Description

TP4333 Fully-Integrated Power Bank System-On-Chip Charger IC – Package-SOP8

TP4333 is a synchronous step-up single chip solution designed for mobile power supply. It integrates a linear charge management module, a synchronous discharge management module, a power detection and LED indication module, and a protection module. The TP4333 has a built-in charge and discharge power MOS. The charge current is fixed at 0.8A. Synchronous boost supports 1A output current. The TP4333 integrates multiple safety protection functions such as temperature compensation, over-temperature protection, over-charge and over-discharge protection, output over-voltage protection, output overload protection, and output short-circuit protection to ensure the safety of the chip and lithium-ion battery. The application circuit is simple. Only a few components are needed to achieve charge management and discharge management.

Charger:

• Adaptive charging current control, excellent adapter compatibility
• Support 4.20/4.30/4.35/4.40V batteries

State of Charge (SOC) indicator:

• Integrated LED controller supports 4/3/2/1
• LEDs as the SOC indicator

Fully featured:

• Key ON/OFF
• Integrated flashlight controller
• Integrated cellphone plug-in and plug-out detector

Low power:

• Smart load detector, switching to standby mode automatically
• <100 µA standby current

Ultra simplified BOM

• Integrated power FET, charging/boosting with a single inductor

Features/Specs:

• 1A Synchronous switching charger and 5V
• Boost converter efficiency up to 92%
• Switching charger efficiency up to 91%
• Integrated power-path management,
• charging batteries and charging cellphones at the same time

Applications:

• Power bank, Portable Charger
• Mobile Phones, Smart Phones, Handheld
• Devices, Portable Media Player, Tablet, etc.

Datasheet: TP4333