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$5000TI BQ24172RGYT
Battery Management 1.6MHz Sync Sw-Mode LiIon/Poly Bat Chrgr
Marcas: TI
Parte do fabricante #: BQ24172RGYT
Ficha de dados: BQ24172RGYT Ficha de dados (PDF)
Pacote/Caso: QFN-24
Tipo de Produto: Battery Chargers
Status RoHS:
Condição de estoque: 250 peças, novo original
Warranty: 1 Year Ovaga Warranty - Find Out More
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BQ24172RGYT Descrição geral
The bq2417x 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 bq2417x closely monitors the battery pack temperature to allow charge only in a preset temperature window. The bq24170 charges one, two, or three cells (selected by CELL pin), and the bq24172 is adjustable for up to three series Li+ cells.
The device charges the battery in three phases: precondictioning, constant current, and constant voltage.
Charge is terminated when the current reaches 10% of the fast charge rate. A programmable charge timer offers a safety backup. The bq2417x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low-quiescent current sleep mode when the input voltage falls below the battery voltage.
The bq2417x features Dynamic Power Management (DPM) to reduce the charge current when the input power limit is reached to avoid overloading the adapter. A highly accurate current-sense amplifier enables precise measurement of input current from adapter to monitor overall system power.
The bq2417x 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 bq2417x charges a 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, if 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 bq2417x is available in a 24-pin, 5.5-mm × 3.5-mm thin VQFN package.
Características
- 1.6-MHz Synchronous Switched-Mode Charger
with 4-A Integrated N-MOSFETs - Up to 94% Efficiency
- 30-V Input Rating with Adjustable Overvoltage
Protection- 4.5-V to 17-V Input Operating Voltage Range
- Battery Charge Voltage
- bq24170: 1-, 2-, or 3-Cell with 4.2 V/Cell
- bq24172: Adjustable Charge Voltage
- High Integration
- Automatic Power Path Selector Between
Adapter and Battery - Dynamic Power Management
- Integrated 20-V Switching MOSFETs
- Integrated Bootstrap Diode
- Internal Digital Soft Start
- Automatic Power Path Selector Between
- Safety
- Thermal Regulation Loop Throttles Back
Current to Limit TJ = 120°C - Thermal Shutdown
- Battery Thermistor Sense Hot/Cold Charge
Suspend and Battery Detect - Adjustable Input Overvoltage Protection
- Cycle-by-Cycle Current Limit
- Thermal Regulation Loop Throttles Back
- Accuracy
- ±0.5% Charge Voltage Regulation
- ±4% Charge Current Regulation
- ±4% Input Current Regulation
- <15-µA Battery Current With Adapter Removed
- <1.5-mA Input Current With Adapter Present and
Charge Disabled
Especificações
| Parâmetro | Valor | Parâmetro | Valor |
|---|---|---|---|
| Number of series cells | 1, 2, 3 | Charge current (max) (A) | 4 |
| Vin (max) (V) | 17 | Cell chemistry | Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiMH |
| Battery charge voltage (min) (V) | 2.1 | Battery charge voltage (max) (V) | 15.5 |
| Absolute max Vin (max) (V) | 20 | Control topology | Switch-Mode Buck |
| Control interface | Standalone (RC-Settable) | Features | BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Power Path |
| Vin (min) (V) | 4.5 | Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
Envio
| Tipo de envio | Taxa de envio | Tempo de espera | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 dias |
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FedEx | $20.00-$40.00 (0.50 KG) | 2-5 dias |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 dias |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 dias |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 dias |
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CORREIO AÉREO REGISTADO | $20.00-$40.00 (0.50 KG) | 2-5 dias |
Tempo de processamento: A taxa de envio depende de diferentes zonas e países.
Pagamento
| Termos de pagamento | Taxa de mão | |
|---|---|---|
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Transferência bancária | cobrar taxa bancária de US$ 30,00. |
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PayPal | cobrar taxa de serviço de 4,0%. |
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Cartão de crédito | cobrar taxa de serviço de 3,5%. |
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Western Union | charge US.00 banking fee. |
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Grama de dinheiro | cobrar taxa bancária de US$ 0,00. |
Garantias
1.Os componentes eletrônicos que você compra incluem garantia de 365 dias, garantimos a qualidade do produto.
2. se alguns dos itens que você recebeu não forem de qualidade perfeita, providenciaremos seu reembolso ou substituição com responsabilidade. Mas os itens devem permanecer em sua condição original.
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Fora da etiqueta da embalagem ESD serão utilizadas as informações da nossa empresa: Número da peça, marca e quantidade.
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Depois que todas as mercadorias forem garantidas sem problemas na pós-embalagem, embalaremos com segurança e enviaremos por expresso global. Apresenta excelente resistência a perfurações e rasgos, além de boa integridade de vedação.
Part points
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The BQ24172RGYT chip is a highly integrated battery charge management IC that supports input currents up to 4 A. It is designed to efficiently and safely charge single-cell Li-Ion or Li-Polymer batteries. The chip includes built-in safety features such as thermal regulation, voltage and current protection, and charge termination, making it suitable for a wide range of portable electronic devices.
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Features
The BQ24172RGYT is a highly integrated single-cellLi-Ion battery charger with I2C interface. It features precision current and voltage regulation, dynamic power management, JEITA temperature profile support, and USB On-The-Go support. It also provides protections such as thermal regulation, overvoltage, overcurrent, and short-circuit protection. -
Pinout
The BQ24172RGYT is a power management IC with a pin count of 24. It is designed for use in portable devices and features an integrated battery charger and USB detection. Its functions include battery management and protection, power-path management, and thermal management. -
Manufacturer
Texas Instruments is the manufacturer of the BQ24172RGYT. Texas Instruments is a global semiconductor company that designs and produces analog and embedded processing products for a variety of applications, including industrial, automotive, communications, and consumer electronics. -
Application Field
The BQ24172RGYT is a charger IC that is specifically designed for single-cell lithium-ion and lithium-polymer batteries. It is commonly used in various portable electronic devices such as smartphones, tablets, digital cameras, and portable media players to provide efficient and reliable battery charging solutions. -
Package
The BQ24172RGYT chip comes in a 24-pin VQFN (Very Thin Quad Flat No Lead) package type. It has a form factor of a small and square-shaped chip. The size of the chip is typically around 4mm x 4mm.
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