BQ25792 Series
I2C controlled, 5-A, 1-4 cell buck-boost charger with dual-input selector and USB PD 3.0 OTG output
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
I2C controlled, 5-A, 1-4 cell buck-boost charger with dual-input selector and USB PD 3.0 OTG output
| Part | Charge Current - Max [Max] | Battery Pack Voltage [Max] | Operating Temperature [Min] | Operating Temperature [Max] | Mounting Type | Interface | Current - Charging | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Package / Case | Supplier Device Package | Voltage - Supply (Max) [Max] | Fault Protection | Battery Chemistry | Programmable Features | Contents | Primary Attributes | Secondary Attributes | Type | Function | Utilized IC / Part |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25792RQMR | 5 A | 18.8 V | -40 °C | 85 °C | Surface Mount | I2C | Constant - Programmable | 4 | 1 | 29-VFQFN | 29-VQFN-HR (4x4) | 24 V | Over Current, Over Voltage, Short Circuit | Lithium Ion/Polymer | Current, Timer, Voltage | ||||||
Texas Instruments BQ25792EVM | Board(s) | Buck-Boost Battery Charger | On-Board Test Points | Power Management | Battery Charger | BQ25792 |
Key Features
• High power density, high integration buck -boost charger for 1-4 cell batteries supporting any USB PD 3.0 profileIntegrates four switching MOSFETs, BATFETIntegrates input and charging current sensingHighly efficient750-kHz or 1.5-MHz switching frequencies5-A charging current with 10-mA resolution96.5% efficient: 16-V battery at 3A from 20VSupports a wide range of input sources3.6-V to 24-V wide input operating voltage range with 30-V absolute maximum ratingMaximum power tracking with input voltage dynamic power management (VINDPM) up to 22 V and input current dynamic power management (IINDPM) up to 3.3 ADetects USB BC1.2 , SDP, CDP, DCP, HVDCP and non-standard adaptersDual-input power mux controller (optional) for source selectionNarrow voltage DC (NVDC) power path managementPowers USB port from battery (USB OTG)2.8-V to 22-V OTG output voltage with 10-mV resolution to support USB-PD PPSOTG output current regulation up to 3.32 A with 40-mA resolutionFlexible autonomous and I2C mode for optimal system performanceIntegrated 16-bit ADC for voltage, current, and temperature monitoringLow battery quiescent current21 µA for battery only operation600 nA in Charger Shutdown ModeHigh accuracy+0.65% to -0.85% charge voltage regulation for 2S-4S batteries±5% charge current regulation±5% input current regulationSafetyThermal regulation and thermal shutdownInput/battery OVP and OCPConverter MOSFETs OCPCharging safety timerPackage29-Pin 4 mm × 4 mm QFNHigh power density, high integration buck -boost charger for 1-4 cell batteries supporting any USB PD 3.0 profileIntegrates four switching MOSFETs, BATFETIntegrates input and charging current sensingHighly efficient750-kHz or 1.5-MHz switching frequencies5-A charging current with 10-mA resolution96.5% efficient: 16-V battery at 3A from 20VSupports a wide range of input sources3.6-V to 24-V wide input operating voltage range with 30-V absolute maximum ratingMaximum power tracking with input voltage dynamic power management (VINDPM) up to 22 V and input current dynamic power management (IINDPM) up to 3.3 ADetects USB BC1.2 , SDP, CDP, DCP, HVDCP and non-standard adaptersDual-input power mux controller (optional) for source selectionNarrow voltage DC (NVDC) power path managementPowers USB port from battery (USB OTG)2.8-V to 22-V OTG output voltage with 10-mV resolution to support USB-PD PPSOTG output current regulation up to 3.32 A with 40-mA resolutionFlexible autonomous and I2C mode for optimal system performanceIntegrated 16-bit ADC for voltage, current, and temperature monitoringLow battery quiescent current21 µA for battery only operation600 nA in Charger Shutdown ModeHigh accuracy+0.65% to -0.85% charge voltage regulation for 2S-4S batteries±5% charge current regulation±5% input current regulationSafetyThermal regulation and thermal shutdownInput/battery OVP and OCPConverter MOSFETs OCPCharging safety timerPackage29-Pin 4 mm × 4 mm QFN
Description
AI
The BQ25792 is a fully integrated switch-mode buck -boost charger for 1-4 cell Li-ion batteries and Li-polymer batteries. 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 uses NVDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. When system power exceeds the input source rating, battery supplement mode supports the system without overloading the input source. BQ25792 supports the full input and output (OTG) voltage ranges for USB Type-C™ and USB power delivery (USB-PD) applications.
The BQ25792 is a fully integrated switch-mode buck -boost charger for 1-4 cell Li-ion batteries and Li-polymer batteries. 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 uses NVDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. When system power exceeds the input source rating, battery supplement mode supports the system without overloading the input source. BQ25792 supports the full input and output (OTG) voltage ranges for USB Type-C™ and USB power delivery (USB-PD) applications.