Rail Capability), BCv1.1 Charger Detection, Standby Mode, Integrated LDO, Thermal Regulation and Shutdown, Over-Voltage Tolerance (OVT), Undervoltage Lock Out (UVLO), I2C Interface Rating Catalog Operating temperature range (C) -40 to 85 ICC (Max) (uA) 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) (Ohms) 2.5 Input/ouput voltage (Min) (V) -2 Input/ouput voltage (Max) (V) 7 Configuration 3:1 Features USB 2.0, UART, Audio Switch (Negative Rail Capability), BCv1.1 Charger Detection, Standby Mode, Integrated LDO, Thermal Regulation and Shutdown, Over-Voltage Tolerance (OVT), Undervoltage Lock Out (UVLO), I2C Interface Rating Catalog Operating temperature range (C) -40 to 85 ICC (Max) (uA) 400 ESD HBM (Typ) (kV) 2 Bandwidth (MHz) 480
DSBGA (YFQ) 25 0 mm² 2.05 x 2.05
  • 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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Technical documentation

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* Data sheet LP8727 Micro/Mini USB Interface with Integrated 28V Charger datasheet (Rev. A) 03 May 2013
Application note High-Speed Interface Layout Guidelines (Rev. I) 14 Apr 2022

Design & development

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Driver or library

LP8727SW-LINUX — Linux driver for LP8727

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

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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