BQ24140 Series
1.5-A Dual input Switchmode charger with USB-OTG Support
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
1.5-A Dual input Switchmode charger with USB-OTG Support
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Current - Charging | Charge Current - Max [Max] | Package / Case | Battery Pack Voltage | Number of Cells | Mounting Type | Fault Protection | Supplier Device Package | Battery Chemistry | Interface | Programmable Features | Voltage - Supply (Max) [Max] | Contents | Embedded | Type | Function | Secondary Attributes | Supplied Contents | Primary Attributes | Utilized IC / Part |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24140YFFT | -30 °C | 85 C | Constant - Programmable | 1.5 A | 30-UFBGA, DSBGA | 4.44 V | 1 | Surface Mount | Over Temperature, Over Voltage | 30-DSBGA | Lithium Ion/Polymer | I2C | Current, Timer | 9 V | ||||||||
Texas Instruments BQ24140YFFR | -30 °C | 85 C | Constant - Programmable | 1.5 A | 30-UFBGA, DSBGA | 4.44 V | 1 | Surface Mount | Over Temperature, Over Voltage | 30-DSBGA | Lithium Ion/Polymer | I2C | Current, Timer | 9 V | ||||||||
Texas Instruments BQ24140EVM-003 | Board(s) | Power Management | Battery Charger | On-Board LEDs | Board(s) | Li-Ion / Li-Pol (1 Cell) | BQ24140 |
Key Features
• High-Efficiency Mini-USB/AC Battery Charger forSingle-Cell Li-Ion and Li-Polymer Battery PacksCharge Battery and Provide USB-OTG Support at the Same TimeHigh-Accuracy Voltage and Current RegulationInput Current Regulation Accuracy: ±5% (100mA, 500mA)Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0-125°C)Charge Current Regulation Accuracy: ±5%Boost Mode Operation for USB OTG:Input Voltage Range (from Battery): 2.3V to 4.5VOutput for VBUS: 5.05V/500 mAInput Voltage Based Dynamic Power Management ProvidesProtection Against Current Limited AdaptersBad Adaptor Detection and RejectionSafety Limit Register for Added Security by LimitingMaximum Charge Voltage and Maximum Charge Current20-V Absolute Maximum Input Voltage Rating9.0-V Maximum Operating Input VoltageCharge Faster than Linear ChargersBuilt-in Input Current Sensing and LimitingIntegrated Power FETs for up to 1.5-A Charge RateProgrammable Charge Parameters Through I2C Interface(up to 3.4 Mbps):Input CurrentFast-Charge/Termination CurrentCharge Voltage (3.5-4.44V)Safety Timer with Reset ControlSafety Timer with Reset ControlTermination EnableSynchronous Fixed-Frequency PWM Controller Operating at 3 MHzWith 0% to 99.5% Duty CycleAutomatic High Impedance Mode for Low Power ConsumptionRobust ProtectionReverse Leakage Protection Prevents Battery DrainageThermal Regulation and ProtectionInput/Output Over Voltage ProtectionStatus Output for Charging and FaultsUSB Friendly Boot-Up Sequence2.35 × 2.65 mm 30-pin WCSP PackageHigh-Efficiency Mini-USB/AC Battery Charger forSingle-Cell Li-Ion and Li-Polymer Battery PacksCharge Battery and Provide USB-OTG Support at the Same TimeHigh-Accuracy Voltage and Current RegulationInput Current Regulation Accuracy: ±5% (100mA, 500mA)Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0-125°C)Charge Current Regulation Accuracy: ±5%Boost Mode Operation for USB OTG:Input Voltage Range (from Battery): 2.3V to 4.5VOutput for VBUS: 5.05V/500 mAInput Voltage Based Dynamic Power Management ProvidesProtection Against Current Limited AdaptersBad Adaptor Detection and RejectionSafety Limit Register for Added Security by LimitingMaximum Charge Voltage and Maximum Charge Current20-V Absolute Maximum Input Voltage Rating9.0-V Maximum Operating Input VoltageCharge Faster than Linear ChargersBuilt-in Input Current Sensing and LimitingIntegrated Power FETs for up to 1.5-A Charge RateProgrammable Charge Parameters Through I2C Interface(up to 3.4 Mbps):Input CurrentFast-Charge/Termination CurrentCharge Voltage (3.5-4.44V)Safety Timer with Reset ControlSafety Timer with Reset ControlTermination EnableSynchronous Fixed-Frequency PWM Controller Operating at 3 MHzWith 0% to 99.5% Duty CycleAutomatic High Impedance Mode for Low Power ConsumptionRobust ProtectionReverse Leakage Protection Prevents Battery DrainageThermal Regulation and ProtectionInput/Output Over Voltage ProtectionStatus Output for Charging and FaultsUSB Friendly Boot-Up Sequence2.35 × 2.65 mm 30-pin WCSP Package
Description
AI
The bq24140 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The IC integrates two synchronous PWM chargers, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.
The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, the IC automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status can be reported to the host using the I2C interface. During the charging process, the IC monitors its junction temperature (TJ) and reduces the charge current once TJincreases to 125°C typical. To support USB OTG device, the IC can provide VBUS (5.05V typical) by boosting the battery voltage. The IC is available in 30-pin WCSP package.
The bq24140 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The IC integrates two synchronous PWM chargers, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.
The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, the IC automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status can be reported to the host using the I2C interface. During the charging process, the IC monitors its junction temperature (TJ) and reduces the charge current once TJincreases to 125°C typical. To support USB OTG device, the IC can provide VBUS (5.05V typical) by boosting the battery voltage. The IC is available in 30-pin WCSP package.