BQ24079TRGTR
ActiveSTANDALONE 1-CELL 1.5-A LINEAR CHARGER, POWER PATH, 4.1-V VBAT AND VOLTAGE-BASED TS
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BQ24079TRGTR
ActiveSTANDALONE 1-CELL 1.5-A LINEAR CHARGER, POWER PATH, 4.1-V VBAT AND VOLTAGE-BASED TS
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ24079TRGTR | BQ24079 Series |
|---|---|---|
| Battery Chemistry | Lithium Ion | Lithium Ion, Lithium Ion/Polymer |
| Battery Pack Voltage | 4.1 V | 4.1 V |
| Charge Current - Max [Max] | 1.5 A | 1.5 A |
| Current - Charging | Constant - Programmable | Constant - Programmable |
| Embedded | - | False |
| Fault Protection | Reverse Current, Over Voltage, Over Temperature, Short Circuit | Reverse Current, Over Voltage, Over Temperature, Short Circuit |
| Function | - | Battery Charger |
| Grade | - | Automotive |
| Interface | USB | USB |
| Mounting Type | Surface Mount | Surface Mount, Surface Mount, Wettable Flank |
| Number of Cells | 1 | 1 |
| Operating Temperature [Max] | 125 ¯C | 125 ¯C |
| Operating Temperature [Min] | 0 °C | -40 - 0 °C |
| Package / Case | 16-VFQFN Exposed Pad | 16-VFQFN Exposed Pad |
| Primary Attributes | - | Li-Ion / Li-Pol (1 Cell) |
| Programmable Features | Current, Timer | Current, Timer |
| Qualification | - | AEC-Q100 |
| Secondary Attributes | - | Charge Timer |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 16-VQFN (3x3) | 16-VQFN (3x3) |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ24079T |
| Voltage - Supply (Max) [Max] | 6.4 V | 6.4 - 26 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 | $ 2.45 | |
| 10 | $ 2.20 | |||
| 25 | $ 2.08 | |||
| 100 | $ 1.80 | |||
| 250 | $ 1.71 | |||
| 500 | $ 1.63 | |||
| Digi-Reel® | 1 | $ 2.45 | ||
| 10 | $ 2.20 | |||
| 25 | $ 2.08 | |||
| 100 | $ 1.80 | |||
| 250 | $ 1.71 | |||
| 500 | $ 1.63 | |||
| Tape & Reel (TR) | 3000 | $ 1.63 | ||
| Texas Instruments | LARGE T&R | 1 | $ 1.57 | |
| 100 | $ 1.30 | |||
| 250 | $ 0.93 | |||
| 1000 | $ 0.70 | |||
BQ24079 Series
Automotive Qualified Standalone 1-cell 1.5-A linear charger, Power Path and 4.1-V VBAT
| Part | Interface | Programmable Features | Number of Cells | Mounting Type | Current - Charging | Fault Protection | Charge Current - Max [Max] | Battery Pack Voltage | Supplier Device Package | Operating Temperature [Min] | Operating Temperature [Max] | Package / Case | Voltage - Supply (Max) [Max] | Battery Chemistry | Function | Utilized IC / Part | Supplied Contents | Embedded | Type | Secondary Attributes | Primary Attributes | Qualification | Grade |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24079TRGTR | USB | Current, Timer | 1 | Surface Mount | Constant - Programmable | Over Temperature, Over Voltage, Reverse Current, Short Circuit | 1.5 A | 4.1 V | 16-VQFN (3x3) | 0 °C | 125 ¯C | 16-VFQFN Exposed Pad | 6.4 V | Lithium Ion | |||||||||
Texas Instruments BQ24079RGTR | USB | Current, Timer | 1 | Surface Mount | Constant - Programmable | Over Temperature, Over Voltage, Reverse Current, Short Circuit | 1.5 A | 4.1 V | 16-VQFN (3x3) | -40 °C | 125 ¯C | 16-VFQFN Exposed Pad | 6.4 V | Lithium Ion | |||||||||
Texas Instruments BQ24079RGTT | USB | Current, Timer | 1 | Surface Mount | Constant - Programmable | Over Temperature, Over Voltage, Reverse Current, Short Circuit | 1.5 A | 4.1 V | 16-VQFN (3x3) | -40 °C | 125 ¯C | 16-VFQFN Exposed Pad | 6.4 V | Lithium Ion | |||||||||
Texas Instruments BQ24079TEVM | Battery Charger | BQ24079T | Board(s) | Power Management | Charge Timer | Li-Ion / Li-Pol (1 Cell) | |||||||||||||||||
Texas Instruments BQ24079QWRGTTQ1 | USB | Current, Timer | 1 | Surface Mount, Wettable Flank | Constant - Programmable | Over Temperature, Over Voltage, Reverse Current, Short Circuit | 1.5 A | 4.1 V | 16-VQFN (3x3) | -40 °C | 125 °C | 16-VFQFN Exposed Pad | 26 V | Lithium Ion | AEC-Q100 | Automotive | |||||||
Texas Instruments BQ24079TRGTT | USB | Current, Timer | 1 | Surface Mount | Constant - Programmable | Over Temperature, Over Voltage, Reverse Current, Short Circuit | 1.5 A | 4.1 V | 16-VQFN (3x3) | 0 °C | 125 ¯C | 16-VFQFN Exposed Pad | 6.4 V | Lithium Ion | |||||||||
Texas Instruments BQ24079QWRGTRQ1 | USB | Current, Timer | 1 | Surface Mount | Constant - Programmable | Over Temperature, Over Voltage, Reverse Current, Short Circuit | 1.5 A | 4.1 V | 16-VQFN (3x3) | -40 °C | 125 °C | 16-VFQFN Exposed Pad | 26 V | Lithium Ion/Polymer | AEC-Q100 | Automotive |
Description
General part information
BQ24079 Series
The bq24079QW-Q1 is an integrated Li-ion linear charger and system power-path management device targeted at space-constraint automotive applications such as telematics/eCall. The device can operate from 4.35 V to 6.4 V and support charge currents up to 1.5 A. The input voltage range with input overvoltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the bq24079QW-Q1 to meet the USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the system load from crashing incorrectly configured USB sources.
The bq24079QW-Q1 features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold; thus, supplying the system load at all times while monitoring the charge current separately. This feature along with the 4.1-V battery regulation voltage helps to extend battery life time by reducing the number of charge and discharge cycles on the battery, allowing for proper charge termination and enabling the system to run with a defective or absent battery pack.
Additionally, the regulated system input enables instant system turn-on when plugged in even with a totally discharged battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.
Documents
Technical documentation and resources