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Writing Driver for the Low Cost Power Management IC

Author(s):

Rahul A. Pipaliya , Gujarat Technological University, Ahmedabad, India; Arjav A.Bavarva, R K UNIVERSITY, RAJKOT; Shankar Patel, LEXIS TECHNOLOGY , GANDHINAGAR

Keywords:

Low Cost PMIC, power management,AM3359, Device driver.

Abstract

In this paper, the topic attempts to clarify that in existing system from Texas Instrument product having AM3359 processor connected with I2C to highly integrated PMIC TPS65950 having cost of $4.4/1ku.This devices provides the sufficient voltages to the various modules like Wi-Fi 802.11 needs 3.3V and 1.8V,NAND flash needs 3.3V,DDR3 needs 1.5V,2.5inch HDD needs +5V,USB needs 5V.It has also fuel gauge IC called bq27510 which continuously monitors the power of battery and state the charging/Discharging in percentage. The main agenda of this topic is to replace this PMIC with PIC microcontroller having the same function and cost of $2.8(1-4 piece).So the overall cost can be reduced by $4.4-$2.8=$1.6.For this new device the new driver will have been written on Linux platform. For this new low cost product driver called power, regulator, I2C,IRQ have been written and tested on new hardware.

Other Details

Paper ID: IJSRDV2I3168
Published in: Volume : 2, Issue : 3
Publication Date: 01/06/2014
Page(s): 1743-1747

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