GRAIN SEMICONDUCTOR GR3014A

GR3014A is a system-on-chip integrating lithium battery charge management, synchronous boost converter, battery fuel gauge, and protection functions, specifically designed for Bluetooth charging docks. Its high level of integration significantly reduces the number of external components, helping to minimize solution size and lower BOM cost. The chip's own standby current is only 7uA. The charging current is 0.38A, and the synchronous boost converter supports 0.8A output current with auto and push-button power on/off functionality; the auto power-off current threshold is 4mA. The chip features built-in power path management, supporting simultaneous charging and discharging operation, with heavy load and short-circuit protection in this mode — eliminating the need for an external diode and preventing damage to it under heavy load or short-circuit conditions.

• Built-in power path management with protection, supports simultaneous charging and discharging
• Auto power-on and single-click button power-on
• Auto power-off and long-press button power-off, auto power-off current: 4mA
• Ultra-low standby current: 7uA
• Charge current: 0.38A
• Discharge current: 0.8A
• Preset charge voltage: 4.2V/4.35V
• Intelligent temperature regulation
• Output short-circuit protection, heavy load protection, input overvoltage protection
• ESOP-8L package

• Bluetooth headset charging cradle
• Flashlight
• Battery-powered handheld portable devices