BQ24133 Series
Standalone 1-3 cell 2.5A synchronous Buck battery charger with external Power Path
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Standalone 1-3 cell 2.5A synchronous Buck battery charger with external Power Path
| Part | Supplier Device Package | Package / Case | Mounting Type | Fault Protection | Battery Pack Voltage | Charge Current - Max [Max] | Voltage - Supply (Max) [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Number of Cells [Min] | Number of Cells [Max] | Current - Charging | Programmable Features | Battery Chemistry | Primary Attributes | Contents | Type | Function | Embedded | Utilized IC / Part | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24133RGYR | 24-VQFN (5.5x3.5) | 24-VFQFN Exposed Pad | Surface Mount | Over Current, Over Temperature, Over Voltage | 4.2 V | 2.5 A | 17 V | 85 °C | -40 °C | 1 | 3 | Constant - Programmable | Current | Lithium Ion/Polymer | |||||||
Texas Instruments BQ24133EVM-715-15V | Li-Ion (1 Cell) | Board(s) | Power Management | Battery Charger | BQ24133 | Board(s) | |||||||||||||||
Texas Instruments BQ24133EVM-715-5V | Li-Ion (1 Cell) | Power Management | Battery Charger | BQ24133 | Board(s) | ||||||||||||||||
Texas Instruments BQ24133RGYT | 24-VQFN (5.5x3.5) | 24-VFQFN Exposed Pad | Surface Mount | Over Current, Over Temperature, Over Voltage | 4.2 V | 2.5 A | 17 V | 85 °C | -40 °C | 1 | 3 | Constant - Programmable | Current | Lithium Ion/Polymer |
Key Features
• 1.6-MHz Synchronous switched-mode charger with 2.5-A integrated N-MOSFETsUp to 92% efficiency30-V Input rating with adjustable overvoltage protection4.5-V to 17-V Input operating voltageBattery charge voltage1-Cell, 2-cell, or 3-cell with 4.2 V/cellHigh integrationAutomatic Power Path selector between adapter and batteryDynamic power managementIntegrated 20-V switching MOSFETsIntegrated bootstrap diodeInternal digital soft startSafetyThermal regulation loop throttles back current to limit TJ= 120°CThermal shutdownBattery thermistor sense hot/cold charge suspend and battery detectAdjustable input overvoltage protectionCycle-by-cycle current limitAccuracy±0.5% Charge voltage regulation±5% Charge current regulation±6% Input current regulation<15-µA Battery current with adapter removed<1.5-mA Input current with adapter present and charge disabled package1.6-MHz Synchronous switched-mode charger with 2.5-A integrated N-MOSFETsUp to 92% efficiency30-V Input rating with adjustable overvoltage protection4.5-V to 17-V Input operating voltageBattery charge voltage1-Cell, 2-cell, or 3-cell with 4.2 V/cellHigh integrationAutomatic Power Path selector between adapter and batteryDynamic power managementIntegrated 20-V switching MOSFETsIntegrated bootstrap diodeInternal digital soft startSafetyThermal regulation loop throttles back current to limit TJ= 120°CThermal shutdownBattery thermistor sense hot/cold charge suspend and battery detectAdjustable input overvoltage protectionCycle-by-cycle current limitAccuracy±0.5% Charge voltage regulation±5% Charge current regulation±6% Input current regulation<15-µA Battery current with adapter removed<1.5-mA Input current with adapter present and charge disabled package
Description
AI
The BQ24133 device is a highly integrated stand-alone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current, charge current, and voltage. The BQ24133 closely monitors the battery pack temperature to allow charge only in a preset temperature window. The BQ24133 charges one, two, or three cells (selected by CELL pin) at a fixed 4.2 V/cell.
The BQ24133 charges the battery in three phases: preconditioning, constant current, and constant voltage.
The BQ24133 provides power path selector gate driver ACDRV/CMSRC on input NMOS pair ACFET (Q1) and RBFET (Q2), and BATDRV on a battery PMOS device (Q3). When the qualified adapter is present, the system is directly connected to the adapter. Otherwise, the system is connected to the battery. In addition, the power path prevents battery from boosting back to the input.
The BQ24133 charges the battery from a DC source as high as 17 V, including a car battery. The input overvoltage limit is adjustable through the OVPSET pin. The AVCC, ACP, and ACN pins have a 30-V rating. When a high-voltage DC source is inserted, Q1 and Q2 remain off to avoid high-voltage damage to the system.
For 1-cell applications where the battery is not removable, the system can be directly connected to the battery to simplify the power path design and reduce the cost. With this configuration, the battery can automatically supplement the system load if the adapter is overloaded.
The BQ24133 is available in a 24-pin, 5.5-mm × 3.5-mm thin VQFN package.
The BQ24133 device is a highly integrated stand-alone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current, charge current, and voltage. The BQ24133 closely monitors the battery pack temperature to allow charge only in a preset temperature window. The BQ24133 charges one, two, or three cells (selected by CELL pin) at a fixed 4.2 V/cell.
The BQ24133 charges the battery in three phases: preconditioning, constant current, and constant voltage.
The BQ24133 provides power path selector gate driver ACDRV/CMSRC on input NMOS pair ACFET (Q1) and RBFET (Q2), and BATDRV on a battery PMOS device (Q3). When the qualified adapter is present, the system is directly connected to the adapter. Otherwise, the system is connected to the battery. In addition, the power path prevents battery from boosting back to the input.
The BQ24133 charges the battery from a DC source as high as 17 V, including a car battery. The input overvoltage limit is adjustable through the OVPSET pin. The AVCC, ACP, and ACN pins have a 30-V rating. When a high-voltage DC source is inserted, Q1 and Q2 remain off to avoid high-voltage damage to the system.
For 1-cell applications where the battery is not removable, the system can be directly connected to the battery to simplify the power path design and reduce the cost. With this configuration, the battery can automatically supplement the system load if the adapter is overloaded.
The BQ24133 is available in a 24-pin, 5.5-mm × 3.5-mm thin VQFN package.