| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
7,718 pcs
|
7718 pcs | On Request | 1 | On Request | On Request | 02+001 | On Request | On Request | |
|
17 pcs
|
17 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Manufacturer Name | |
| Battery Chemistry | |
| Control Interface | |
| Current | |
| Features | |
| Mounting Type | |
| Operating Temperature | |
| Programmable Features | |
| Supplier Device Package | |
| Voltage |
The BQ2954SN from Texas Instruments is a switch-mode Li-ion charge controller IC designed for safe and efficient charging of lithium-ion and Li-polymer battery packs. This device supports 1 to 4 series cells and features a maximum charge current of 2A. It operates with an input voltage range of 4.5V to 5.5V, with an absolute maximum rating of 7V.
The BQ2954SN utilizes pulse-width modulation control for voltage and current regulation, minimizing power dissipation. For safety, it includes features like battery temperature monitoring via a thermistor (JEITA profile) and precharge qualification to detect shorted or damaged cells. Fast charging is inhibited until battery voltage and temperature are within configured limits. If the battery voltage is below a low-voltage threshold, the IC provides low-current conditioning.
This charge controller is housed in a 16-SOIC package and is designed for surface mount applications. It offers direct LED control outputs to display charge status and fault conditions. The charging process occurs in two phases: a constant-current phase followed by a voltage-regulation phase to complete the charge.
Key electrical specifications include a 5.5V voltage rating and a maximum charge current of 2A. The operating temperature range is specified as 0°C to 70°C from the manufacturer, while the existing database lists -40°C to 85°C (TA). The control interface is standalone and RC-settable.
| Qty | Low | High |
|---|---|---|
| 1+ | $3.29 | $3.29 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum charge current for the BQ2954SN is 2A.
The BQ2954SN supports Li-Ion and Li-Polymer battery chemistries.
The input voltage range for the BQ2954SN is 4.5V to 5.5V.
The BQ2954SN is available in a 16-SOIC package.
The operating temperature range is 0°C to 70°C according to the manufacturer, and -40°C to 85°C (TA) from the database.
Yes, the BQ2954SN features BAT temp thermistor monitoring using the JEITA profile.