Texas Instruments TPS65910 EVM, Руководство пользователя

Страница: 2 / 24

User ' s Guide
SWCU065E – March 2010 – Revised May 2011
Introduction
1 Description
Device Description:
The TPS65910 device is an integrated power-management IC available in 48-QFN package and is
dedicated to applications powered by one Li-Ion or Li-Ion polymer battery cell, 3-series Ni-MH cells, or a 5
V input, and which requires multiple power rails. The device provides three step-down converters, one
step-up converter, and eight low dropout voltage regulators (LDOs) and is designed to support the specific
power requirements of OMAP
™ processors.
Two of the step-down converters provide power for dual processor cores and are controllable by a
dedicated class-3 SmartReflex
™ interface for optimum power savings. The third converter provides power
for the I/Os and memory in the system. The device includes eight general-purpose LDOs providing a wide
range of voltages and current capabilities. These LDOs can be controlled by the inter-integrated circuit
(I
2
C ™ ) interface.
In addition to the power resources, the device contains an embedded power controller (EPC) to manage
the power sequencing requirements of OMAP processor and a real-time clock (RTC).
EVM Kit Description:
The TPS65910 evaluation module (EVM) is a stand-alone module that demonstrates the functions of the
integrated power management IC. It uses a USB-to-GPIO interface card (not included in the kit) to control
the standard I
2
C interfaces in the TPS65910 device. It includes Windows ™ -compatible software to
interface with the device. The sofware is a simple graphical user interface (GUI) that simplifies registers
access for the IC.
EPROM Power-Up Sequence Description:
This user guide is common for all TPS65910x parts. The only difference in these parts is the EEPROM
sequence for power-up. Each part has a unique EEPROM sequence to satisfy the attached application
processor. For details of the EEPROM sequence please refer to the corresponding user guide in the
“ Application Notes ” section on the TPS65910x folder page.
1.1 Applications
• Embedded application processor power
• Handheld/portable systems
2 Introduction SWCU065E – March 2010 – Revised May 2011
Submit Documentation Feedback
Copyright © 2010 – 2011, Texas Instruments Incorporated