MAX14746 Datasheet, PDF (1/3 Pages) Maxim Integrated Products – Flexible System Design to Operate with Any USB Charger Source

ABRIDGED DATA SHEET
EVALUATION KIT AVAILABLE
MAX14746/MAX14747
USB Detection with Smart Power
Selector Li+ Chargers
General 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 limit USB V_BUS
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 (see Ordering Information).
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.
Applications
●● Portable Consumer Devices
●● Portable Digital Cameras
●● Portable Digital Video Cameras
●● Portable Industrial Devices
Benefits and 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
Ordering Information appears at end of data sheet.
*Except DCD timeout extended from 900ms to 2s for the
MAX14746/MAX14747.
Smart Power Selector™ is a trademark of Maxim Integrated
Products, Inc.
19-8036; Rev 0; 11/15