The simplified system schematic in the bq769x0 data sheet shows a boot switch to wake the bq769x0 battery monitor. While this is a simple solution in some cases this switch will not meet the needs of the system. This application report describes proposed circuit alternatives for the boot switch that may be considered for system design.
A nickel/palladium (Ni/Pd) lead finish for integrated circuits (IC) was introduced in 1989. In 1998 solderability test results were published on Ni/Pd-finished components using a Sn/Ag/Cu/Sb lead-free (Pb-free) solder paste and printed wiring board (PWB) pads coated with organic solderability preservative (OSP). Since then a number of other Pb-free solder alloys have been introduced.This evalu
This application report presents a method for utilizing the on-chip pulse width modulated (PWM) signal generators on the TMS320F280x™ family of digital signal controllers as a digital-to-analog converter (DAC). The method involves analog low-pass filtering the PWM signal to remove high frequency components leaving only the low-frequency content. Theoretical and experimental results are presented
TI’s Impedance Track (IT)™ fuel gauge is designed for accurately reporting battery remaining capacity and run time. It is `necessary to configure and use the gauge correctly to achieve this. The bq27410 differs from the traditional IT-based gauges which require battery chemistry information and a learning cycle to achieve high accuracy. The bq27410 does not require battery chemistry selection o
On the Texas Instruments (TI) (tm) TMS320C54x the I/O port addresses are hard-coded in the opcodes for the PORTW (I/O port write) and PORTR (I/O port read) instructions. This document discusses how the tables of data can be transferred using sequential I/O port addresses.The fact that the I/O port addresses in the PORTR and PORTW instruction are hard-coded makes reading or writing a table of
This application report demonstrates the procedure used to program the TMS320VC5503/C5506/C5507/C5509/C5509A inter-integrated circuit (I2C) peripheral module. Basic operations of the I2C including reading and writing and the initialization of the I2C bus are covered. These operations are illustrated using the I2C routines provided in the chip support library (CSL). For more information see the
This application note provides information concerning the various revisions of the TI CDC2509/10 family of devices. In addition, it will assist designers with new and existing designs. Phase error inf
This report provides a summary of using the INA19xA-Q1 device when the common mode voltage is close to zero volts. In this low common-mode voltage region, the output voltage has a large error. The exa