Electronic Components Datasheet Search |
|
BQ24271RGET Datasheet(PDF) 2 Page - Texas Instruments |
|
|
BQ24271RGET Datasheet(HTML) 2 Page - Texas Instruments |
2 / 38 page bq24270 bq24271 SLUSB10 – JUNE 2012 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. DESCRIPTION (CONTINUED) The power path management feature allows the bq24270 and bq24271 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This allows for proper charge termination and timer operation. The system voltage is regulated to the battery voltage but will not drop below 3.5 V. This minimum system voltage support enables the system to run with a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or no battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This enables the use of a smaller adapter. The charge parameters are programmable using the I2C interface The battery is charged in three phases: precharge, fast charge constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, a voltage-based battery pack thermistor monitoring input (TS) is included that monitors battery temperature for safe charging The TS function for bq24270 and bq24271 are JEITA compatible. ORDERING INFORMATION PART Safety and WD VBATSHRT or USB OVP CE bit Default USB Detection NTC Monitoring Package NUMBER(1) (2) Timers IBATSHRT 0 (Charge 3 V bq24270YFFR 6.5 V D+, D- Yes JEITA WCSP Enabled) 50 mA 0 (Charge 3 V bq24270YFFT 6.5 V D+, D- Yes JEITA WCSP Enabled) 50 mA 0 (Charge 3 V bq24270RGER 6.5 V D+, D- Yes JEITA RGE Enabled) 50 mA 0 (Charge 3 V bq24270RGET 6.5 V D+, D- Yes JEITA RGE Enabled) 50 mA 0 (Charge 3 V bq24271YFFR 6.5 V PSEL Yes JEITA WCSP Enabled) 50 mA 0 (Charge 3 V bq24271YFFT 6.5 V PSEL Yes JEITA WCSP Enabled) 50 mA 0 (Charge 3 V bq24271RGER 6.5 V PSEL Yes JEITA RGE Enabled) 50 mA 0 (Charge 3 V bq24271RGET 6.5 V PSEL Yes JEITA RGE Enabled) 50 mA (1) The YFF and RGE packages are available in the following options: R - taped and reeled in quantities of 3,000 devices per reel. T - taped and reeled in quantities of 250 devices per reel (2) This product is RoHS compatible, including a lead concentration that does not exceed 0.1% of total product weight, and is suitable for use in specified lead-free soldering processes. In addition, this product uses package materials that do not contain halogens, including bromine (Br) or antimony (Sb) above 0.1% of total product weight 2 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Link(s): bq24270 bq24271 |
Similar Part No. - BQ24271RGET |
|
Similar Description - BQ24271RGET |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |