BQ24040DSQR
ActiveSTANDALONE 1-CELL 1-A LINEAR BATTERY CHARGER WITH 4.2-V VBAT AND TEMPERATURE SENSING 10-WSON 0 TO 125
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BQ24040DSQR
ActiveSTANDALONE 1-CELL 1-A LINEAR BATTERY CHARGER WITH 4.2-V VBAT AND TEMPERATURE SENSING 10-WSON 0 TO 125
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ24040DSQR | BQ24040 Series |
|---|---|---|
| Battery Chemistry | Lithium Ion/Polymer | Lithium Ion/Polymer |
| Battery Pack Voltage | 4.2 V | 4.2 V |
| Charge Current - Max [Max] | 1 A | 1 A |
| Current - Charging | Constant - Programmable | Constant - Programmable |
| Embedded | - | False |
| Fault Protection | Short Circuit, Over Temperature, Over Voltage | Short Circuit, Over Temperature, Over Voltage |
| Function | - | Battery Charger |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | 10-WFDFN Exposed Pad | 10-WFDFN Exposed Pad |
| Primary Attributes | - | Li-Ion (1 Cell) |
| Programmable Features | Current | Current |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 10-WSON (2x2) | 10-WSON (2x2) |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ24040 |
| Voltage - Supply (Max) [Max] | 28 V | 28 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
BQ24040 Series
Standalone 1-cell 1-A linear battery charger with 4.2-V VBAT and Temperature Sensing
| Part | Current - Charging | Number of Cells | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Supply (Max) [Max] | Programmable Features | Charge Current - Max [Max] | Battery Pack Voltage | Fault Protection | Supplier Device Package | Package / Case | Mounting Type | Battery Chemistry | Function | Supplied Contents | Primary Attributes | Type | Utilized IC / Part | Embedded |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24040DSQRThe BQ2404x series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.
The BQ2404x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.
The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.
The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed through an external resistor on the BQ24040 and BQ24045. The fast charge current value is also programmable through an external resistor.
The BQ2404x series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.
The BQ2404x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.
The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.
The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed through an external resistor on the BQ24040 and BQ24045. The fast charge current value is also programmable through an external resistor. | Constant - Programmable | 1 | 85 °C | -40 °C | 28 V | Current | 1 A | 4.2 V | Over Temperature, Over Voltage, Short Circuit | 10-WSON (2x2) | 10-WFDFN Exposed Pad | Surface Mount | Lithium Ion/Polymer | ||||||
Battery Charger | Board(s) | Li-Ion (1 Cell) | Power Management | BQ24040 |
Description
General part information
BQ24040 Series
The BQ2404x series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.
The BQ2404x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.
The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.
Documents
Technical documentation and resources