BQ24151AYFFT
ActiveI2C 1CELL 1.25A BUCK BATTERY CHARGER WITH OTG AND 2KV HBM & AUTOMATIC HIGH IMPEDANCE MODE
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BQ24151AYFFT
ActiveI2C 1CELL 1.25A BUCK BATTERY CHARGER WITH OTG AND 2KV HBM & AUTOMATIC HIGH IMPEDANCE MODE
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ24151AYFFT | BQ24151 Series |
|---|---|---|
| Battery Chemistry | Lithium Ion/Polymer | Lithium Ion/Polymer |
| Battery Pack Voltage | 4.44 V | 4.44 V |
| Charge Current - Max [Max] | 1.25 A | 1.25 A |
| Current - Charging | Constant - Programmable | Constant, Constant - Programmable |
| Embedded | - | False |
| Fault Protection | Over Voltage, Over Temperature | Over Voltage, Over Temperature |
| Function | - | Battery Charger |
| Interface | I2C | I2C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | 20-UFBGA, DSBGA | 20-UFBGA, DSBGA |
| Primary Attributes | - | Li-Ion / Li-Pol (1 Cell) |
| Programmable Features | Current, Timer, Voltage | Current, Timer, Voltage |
| Secondary Attributes | - | I2C Interface(s) |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 20-DSBGA | 20-DSBGA |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ24151A |
| Voltage - Supply (Max) [Max] | 6 V | 6 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 | $ 7.31 | |
| Digi-Reel® | 1 | $ 7.31 | ||
| Tape & Reel (TR) | 250 | $ 4.55 | ||
| 500 | $ 4.42 | |||
| 750 | $ 4.35 | |||
| 1250 | $ 4.28 | |||
| 1750 | $ 4.24 | |||
| Texas Instruments | SMALL T&R | 1 | $ 5.74 | |
| 100 | $ 4.68 | |||
| 250 | $ 3.68 | |||
| 1000 | $ 3.12 | |||
BQ24151 Series
I2C 1cell 1.25A Buck battery charger with OTG and Automatic High Impedance Mode
| Part | Charge Current - Max [Max] | Number of Cells | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case | Interface | Current - Charging | Battery Chemistry | Programmable Features | Fault Protection | Supplier Device Package | Mounting Type | Voltage - Supply (Max) [Max] | Battery Pack Voltage | Secondary Attributes | Supplied Contents | Function | Primary Attributes | Utilized IC / Part | Embedded | Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24151YFFR | 1.25 A | 1 | 85 °C | -40 °C | 20-UFBGA, DSBGA | I2C | Constant | Lithium Ion/Polymer | Current, Timer, Voltage | Over Temperature, Over Voltage | 20-DSBGA | Surface Mount | 6 V | 4.44 V | |||||||
Texas Instruments BQ24151AYFFR | 1.25 A | 1 | 85 °C | -40 °C | 20-UFBGA, DSBGA | I2C | Constant - Programmable | Lithium Ion/Polymer | Current, Timer, Voltage | Over Temperature, Over Voltage | 20-DSBGA | Surface Mount | 6 V | 4.44 V | |||||||
Texas Instruments BQ24151AEVM | I2C Interface(s) | Board(s) | Battery Charger | Li-Ion / Li-Pol (1 Cell) | BQ24151A | Power Management | |||||||||||||||
Texas Instruments BQ24151AYFFT | 1.25 A | 1 | 85 °C | -40 °C | 20-UFBGA, DSBGA | I2C | Constant - Programmable | Lithium Ion/Polymer | Current, Timer, Voltage | Over Temperature, Over Voltage | 20-DSBGA | Surface Mount | 6 V | 4.44 V |
Description
General part information
BQ24151 Series
The bq24150/1 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 bq24150/1 integrates a synchronous PWM controller, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.
The bq24150/1 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, bq24150/1 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 is reported to the host using the I2C interface.
During the charging process, the bq24150/1 monitors its junction temperature (TJ) and reduces the charge current once TJincreases to approximately 125°C. To support USB OTG device, bq24150/1 provides VBUS (approximately 5.05 V) by boosting the battery voltage. The bq24150/1 is available in 20-pin WCSP package.
Documents
Technical documentation and resources