BQ25790YBGR
ActiveINTEGRATED, NVDC, 5-A 1-CELL TO 4-CELL SWITCH-MODE BUCK-BOOST BATTERY CHARGER
Deep-Dive with AI
Search across all available documentation for this part.
BQ25790YBGR
ActiveINTEGRATED, NVDC, 5-A 1-CELL TO 4-CELL SWITCH-MODE BUCK-BOOST BATTERY CHARGER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ25790YBGR |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Battery Pack Voltage [Max] | 18.8 V |
| Charge Current - Max [Max] | 5 A |
| Current - Charging | Constant |
| Fault Protection | Over Voltage, Over Current, Short Circuit, Over Temperature, Reverse Battery |
| Interface | I2C |
| Mounting Type | Surface Mount |
| Number of Cells [Max] [custom] | 4 |
| Number of Cells [Min] [custom] | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 56-XFBGA, DSBGA |
| Programmable Features | Current, Timer, Voltage |
| Supplier Device Package | 56-DSBGA |
| Supplier Device Package [x] | 2.9 |
| Supplier Device Package [y] | 3.32 |
| Voltage - Supply (Max) [Max] | 24 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 3000 | $ 3.08 | |
| Texas Instruments | LARGE T&R | 1 | $ 4.21 | |
| 100 | $ 3.44 | |||
| 250 | $ 2.70 | |||
| 1000 | $ 2.29 | |||
BQ25790 Series
Integrated, NVDC, 5-A 1-cell to 4-cell switch-mode buck-boost battery charger
| Part | Package / Case | Fault Protection | Battery Chemistry | Operating Temperature [Max] | Operating Temperature [Min] | Mounting Type | Current - Charging | Interface | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Charge Current - Max [Max] | Battery Pack Voltage [Max] | Supplier Device Package | Supplier Device Package [x] | Supplier Device Package [y] | Voltage - Supply (Max) [Max] | Programmable Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25790YBGR | 56-XFBGA, DSBGA | Over Current, Over Temperature, Over Voltage, Reverse Battery, Short Circuit | Lithium Ion/Polymer | 85 °C | -40 °C | Surface Mount | Constant | I2C | 4 | 1 | 5 A | 18.8 V | 56-DSBGA | 2.9 | 3.32 | 24 V | Current, Timer, Voltage |
Description
General part information
BQ25790 Series
The BQ25790 is a fully integrated switch-mode buck-boost charger for 1-4 cell Li-ion battery and Li-polymer battery. The integration includes 4 switching MOSFETs (Q1, Q2, Q3, Q4), input and charging current sensing circuits, the battery FET (QBAT) and all the loop compensation of the buck-boost converter. It provides high power density and design flexibility to charge batteries across the full input voltage range for USB Type-C™ and USB power delivery (USB-PD) applications such as smart phone, tablet and other portable devices.
The charger supports the narrow VDC power path management, in which the system is regulated at a voltage slightly higher than the battery voltage, but not drop below the minimum system voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery gets into supplement mode and prevents the input source from being overloaded and the system from crashing.
The device charges a battery from a wide range of the input sources including legacy USB adapter to high voltage USB PD adapter and traditional barrel adapter. The charger automatically sets converter to be buck, boost or buck-boost configurations based on input voltage and battery voltage without the host control. The dual input source selector manages the power flowing from two different input sources. The inputs selection is controlled by the host through I2C with default source #1 (VAC1) as the primary input and the source #2 (VAC2) as the secondary input.
Documents
Technical documentation and resources