BQ24171RGYT
ActiveSTANDALONE 1-3 CELL 4A SYNCHRONOUS BUCK BATTERY CHARGER WITH JEITA COMPLIANCE AND POWER PATH
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BQ24171RGYT
ActiveSTANDALONE 1-3 CELL 4A SYNCHRONOUS BUCK BATTERY CHARGER WITH JEITA COMPLIANCE AND POWER PATH
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ24171RGYT | BQ24171 Series |
|---|---|---|
| Battery Chemistry | Lithium Ion/Polymer | Lithium Ion/Polymer |
| Battery Pack Voltage | 2.1 V | 2.1 V |
| Charge Current - Max [Max] | 4 A | 4 A |
| Current - Charging | Constant - Programmable | Constant - Programmable |
| Fault Protection | Over Current, Over Voltage, Over Temperature | Over Current, Over Voltage, Over Temperature |
| Function | - | Battery Charger |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells [Max] | 3 | 3 |
| Number of Cells [Min] | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | 24-VFQFN Exposed Pad | 24-VFQFN Exposed Pad |
| Primary Attributes | - | 3 |
| Primary Attributes | - | Li-Ion / Li-Pol |
| Primary Attributes | - | 1 |
| Programmable Features | Current | Current |
| Secondary Attributes | - | On-Board LEDs |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 24-VQFN (5.5x3.5) | 24-VQFN (5.5x3.5) |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ24171 |
| Voltage - Supply (Max) [Max] | 17 V | 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 | $ 5.56 | |
| 10 | $ 4.99 | |||
| 25 | $ 4.72 | |||
| 100 | $ 4.09 | |||
| Digi-Reel® | 1 | $ 5.56 | ||
| 10 | $ 4.99 | |||
| 25 | $ 4.72 | |||
| 100 | $ 4.09 | |||
| Tape & Reel (TR) | 250 | $ 3.88 | ||
| 500 | $ 3.48 | |||
| 1250 | $ 2.94 | |||
| 2500 | $ 2.79 | |||
| Texas Instruments | SMALL T&R | 1 | $ 4.19 | |
| 100 | $ 3.67 | |||
| 250 | $ 2.58 | |||
| 1000 | $ 2.08 | |||
BQ24171 Series
Standalone 1-3 cell 4A synchronous Buck battery charger with JEITA compliance and Power Path
| Part | Charge Current - Max [Max] | Number of Cells [Min] | Number of Cells [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Programmable Features | Supplier Device Package | Current - Charging | Package / Case | Voltage - Supply (Max) [Max] | Battery Chemistry | Mounting Type | Battery Pack Voltage | Fault Protection | Secondary Attributes | Utilized IC / Part | Primary Attributes [Max] [custom] | Primary Attributes | Primary Attributes [Min] [custom] | Supplied Contents | Type | Function |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24171RGYT | 4 A | 1 | 3 | 85 °C | -40 °C | Current | 24-VQFN (5.5x3.5) | Constant - Programmable | 24-VFQFN Exposed Pad | 17 V | Lithium Ion/Polymer | Surface Mount | 2.1 V | Over Current, Over Temperature, Over Voltage | ||||||||
Texas Instruments BQ24171RGYR | 4 A | 1 | 3 | 85 °C | -40 °C | Current | 24-VQFN (5.5x3.5) | Constant - Programmable | 24-VFQFN Exposed Pad | 17 V | Lithium Ion/Polymer | Surface Mount | 2.1 V | Over Current, Over Temperature, Over Voltage | ||||||||
Texas Instruments BQ24171EVM-706-15V | On-Board LEDs | BQ24171 | 3 | Li-Ion / Li-Pol | 1 | Board(s) | Power Management | Battery Charger |
Description
General part information
BQ24171 Series
The bq24171 device is 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 bq24171 closely monitors the battery pack temperature and allows charge only in a JEITA profile-compatible window with a lower charge rate at a low temperature and a lower charge voltage at a high temperature. The bq24171 device charges the battery in three phases: preconditioning, constant current, and constant voltage. The bq24171 charges up to 3-series cells with an adjustable cell voltage.
The bq24171 charges the battery in three phases: preconditioning, constant current, and constant voltage. The device is adjustable for up to three series Li+ cells.
Charge is terminated when the current reaches 10% of the fast charge rate. A programmable charge timer offers a safety backup. The bq24171 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.
Documents
Technical documentation and resources