Datasheet Texas Instruments BQ2054SNTR 
Switch-mode Li-Ion Battery Charger in PDIP or SOIC Package 16-SOIC Datasheets- Download » Datasheet PDF, 350 Kb, File published: Sep 5, 1999
Lithium Ion Fast-Charge IC datasheet
Docket ↓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 ...
PricesFamily: BQ2054 Status| Lifecycle Status | Active (Recommended for new designs) |
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| Manufacture's Sample Availability | No |
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Packaging| Pin | 16 | 16 | 16 |
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| Package Type | D | D | D |
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| Industry STD Term | SOIC | SOIC | SOIC |
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| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G |
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| Package QTY | 2500 | 2500 | 2500 |
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| Carrier | LARGE T&R | LARGE T&R | LARGE T&R |
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| Device Marking | G | 2054 | -G |
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| Width (mm) | 3.91 | 3.91 | 3.91 |
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| Length (mm) | 9.9 | 9.9 | 9.9 |
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| Thickness (mm) | 1.58 | 1.58 | 1.58 |
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| Pitch (mm) | 1.27 | 1.27 | 1.27 |
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| Max Height (mm) | 1.75 | 1.75 | 1.75 |
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| Mechanical Data | Download » | Download » | Download » |
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Parametrics| Absolute Vin (safety rating)(Max)( | 7 V |
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| Battery Charge Voltage(Max) | 20 V |
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| Cell Chemistry | Li-Ion/Li-Polymer |
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| Charge Current(Max) | 2 A |
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| Control Interface | Standalone (RC-Settable) |
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| Control Topology | Switch-Mode Buck |
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| Number of Series Cells | 2,3,4 |
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| Operating Vin(Max) | 5.5 V |
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| Operating Vin(Min) | 4.5 V |
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| Package Group | SOIC |
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| Package Size: mm2:W x L | See datasheet (PDIP) PKG |
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| Special Features | Temp Monitoring (Thermistor Pin) |
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| USB Feature | N/A |
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Eco PlanMoldel LineSeries: BQ2054 (4) Manufacturer's Classification- Semiconductors > Power Management > Battery Management Products > Battery Charger IC
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