Sunday, March 05, 2017

TPS65070 Handheld Gadget Power Chip

One chip that takes care of all Power requirements in a Portable Electronic Gadget. Power Management Multi-Channel IC (PMIC) Solutions - PMIC Solutions with and without Battery Charger.

TPS65070 Handheld Gadget Power Chip

A battery charger for single Li-Ion or Li-Polymer cell. The voltages needed for an embedded system. Includes PWM mode using I2C. wLED Boost Converter, Touch Screen Interface. 10 Bit A/D Converter too.

TPS65070 Handheld Gadget Power Chip

Charger/Power Path Management:
  • 2A Output Current on the Power Path
  • Linear Charger; 1.5A Maximum Charge
  • I Limit - 100mA/500mA/ 800mA/1300mA
  • Thermal Regulation, Safety Timers
  • Temperature Sense Input
Battery charging, gauging and protection

"As different battery technologies like Lithium Iron Phosphate (LiFePO4) and Super Capacitor are becoming more popular, TI .........."

Figure below shows a complete application diagram that details how to connect the TPS65070 to power an OMAP-L132/L138 application processor.

TEAC USB Interface

The TPS65070 is a single-chip with multiple voltage outputs. Here it provides the different voltages required by the DSP chip. It is a convenient, integrated solution to provide the power to the main chip instead of using separate regulators.