USB Charger Detection with Integrated Overvoltage Protection

Compliant to USB Battery Charging Specification Revision 1.2

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The MAX20332 is a USB charger detector compliant with USB Battery Charging Specification Revision 1.2. 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 device implements USB Battery Charging Specification Revision 1.2-compliant detection logic. The device also includes Apple® charger detection that allows identification of resistor-divider networks on D+/D-.

The internal double-pole double-throw (DPDT) USB switch is compliant to Hi-Speed USB, full-speed USB, low-speed USB, and UART signals. The device’s internal switch features low on-resistance, low on-resistance flatness, and very low capacitance. The ID pin controls the DPDT switch position. The MAX20332 features high-ESD protection up to ±15kV Human Body Model (HBM)on CD+, CD-, and ID pins.

The MAX20332 is available in a 16-bump, 0.4mm pitch, 1.8mm x 1.9mm wafer-level package (WLP) and operates over the -40°C to +85°C extended temperature range.
MAX20332: Functional Diagram MAX20332: Functional Diagram Enlarge+

Key Features

  • Consumes Less Power
    • Low Battery Standby Current 5μA (typ)
  • Delivers USB Compliance and Flexibility
    • Compliant to USB Battery Charging Specification Revision 1.2
    • Data Contact Detection for Foolproof Connector Insertion Detection
    • Dedicated Charger Detection
    • Standard Downstream Port Detection
    • Charging Downstream Port Detection
    • Apple Charger Detection
  • Facilitates System Design
    • Integrated Precision 1.5A Overvoltage Protection (OVP)
    • Negative Audio Capable DPDT Hi-Speed USB Switches
    • Automatic Switch and Charger Interface Control
    • Full Control by I2C Interface
    • Interrupt for Device Status Change
  • Saves Board Space
    • VBUS Connection Capable of 36V
    • ±15kV HBM ESD Protection
    • 1.8mm x 1.9mm WLP Package


  • DSCs and Camcorders
  • e-Readers
  • Smartphones
  • Tablet PCs
Part NumberProtocolConfig.VSUPPLY (Single)
VSUPPLY (Single)
Dynamic Range (max)
Supported USB Battery Charging SpecificationVBUS Tolerance
ESD ProtectionRON
minmaxminmaxmaxmaxtypmaxSee Notes
MAX20332 USBDPDT2.85.5-±15kV HBM60.06100036072
$0.75 @1k
See All USB Charger Detectors (10)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX20332EVKIT: Evaluation Kit for the MAX20332

Quality and Environmental Data

Request Reliability Report for: MAX20332 
Lead-Free Package Tin (Sn) Whisker Reports
MAX20332 EV Kit Tool  

CAD Symbols and Footprints

  • MAX20332EWE+
  • MAX20332EWE+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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