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USB Type-C Charger Detector with Integrated OVP

Flexibly Enables USB-C Solutions and Provides Robust Protection

Product Details

The MAX20342 is a USB Type-C® charger detector that is also capable of detecting chargers compliant with the USB Battery Charging Specification Revision 1.2. The USB Type-C charger detection circuitry functions as a UFP or DRP depending on factory configuration.

The device implements USB Type-C detection logic and enables systems to support charging based on USB Type-C ports. The device also includes charger detection capability for BC1.2 compatible chargers and detects USB standard downstream ports (SDPs), USB charging downstream ports (CDPs), dedicated charger ports (DCPs), and other proprietary chargers. GPIO outputs allow the MAX20342 to control an external lithium-ion (Li+) battery charger based on charger detection results.

The MAX20342 integrates a resistance detection block that can be used to automatically configure factory configuration states based upon attached resistors. Additionally, the resistance measurement can be configured to detect the presence of moisture in the USB Type-C connector.

The MAX20342 also features an integrated low on-resistance, low-capacitance double-pole double-throw (DPDT) USB switch that can pass Hi-Speed USB, full-speed USB, low-speed USB, and UART signals. The switch position can be automatically configured by the USB detection logic or manually controlled.

The MAX20342 features high-ESD protection up to ±15kV human-body model (HBM) on CC1, CC2, SBU1, and SBU2 pins. The CDP and CDN pins are protected against ESD up to ±6kV. The MAX20342 is specified for ±15kV Air-Gap and ±8kV Contact Discharge IEC 61000-4-2 on the CC1, CC2, SBU1, and SBU2 pins. The MAX20342 is available in a 24-bump, 0.4mm pitch, 2.62mm x 2.02mm wafer-level package (WLP) and operates over the -40°C to +85°C extended temperature range.

Key Features

  • Low Power Consumption
    • Battery Standby Current 17µA (typ)
    • Battery Shutdown Current 2.5µA (typ)
  • Delivers USB Compliance and Flexibility
    • Compliant with USB Type-C Specification Revision 1.3
    • Compliant with USB Battery Charger Specification Revision 1.2
    • Detects Proprietary Chargers such as Apple® and Samsung®
  • Simplifies Complex System Designs
    • Integrated Overvoltage Protection
    • Negative Swing Audio Capable Hi-Speed USB/UART Switches
    • Automatic Switch and Charger Interface Control
    • Full Control through I2C Interface
    • Interrupts for Device Status Changes
  • Improves Quality and Reliability
    • Automatic Factory Mode Configuration
    • USB Type-C Port Moisture Detection
    • Low-Corrosion DRP Mode
  • Robust Protection
    • VB Connection Withstands up to +30V
    • VB Surge Protection up to ±120V
    • ±15kV HBM ESD Protection on CC1, CC2, SBU1 and SBU2 Pins
    • ±6kV HBM ESD Protection on CDP and CDN Pins
    • ±15kV Air-Gap IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
    • ±8kV Contact Discharge IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
  • Saves Board Space
    • 2.62mm x 2.02mm WLP Package

Applications/Uses

  • DSCs and Camcorders
  • Tablets
  • Smartphones
  • e-Readers
Parametric specs for USB Charger Detectors
Protocol BC1.2
USB Type-C
Configuration DPDT
VSUPPLY (Single) (V) (min) 2.75
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 5.5
Supported USB Battery Charging Specification USB Type-C
VBUS Tolerance (V) 28
ESD Protection ±15kV HBM
±15kV IEC 61000-4-2 Air Gap
±8kV IEC 61000-4-2 Contact Discharge
RON (Ω) (max) 6
RFLAT(ON) (Ω) (typ) 0.005
Bandwidth (MHz) 400
IL(OFF) (nA) (max) 1500
Package/Pins WLP/24
Budgetary
Price (See Notes)
$1.23 @1k
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Simplified Block Diagram

MAX20342: Simplified Block Diagram MAX20342: Simplified Block Diagram Zoom icon

Technical Docs

Design & Development

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Description

The MAX20342 evaluation kit (EV kit) is a fully assembled and tested PCB that evaluates the MAX20342 USB Type-C® charger detector with integrated overvoltage protection. The EV kit features a Pmod™ connector, allowing the USB2PMB2 adapter board to provide I2C interface.

The EV kit features an on-board LDO to generate a supply voltage from the USB +5V. The on-board LDO output is configurable for 4.2V, 3.3V, or 2.3V to power the IC.

The EV kit software controls the USB2PMB2 adapter board over the USB, which generates I2C commands. The EV kit ships with jumpers installed and supply voltages set to typical operating values.

View Details

Features

  • USB-Powered Operation
  • USB Type-C Receptable Connector
  • Proven High-Speed USB PCB Layout
  • Pmod I2C Interface
  • Flexible Configuration
  • On-Board Regulator and USB Connectors for Device Multiplexing
  • Windows® 8/10-Compatible GUI Software
  • Fully Assembled and Tested

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Parameters

Parametric specs for USB Charger Detectors
Protocol BC1.2
USB Type-C
Configuration DPDT
VSUPPLY (Single) (V) (min) 2.75
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 5.5
Supported USB Battery Charging Specification USB Type-C
VBUS Tolerance (V) 28
ESD Protection ±15kV HBM
±15kV IEC 61000-4-2 Air Gap
±8kV IEC 61000-4-2 Contact Discharge
RON (Ω) (max) 6
RFLAT(ON) (Ω) (typ) 0.005
Bandwidth (MHz) 400
IL(OFF) (nA) (max) 1500
Package/Pins WLP/24
Budgetary
Price (See Notes)
$1.23 @1k

Key Features

  • Low Power Consumption
    • Battery Standby Current 17µA (typ)
    • Battery Shutdown Current 2.5µA (typ)
  • Delivers USB Compliance and Flexibility
    • Compliant with USB Type-C Specification Revision 1.3
    • Compliant with USB Battery Charger Specification Revision 1.2
    • Detects Proprietary Chargers such as Apple® and Samsung®
  • Simplifies Complex System Designs
    • Integrated Overvoltage Protection
    • Negative Swing Audio Capable Hi-Speed USB/UART Switches
    • Automatic Switch and Charger Interface Control
    • Full Control through I2C Interface
    • Interrupts for Device Status Changes
  • Improves Quality and Reliability
    • Automatic Factory Mode Configuration
    • USB Type-C Port Moisture Detection
    • Low-Corrosion DRP Mode
  • Robust Protection
    • VB Connection Withstands up to +30V
    • VB Surge Protection up to ±120V
    • ±15kV HBM ESD Protection on CC1, CC2, SBU1 and SBU2 Pins
    • ±6kV HBM ESD Protection on CDP and CDN Pins
    • ±15kV Air-Gap IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
    • ±8kV Contact Discharge IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
  • Saves Board Space
    • 2.62mm x 2.02mm WLP Package

Applications/Uses

  • DSCs and Camcorders
  • Tablets
  • Smartphones
  • e-Readers

Description

The MAX20342 is a USB Type-C® charger detector that is also capable of detecting chargers compliant with the USB Battery Charging Specification Revision 1.2. The USB Type-C charger detection circuitry functions as a UFP or DRP depending on factory configuration.

The device implements USB Type-C detection logic and enables systems to support charging based on USB Type-C ports. The device also includes charger detection capability for BC1.2 compatible chargers and detects USB standard downstream ports (SDPs), USB charging downstream ports (CDPs), dedicated charger ports (DCPs), and other proprietary chargers. GPIO outputs allow the MAX20342 to control an external lithium-ion (Li+) battery charger based on charger detection results.

The MAX20342 integrates a resistance detection block that can be used to automatically configure factory configuration states based upon attached resistors. Additionally, the resistance measurement can be configured to detect the presence of moisture in the USB Type-C connector.

The MAX20342 also features an integrated low on-resistance, low-capacitance double-pole double-throw (DPDT) USB switch that can pass Hi-Speed USB, full-speed USB, low-speed USB, and UART signals. The switch position can be automatically configured by the USB detection logic or manually controlled.

The MAX20342 features high-ESD protection up to ±15kV human-body model (HBM) on CC1, CC2, SBU1, and SBU2 pins. The CDP and CDN pins are protected against ESD up to ±6kV. The MAX20342 is specified for ±15kV Air-Gap and ±8kV Contact Discharge IEC 61000-4-2 on the CC1, CC2, SBU1, and SBU2 pins. The MAX20342 is available in a 24-bump, 0.4mm pitch, 2.62mm x 2.02mm wafer-level package (WLP) and operates over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX20342: Simplified Block Diagram MAX20342: Simplified Block Diagram 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