products and disclaimers thereto appears at the end of this data sheet. With the MODE pin low, the bq/1 defaults to USB charging at the charge rate. BQ datasheet, BQ circuit, BQ data sheet: TI – SINGLE-CHIP LI -ION CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC,alldatasheet. Click on a date/time to view the file as it appeared at that time. Date/Time, Dimensions, User, Comment. current, , 7 December , ( MB), Knight (talk.

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The charge level may be reduced to give the system priority on input current see DPPM. The output returns to its regulated value, and the battery returns to its programmed current level.

This feature works as follows. These status pins can be used to drive LEDs or communicate to the host datashet. The power pad should be tied to the VSS plane.

The DPPM control tries to datassheet a steady-state condition where the system gets its needed current and the battery is charged with the remaining current. Production processing does not necessarily include testing of all parameters.

This input is tied directly to the positive side of the battery pack. It’s a community-based project which helps to repair anything. In addition, this product uses package materials that do not contain bq24700, including bromine Br or antimony Sb above 0.


The package includes a QFN thermal pad to. This ensures proper hot plug power up with a no-load condition no system load or battery attached. The current remains high at current limit and the voltage drop is large for maximum power dissipation. At this time, the load has to be removed to recover.

For example, if the peak system load is 1. See the Timer Fault Recovery section for additional details. The bq only requires a small output capacitor for loop stability.

The dropout voltage increases proportionally datqsheet the increase in current. When the peak system load drops to 0. The charge current is reduced until there is no further drop on the output voltage.

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Too large a capacitance on this pin too much of a delay could allow too-high currents if the output was shorted to ground. This theory is datashee verified by performing a charge cycle on a discharged battery while monitoring the battery voltage and chargers power pad temperature. The output is regulated at 4. Note that OFF indicates the open-drain transistor is turned off.

This feature gives the system priority on input power, allowing the system to power up with a deeply discharged battery pack. Submit Documentation Feedback 17 bq www. This short-circuit disable feature was implemented mainly for power up when inserting a battery.


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This can be accomplished by floating the DPPM pin. The following summarizes this method: Submit Documentation Feedback 3 bq www. Note that charge current is dynamically adjusted during the thermal regulation or DPPM mode.

In datqsheet applications depending on the power. Power-Path Management The bq powers the system while independently charging the battery.

BQ Datasheet PDF – Texas Instruments

All voltage values are with respect to the network ground terminal unless otherwise noted. The IC design is focused on supplying continuous power to the system when available from the AC adapter or battery sources.

To recover from this state, there is a mA current source from the battery to the datxsheet.

The corresponding output turns ON low when exiting sleep mode input voltage above battery voltage. Therefore, it is customary to perform the steady-state thermal design using 3.