| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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88 pcs
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88 pcs | On Request | 1 | On Request | On Request | 08+PB | On Request | On Request |
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| Battery Chemistry | |
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| Programmable Features | |
| SVHC Present | |
| Supplier Device Package | |
| Tape & Reel | |
| Voltage |
The Texas Instruments BQ2954SNTRG4 is a Li-Ion charge-management IC that utilizes a flexible pulse-width modulation regulator to control voltage and current during the charging process. The regulator frequency can be set by an external capacitor, offering design flexibility. Its switch-mode design minimizes power dissipation.
For safety, the BQ2954SNTRG4 inhibits fast charging until the battery voltage and temperature are within configured limits. If the battery voltage is below a low-voltage threshold, it provides low-current conditioning. Charge qualification is managed using an external thermistor for battery temperature measurement. Charging initiates upon power application or battery insertion.
The device charges a battery in two phases: a constant-current phase that replenishes approximately 70% of the battery capacity, followed by a voltage-regulation phase to complete the charge. The BQ2954SNTRG4 provides status indications for all charger states and faults, enabling accurate determination of battery and charge-system conditions.
This IC is housed in a 16-SOIC package and is designed for surface mounting. It operates within a temperature range of -40°C to 85°C and supports a 5.5V input voltage with a 2A output current.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The BQ2954SNTRG4 operates with a supply voltage between 4.5V and 5.5V.
It comes in a 16-SOIC surface mount package.
The operating temperature range is -40°C to 85°C.
The output current is 2A.
The switching frequency is 100kHz.
It is designed for lithium-ion batteries.
The charge current is programmable.