Top

USB Battery Charger Detectors

Smallest Complete Port Detection Devices to Support USB and Apple Chargers

Product Details

The MAX14578E/MAX14578AE are USB charger detectors compliant with USB Battery Charging Revision 1.1. The USB charger-detection circuitry detects USB standard downstream ports (SDPs), USB charging downstream ports (CDPs), or dedicated charger ports (DCPs), and controls an external lithium-ion (Li+) battery charger.

The devices implement USB Battery Charging Revision 1.1-compliant detection logic including data contact detection, D+/D- short detection, and charging downstream port identification. The MAX14578AE features an enable (active-low EN) input and an LDO output.

In addition, the internal USB switch is compliant to Hi-Speed USB, full-speed USB, and low-speed USB signals. The devices feature low on-resistance, low on-resistance flatness, and very low capacitance. The devices also feature high-ESD protection up to ±15kV Human Body Model on the CD+ and CD- pins.

In addition, the MAX14578E/MAX14578AE feature Apple and Sony charger detection that allows identification of resistor-divider networks on D+/D-.

The MAX14578E/MAX14578AE are available in 12-bump, 0.4mm pitch, 1.3mm x 1.68mm WLP and 16-pin TQFN packages and operate over the -40°C to +85°C extended temperature range.

Key Features

  • Compliant to USB Battery Charging Revision 1.1
  • Data Contact Detection for Foolproof Connector Insertion Detection
  • Charging Downstream Detection
  • Apple/Sony Charger Detection
  • Dedicated Charger Detection
  • China YD/T1591-Compliant Charger Detection
  • Internal Switches Isolate the USB Transceiver During the Charger Detection Process
  • VBUS Connection Capable of 28V
  • Device Status Change Interrupt
  • Low Supply Current
  • High ESD Protection on CD+ and CD-
    • ±15kV Human Body Model
    • ±8kV IEC 61000-4-2 Contact Discharge

Applications/Uses

  • Cell Phones
  • DSC and Camcorder
  • e-Book Readers
  • Media Players
  • MID (Mobile Internet Device)
Parametric specs for USB Charger Detectors
Protocol USB
Configuration 2 x SPST
VSUPPLY (Single) (V) (min) 2.8
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) -1.76
VSIGNAL (V) (max) 3.25
Dynamic Range (max) (V) (max) 5
Supported USB Battery Charging Specification 1.1
VBUS Tolerance (V) 28
ESD Protection ±8kV IEC 61000-4-2 Contact Discharge
RON (Ω) (max) 6
RFLAT(ON) (Ω) (typ) 0.06
Bandwidth (MHz) 1000
IL(OFF) (nA) (max) 360
CON (pF) 4.5
COFF (pF) 2
Package/Pins TQFN/16
WLP/12
Budgetary
Price (See Notes)
$1.13 @1k
View More

Simplified Block Diagram

MAX14578AE, MAX14578E: Functional Diagram/Typical Application Circuit MAX14578AE, MAX14578E: Functional Diagram/Typical Application Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX14578 evaluation kit (EV kit) provides a proven design to evaluate the MAX14578 USB battery charger detector in a 12-bump wafer-level package (WLP). The IC features charger detection compliant to USB Battery Charging Revision 1.1, dedicated charger detection, Apple charger detection, China YD/T1591-compliant charger detection, and USB pass-through communication. The EV kit has various power options to separate the charging current from the system current. The EV kit is self-powered through USB, but needs external power to demonstrate charging. The EV kit features the MAX8903A 1-cell lithium-ion (Li+) DC-DC USB charger for interfacing with the MAX14578 in an application setting.

The EV kit uses Windows XP®-, Windows Vista®-, and Windows® 7-compatible software to provide a simple graphical user interface (GUI) to simplify evaluation. The EV kit GUI enables testing of the IC's features. The EV kit PCBs come with a MAX14578EEWC+ installed.

View Details

Features

  • Windows XP-, Windows Vista-, and Windows 7-Compatible Software
  • GUI Simplifies Learning the IC’s Operation
  • Includes MAX8903A USB Charger for Application Testing
  • Can be USB Powered or Externally Powered for Greater Charging Current
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX14578A evaluation kit (EV kit) provides a proven design to evaluate the MAX14578AE USB battery charger detector in a 12-bump wafer-level package (WLP). The IC features charger detection compliant to USBIF battery charging spec, dedicated charger detection, Apple/Sony charger detection, China YD/T1591-compliant charger detection, and USB pass-through communication. The EV kit has various power options to separate the charging current from the system current. The EV kit features the MAX8903A 1-cell lithium-ion (Li+) DC-DC USB charger for interfacing with the MAX14578AE in an application setting.

The EV kit PCB comes with a MAX14578AEEWC+ installed.

View Details

Features

  • Includes MAX8903A USB Charger for Application Testing
  • Can be USB Powered or Externally Powered for Greater Charging Current
  • Proven PCB Layout
  • Fully Assembled and Tested

/en/design/design-tools/ee-sim.html?

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.

Parameters

Parametric specs for USB Charger Detectors
Protocol USB
Configuration 2 x SPST
VSUPPLY (Single) (V) (min) 2.8
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) -1.76
VSIGNAL (V) (max) 3.25
Dynamic Range (max) (V) (max) 5
Supported USB Battery Charging Specification 1.1
VBUS Tolerance (V) 28
ESD Protection ±8kV IEC 61000-4-2 Contact Discharge
RON (Ω) (max) 6
RFLAT(ON) (Ω) (typ) 0.06
Bandwidth (MHz) 1000
IL(OFF) (nA) (max) 360
CON (pF) 4.5
COFF (pF) 2
Package/Pins TQFN/16
WLP/12
Budgetary
Price (See Notes)
$1.13 @1k

Key Features

  • Compliant to USB Battery Charging Revision 1.1
  • Data Contact Detection for Foolproof Connector Insertion Detection
  • Charging Downstream Detection
  • Apple/Sony Charger Detection
  • Dedicated Charger Detection
  • China YD/T1591-Compliant Charger Detection
  • Internal Switches Isolate the USB Transceiver During the Charger Detection Process
  • VBUS Connection Capable of 28V
  • Device Status Change Interrupt
  • Low Supply Current
  • High ESD Protection on CD+ and CD-
    • ±15kV Human Body Model
    • ±8kV IEC 61000-4-2 Contact Discharge

Applications/Uses

  • Cell Phones
  • DSC and Camcorder
  • e-Book Readers
  • Media Players
  • MID (Mobile Internet Device)

Description

The MAX14578E/MAX14578AE are USB charger detectors compliant with USB Battery Charging Revision 1.1. The USB charger-detection circuitry detects USB standard downstream ports (SDPs), USB charging downstream ports (CDPs), or dedicated charger ports (DCPs), and controls an external lithium-ion (Li+) battery charger.

The devices implement USB Battery Charging Revision 1.1-compliant detection logic including data contact detection, D+/D- short detection, and charging downstream port identification. The MAX14578AE features an enable (active-low EN) input and an LDO output.

In addition, the internal USB switch is compliant to Hi-Speed USB, full-speed USB, and low-speed USB signals. The devices feature low on-resistance, low on-resistance flatness, and very low capacitance. The devices also feature high-ESD protection up to ±15kV Human Body Model on the CD+ and CD- pins.

In addition, the MAX14578E/MAX14578AE feature Apple and Sony charger detection that allows identification of resistor-divider networks on D+/D-.

The MAX14578E/MAX14578AE are available in 12-bump, 0.4mm pitch, 1.3mm x 1.68mm WLP and 16-pin TQFN packages and operate over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX14578AE, MAX14578E: Functional Diagram/Typical Application Circuit MAX14578AE, MAX14578E: Functional Diagram/Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.