| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Number of Pins | 16 Pin |
| Supply Voltage (DC) | 5.50V (max) |
| Case/Package | DIP-16 |
| Input Voltage (DC) | 5.50 V |
| Output Current | 2 A |
| Switching Frequency | 100 kHz |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | -20 ℃ |
| Supply Voltage | 4.5V ~ 5.5V |
| Input Voltage | 5.5 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 19.3 mm |
| Size-Width | 6.35 mm |
| Size-Height | 4.57 mm |
| Operating Temperature | -40℃ ~ 85℃ |
The bq2954 Li-Ion Charge-Management IC uses a flexible pulse-width modulation regulator to control voltage and current during charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design minimizes power dissipation.
●For safety, the bq2954 inhibits fast charging until the battery voltage and temperature are within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2954 provides low-current conditioning of the battery.
●For charge qualification, the bq2954 uses an external thermistor to measure battery temperature. Charging begins when power is applied or the battery is inserted
●The bq2954 charges a battery in two phases. First a constant-current phase replenishes approximately 70% of battery capacity. Then a voltage- regulation phase completes the battery charge.
●The bq2954 provides status indications of all charger states and faults for accurate determination of the battery and charge-system conditions. View datasheet View product folder
TI
The bq2954 Li-Ion Charge-Management IC uses a flexible pulse-width modulation regulator to control voltage and curren...
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