BQ25303JRTER
ActiveSTANDALONE 1-CELL 17-V, 3.0-A BATTERY CHARGER WITH JEITA BATTERY TEMPERATURE MONITORING
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BQ25303JRTER
ActiveSTANDALONE 1-CELL 17-V, 3.0-A BATTERY CHARGER WITH JEITA BATTERY TEMPERATURE MONITORING
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ25303JRTER |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Battery Pack Voltage | 4.2 V, 4.4 V, 4.1 V, 4.35 V |
| Charge Current - Max [Max] | 3 A |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Current, Over Voltage, Short Circuit, Over Temperature |
| Interface | USB |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-WFQFN Exposed Pad |
| Programmable Features | Voltage, Current |
| Supplier Device Package | 16-WQFN (3x3) |
| Voltage - Supply (Max) [Max] | 17 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.47 | |
| 10 | $ 1.32 | |||
| 25 | $ 1.24 | |||
| 100 | $ 1.06 | |||
| 250 | $ 0.99 | |||
| 500 | $ 0.88 | |||
| Digi-Reel® | 1 | $ 1.47 | ||
| 10 | $ 1.32 | |||
| 25 | $ 1.24 | |||
| 100 | $ 1.06 | |||
| 250 | $ 0.99 | |||
| 500 | $ 0.88 | |||
| Tape & Reel (TR) | 3000 | $ 0.88 | ||
| Texas Instruments | LARGE T&R | 1 | $ 1.34 | |
| 100 | $ 1.11 | |||
| 250 | $ 0.80 | |||
| 1000 | $ 0.60 | |||
BQ25303J Series
Standalone 1-cell 17-V, 3.0-A battery charger with JEITA battery temperature monitoring
| Part | Programmable Features | Current - Charging | Mounting Type | Battery Chemistry | Supplier Device Package | Package / Case | Battery Pack Voltage | Operating Temperature [Max] | Operating Temperature [Min] | Number of Cells | Interface | Fault Protection | Charge Current - Max [Max] | Voltage - Supply (Max) [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25303JRTER | Current, Voltage | Constant - Programmable | Surface Mount | Lithium Ion/Polymer | 16-WQFN (3x3) | 16-WFQFN Exposed Pad | 4.1 V, 4.2 V, 4.35 V, 4.4 V | 85 °C | -40 °C | 1 | USB | Over Current, Over Temperature, Over Voltage, Short Circuit | 3 A | 17 V |
Description
General part information
BQ25303J Series
The BQ25303J is a highly-integrated standalone switch-mode battery charger for 1-cell Li-ion and Li-polymer batteries. The BQ25303J supports 4.1-V to 17-V input voltage and 3-A fast charge current. The integrated current sensing topology of the device enables high charge efficiency and low BOM cost. The best-in-class 200-nA low quiescent current of the device conserves battery energy and maximizes the shelf time for portable devices. The BQ25303J is available in a 3x3 WQFN package for easy 2-layer layout and space limited applications.
The BQ25303Jsupports 4.1-V to 17-V input to charge single cell batteries. The BQ25303Jprovides up to 3-A continuous charge current to a single cell 1S battery The device features fast charging for portable devices. Its input voltage regulation delivers maximum charging power to the battery from input source. The solution is highly integrated with an input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), and low-side switching FET (LSFET, Q3).
The BQ25303J features lossless integrated current sensing to reduce power loss and BOM cost with minimized component count. It also integrates a bootstrap diode for the high-side gate drive and battery temperature monitor to simplify system design. The device initiates and completes a charging cycle without host control. The BQ25303J charge voltage and charge current are set by external resistors. The BQ25303Jdetects the charge voltage setting at startup and charges the battery in four phases: battery short, pre-conditioning, constant current, and constant voltage. At the end of the charging cycle, the charger automatically terminates if the charge current is below the termination current threshold and the battery voltage is above the recharge threshold. When the battery voltage falls below the recharge threshold, the charger will automatically start another charging cycle. The charger provides various safety features for battery charging and system operations, including battery temperature monitoring based on negative temperature coefficient (NTC) thermistor, charge safety timer, input over-voltage and over-current protections, as well as battery over-voltage protection. Pin open and short protection is also built in to protect against the charge current setting pin ICHG accidently open or short to GND. The thermal regulation regulates charge current to limit die temperature during high power operation or high ambient temperature conditions.
Documents
Technical documentation and resources