MAX14747

USB Detection with Smart Power Selector Li+ Chargers

Single-Chip Solution for USB Charging and Charger Detection


Description

The MAX14746/MAX14747 are a series of USB charger detectors with an integrated Smart Power Selector™ linear charger solutions that provide a single-chip solution for charging and charger detection.

The MAX14746/MAX14747 charger detectors are compliant to USB Battery Charger Detection Rev 1.2* and capable of detecting multiple USB battery-charging methods, including Standard Downstream Ports (SDP), Charging Downstream Ports (CDP), and Dedicated Charger Ports (DCP). The devices also detect common proprietary charge adapters, including those from Apple.

The MAX14746/MAX14747 battery chargers feature Smart Power Selector operation, allowing operation with dead or no battery present. The devices limits USB VBUS current based on the detect charger source type. If the charger power source is unable to supply the entire system load, the smart-power control circuit supplements the system load with current from the battery.

The devices protect against overvoltage faults up to 28V.

This series of USB charger detectors are available with several options, with slight variations in, for example, power-up states. These variations are noted throughout this data sheet.

There are five options available with slight variations in, for example, power-up states. The devices are available in a 25-ball, 0.4mm pitch wafer-level package (WLP), and are specified over the -40°C to +85°C extended temperature range.

Key Features

  • Flexible System Design to Operate with Any USB Charger Source
    • Compliant to USB Battery Charger Rev 1.2 Specification
    • Supports Proprietary USB Charging Sources, Including Apple
    • D+/D- Bias Voltage Supported
  • Easy to Implement Li+ Battery Charging
    • Smart Power Selector
    • Fully Compliant with Dead Battery/Weak Battery Charging According to USB 2.0 Specification
    • JEITA Charge Protection
    • Thermal Protection
    • Internal USB D+/D- Switch to Manage Connection
  • Integrates High Level of Protection
    • 28V Tolerant Input on VB
    • ±15kV Human Body Model ESD Protection on CDP and CDN

Applications/Uses

  • Portable Consumer Devices
  • Portable Digital Cameras
  • Portable Digital Video Cameras
  • Portable Industrial Devices
Part Number Protocol Config. VSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
Supported USB Battery Charging Specification VBUS Tolerance
(V)
ESD Protection RON
(Ω)
RFLAT(ON)
(Ω)
IL(OFF)
(nA)
CON
(pF)
COFF
(pF)
Package/Pins
min max min max typ max
MAX14746 NEW! USB 2 x SPST 2.2 5.5 0 1.2 28 ±15kV HBM 6 0.3 360 6 3.5
WLP/25
MAX14747 NEW!
WLP/25
See All USB Charger Detectors (7)
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.


MAX14746EVKIT: Evaluation Kit for the MAX14746/MAX14747

Quality and Environmental Data

Request Reliability Report for: MAX14747 
Lead-Free Package Tin (Sn) Whisker Reports

Related Resources


MAX20310
Power Management Solution

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  • Extend Product Shelf-Life
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MAX14746
USB Detection with Smart Power Selector Li+ Chargers

  • Flexible System Design to Operate with Any USB Charger Source
  • Easy to Implement Li+ Battery Charging
  • Integrates High Level of Protection

MAX14747
USB Detection with Smart Power Selector Li+ Chargers

  • Flexible System Design to Operate with Any USB Charger Source
  • Easy to Implement Li+ Battery Charging
  • Integrates High Level of Protection

MAX14745
Wearable Charge-Management Solution

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