 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
BQ2054PNE4 Datasheet(PDF) 1 Page - Texas Instruments |
|
|
||||||||||||||||||||||||||||||
BQ2054PNE4 Datasheet(HTML) 1 Page - Texas Instruments |
|
|
1 / 19 page  1 Features ➤ Safe charge of Lithium Ion bat- tery packs ➤ Voltage-regulated current- limited charging ➤ Fast charge terminated by se- lectable minimum current; safety backup termination on maximum time ➤ Charging continuously qualified by temperature and voltage lim- its ➤ Pulse-width modulation control ideal for high-efficiency switch- mode power conversion ➤ Direct LED control outputs dis- play charge status and fault con- ditions General Description The bq2054 Lithium Ion Fast- Charge IC is designed to optimize charging of lithium ion (Li-Ion) chemistry batteries. A flexible pulse-width modulation regulator allows the bq2054 to control voltage and current during charging. The regulator frequency is set by an ex- ternal capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum. The bq2054 measures battery tem- perature using an external thermis- tor for charge qualification. Charging begins when power is applied or on battery insertion. For safety, the bq2054 inhibits charging until the battery voltage and temperature are within con- figured limits. If the battery voltage is less than the low-voltage thresh- old, the bq2054 provides low-current conditioning of the battery. A constant current-charging phase re- plenishes up to 70% of the charge ca- pacity, and a voltage-regulated phase returns the battery to full. The charge cycle terminates when the charging current falls below a user-selectable current limit. For safety, charging ter- minates after maximum time and is suspended if the temperature is out- side the preconfigured limits. The bq2054 provides status indica- tions of all charger states and faults for accurate determination of the battery and charge system condi- tions. Lithium Ion Fast-Charge IC bq2054 TM Time-out programming input ICTL Inrush current control output BAT Battery voltage input VCOMP Voltage loop comp input ICOMP Current loop comp input ITERM Minimum current termination select input SNS Sense resistor input TS Temperature sense input 1 PN205401.eps 16-Pin Narrow DIP or SOIC 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 LED2/DSEL LED1 MOD VCC VSS LCOM LED3 TPWM TM ICTL BAT VCOMP ICOMP ITERM SNS TS TPWM Regulator timebase input LED3 Charge status output 3 LCOM Common LED output VSS System ground VCC 5.0V ±10% power MOD Modulation control output LED1 Charge status output 1 LED2/ Charge status output 2/ DSEL Display select input Pin Connections Pin Names 6/99 H |
Similar Part No. - BQ2054PNE4 |
|
Similar Description - BQ2054PNE4 |
|
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
