DESCRIPTION
HM1495 is a synchronous buck converter chip that supports multiple fast charging protocols and dual A-port output. It integrates 3.5A high-efficiency simultaneous Step-down converter, CC/CV mode, QC3.0/PE fast charging protocol and corresponding management logic. Only a small number of peripheral devices are needed Compose a complete high-performance QC3.0/PE fast charging dual-port car charger solution.
HM1495 supports dual-port output and supports two working modes: normal A-port priority mode and QC A-port priority mode. Set these two modes. The default is normal A-port priority mode, which can be expanded to QC A-port priority mode.
Specifications
• Synchronous buck converter
▶Output current up to 3.5A
▶The N power tube can be expanded to 5A under external expansion
▶Input voltage range 6~40V
▶Support CC/CV mode
▶Support line loss compensation
▶Support spread spectrum
• Dual output
▶The default normal A-port priority mode
▶Expanded QC port A priority mode
• QC3.0 fast charge
▶Support QC2.0/QC3.0
▶Support Class A/Class B
• PE fast charge
▶Support PE+
▶Support 3.6~12V output
• BC1.2 module
▶Support BC1.2 DCP mode
▶Support Apple/Samsung high current charging mode recognition
• protection mechanism
▶Soft start
▶Input overvoltage protection
▶Input undervoltage protection
▶Output overcurrent protection
▶Output short circuit protection
▶Over temperature protection
• QFN-28(4x4mm) package
APPLICATION areas
• Car charger
• Adapter
• Patch panel