IP5189T

IP5189T is a multi-functional power management SOC integrating a boost converter, lithium battery charge management, and battery level indication, providing a complete power solution for power banks. The high integration and rich feature set of the IP5189T require minimal external components in application, effectively reducing the overall solution size and lowering BOM cost. The IP5189T uses a single inductor to achieve both buck and boost functions, supporting low-cost inductors and capacitors. The IP5189T synchronous boost system delivers 2.1A output current with conversion efficiency up to 92%. Under no-load conditions, it automatically enters sleep mode, reducing quiescent current to below 100uA. The IP5189T adopts switched charging technology, providing 2.1A current with charging efficiency up to 91%. Built-in IC temperature and input voltage intelligently regulate charging current. The IP5189T supports external PIN selection of battery level curves for accurate battery level display. It supports 4, 3, 2, and 1 LED battery level display and lighting functions.

Applications

• Power banks / portable chargers
• Mobile phones, tablets, and other portable devices

Key features

• Synchronous switch charge/discharge
• 2.1A synchronous boost conversion, 2.1A synchronous switch charging, boost efficiency up to 92%, charging efficiency up to 91%
• Built-in power path management, supports simultaneous charging and discharging
• Automatic charge current adjustment to match adapter output capability
• Supports 4.20V, 4.35V, and 4.4V batteries
• NTC temperature protection support
• External pin-configurable charge current
• Supports 4/3/2/1 LED battery level display
• Pin-configurable battery level curve for more uniform LED indication
• Built-in flashlight driver
• Automatic detection of phone insertion and removal
• Integrated DCP smart identification for phone charging current
• Supports load high-current line compensation
• Smart load detection with automatic standby, standby current less than 100μA
• Integrated power MOSFETs, single-inductor charge/discharge
• Output overcurrent, overvoltage, and short-circuit protection
• Input overvoltage, overcharge, over-discharge, and overcurrent discharge protection
• Full system over-temperature protection
• ESD 4KV, transient voltage withstand 11V