BQ2054PN
ObsoleteSWITCH-MODE LI-ION BATTERY CHARGER IN PDIP OR SOIC PACKAGE
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BQ2054PN
ObsoleteSWITCH-MODE LI-ION BATTERY CHARGER IN PDIP OR SOIC PACKAGE
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ2054PN |
|---|---|
| Battery Chemistry | Lithium Ion |
| Current - Charging | Constant |
| Fault Protection | Over Current, Over Voltage |
| Mounting Type | Through Hole |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | -20 °C |
| Package / Case | 0.3 in |
| Package / Case | 16-DIP |
| Package / Case | 7.62 mm |
| Supplier Device Package | 16-PDIP |
| Voltage - Supply (Max) | 5.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Texas Instruments | TUBE | 1 | $ 13.90 | |
| 100 | $ 12.14 | |||
| 250 | $ 9.36 | |||
| 1000 | $ 8.37 | |||
Description
General part information
BQ2054 Series
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 external capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum.
The bq2054 measures battery temperature using an external thermistor 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 configured limits. If the battery voltage is less than the low-voltage threshold, the bq2054 provides low-current conditioning of the battery.
Documents
Technical documentation and resources
