bq2054
Lithium Ion Fast-Charge IC
Features General Description вћ¤ Safe charge of Lithium Ion battery packs The bq2054 Lithium Ion FastCharge 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 external capacitor for design flexibility.
The switch-mode design keeps
power dissipation to a minimum. вћ¤ Voltage-regulated currentlimited charging
вћ¤ Fast charge terminated by selectable minimum current; safety
backup termination on maximum
time
вћ¤ Charging continuously qualified
by temperature and voltage limits
вћ¤ Pulse-width modulation control
ideal for high-efficiency switchmode power conversion The bq2054 measures battery temperature using an external thermistor for charge qualification. Charging
begins when power is applied or on
battery insertion. вћ¤ Direct LED control outputs display charge status and fault conditions For safety, the bq2054 inhibits
charging until the battery voltage
and temperature are within con-Pin Connections Pin Names TM 1 16 LED2/DSEL ICTL 2 15 LED1 BAT 3 14 MOD VCOMP 4 13 VCC ICOMP 5 12 VSS ITERM 6 11 LCOM SNS 7 10 LED3 TS 8 9 TPWM 16-Pin Narrow
DIP or SOIC figured limits. If the battery voltage …
Datasheet Texas Instruments BQ2054SNTR
| Manufacturer | Texas Instruments |
| Series | BQ2054 |
| Part Number | BQ2054SNTR |
Switch-mode Li-Ion Battery Charger in PDIP or SOIC Package 16-SOIC
Datasheets
Datasheet PDF, 350 Kb, File published: Sep 5, 1999
Lithium Ion Fast-Charge IC datasheet
Docket
Prices
Family: BQ2054
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 16 | 16 | 16 |
| Package Type | D | D | D |
| Industry STD Term | SOIC | SOIC | SOIC |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 2500 | 2500 | 2500 |
| Carrier | LARGE T&R | LARGE T&R | LARGE T&R |
| Device Marking | G | 2054 | -G |
| Width (mm) | 3.91 | 3.91 | 3.91 |
| Length (mm) | 9.9 | 9.9 | 9.9 |
| Thickness (mm) | 1.58 | 1.58 | 1.58 |
| Pitch (mm) | 1.27 | 1.27 | 1.27 |
| Max Height (mm) | 1.75 | 1.75 | 1.75 |
| Mechanical Data | Download | Download | Download |
Parametrics
| Absolute Vin (safety rating)(Max)( | 7 V |
| Battery Charge Voltage(Max) | 20 V |
| Cell Chemistry | Li-Ion/Li-Polymer |
| Charge Current(Max) | 2 A |
| Control Interface | Standalone (RC-Settable) |
| Control Topology | Switch-Mode Buck |
| Number of Series Cells | 2,3,4 |
| Operating Vin(Max) | 5.5 V |
| Operating Vin(Min) | 4.5 V |
| Package Group | SOIC |
| Package Size: mm2:W x L | See datasheet (PDIP) PKG |
| Special Features | Temp Monitoring (Thermistor Pin) |
| USB Feature | N/A |
Eco Plan
| RoHS | Compliant |
Model Line
Series: BQ2054 (4)
- BQ2054PN BQ2054PNE4 BQ2054SN BQ2054SNTR
Manufacturer's Classification
- Semiconductors > Power Management > Battery Management Products > Battery Charger IC
Inside a huge PCB factory: https://www.youtube.com/watch?v=_XCznQFV-Mw
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