DESCRIPTION

· The MC32BC3770 is a fully programmable switch-mode charger with dual-path output for single-cell Li-Ion and Li-Polymer batteries.

· It features a single input with a 20 V withstanding input and charges the battery with a current up to 2.0 A.

· The charging parameters and operating modes are programmable via an I2C interface operating up to 400 kHz.

· The BC3770 integrates OVP and Power FETs, switching at 1.5 MHz to minimize external component size.

· It can operate as a boost regulator for USB-OTG function via I2C command or an external pin.

· Available in a 25-bump, 2.27 mm x 2.17 mm WLCSP package.

FEATURES

· Dual-path output for system power-up with a dead battery.

· Single input for USB/TA with a 20 V maximum withstanding input voltage.

· High-efficiency synchronous switching regulator.

· Up to 2.0 A load current for system or battery.

· Programmable charge parameters via I2C interface.

· 1.5 MHz switching frequency for minimized external passive components.

· Charge reduction mode for maximizing charging efficiency.

APPLICATIONS

· Internet of Things (IoT).

· Handheld consumer devices.

· Wearable applications.

· mPOS terminals.

· Medical portable equipment.

· Consumer tablets.