BQ25710 Series
SMBus 1-4 cell Buck-Boost battery charge controller w/ system power monitor & processor hot monitor
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
SMBus 1-4 cell Buck-Boost battery charge controller w/ system power monitor & processor hot monitor
| Part | Mounting Type | Interface | Supplier Device Package | Battery Chemistry | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Function | Fault Protection | Operating Temperature [Max] | Operating Temperature [Min] | Type | Utilized IC / Part | Supplied Contents | Secondary Attributes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25710RSNT | Surface Mount | SMBus | 32-QFN (4x4) | Multi-Chemistry | 4 | 1 | Battery Monitor | Over Current, Over Temperature, Over Voltage | 85 °C | -40 °C | ||||
Texas Instruments BQ25710RSNR | Surface Mount | SMBus | 32-QFN (4x4) | Multi-Chemistry | 4 | 1 | Battery Monitor | Over Current, Over Temperature, Over Voltage | 85 °C | -40 °C | ||||
Texas Instruments BQ25710EVM-017 | Battery Charger | Power Management | BQ25710 | Board(s) | On-Board Test Points |
Key Features
• Pin-to-pin and software compatible to BQ25700ACharge 1s to 4s battery from wide range of input source3.5-V to 24-V Input operating voltageSupports USB2.0, USB 3.0, USB 3.1 (Type C), and USB Power Delivery (USB-PD) input current settingsSeamless transition among buck, buck-boost and boost operationsInput current and voltage regulation (IDPM and VDPM) against source overloadPower/current monitor for CPU throttlingComprehensive PROCHOT profile, IMVP8/IMVP9 compliantInput and battery current monitorSystem power monitor, IMVP8/IMVP9 compliantNarrow voltage DC (NVDC) power path managementInstant-on with no battery or depleted batteryBattery supplements system when adapter is fully-loadedBattery MOSFET ideal diode operation in supplement modePower up USB port from battery (USB OTG)3-V to 20.8-V VOTG With 8-mV resolutionOutput current limit up to 6.4 A with 50-mA resolutionTI patented Pass Through Mode (PTM) for system power efficiency improvement and battery fast chargingWhen system is powered by battery only, Vmin Active Protection (VAP) mode supplements battery from input capacitors during system peak power spikeInput Current Optimizer (ICO) to extract max input power800-kHz or 1.2-MHz Programmable switching frequency for 2.2-µH or 1.0-µH inductorHost control interface for flexible system configurationSMBus Port optimal system performance and status reportingHardware pin to set input current limit without EC controlIntegrated ADC to monitor voltage, current and powerHigh accuracy for the regulation and monitor±0.5% Charge voltage regulation±2% Input/charge current regulation±2% Input/charge current monitor±4% Power monitorSafetyThermal shutdownInput, system, battery overvoltage protectionInput, MOSFET, inductor overcurrent protectionSafety-Related Certifications:IEC 62368-1 CB CertificationLow battery quiescent currentPackage: 32-Pin 4 × 4 WQFNPin-to-pin and software compatible to BQ25700ACharge 1s to 4s battery from wide range of input source3.5-V to 24-V Input operating voltageSupports USB2.0, USB 3.0, USB 3.1 (Type C), and USB Power Delivery (USB-PD) input current settingsSeamless transition among buck, buck-boost and boost operationsInput current and voltage regulation (IDPM and VDPM) against source overloadPower/current monitor for CPU throttlingComprehensive PROCHOT profile, IMVP8/IMVP9 compliantInput and battery current monitorSystem power monitor, IMVP8/IMVP9 compliantNarrow voltage DC (NVDC) power path managementInstant-on with no battery or depleted batteryBattery supplements system when adapter is fully-loadedBattery MOSFET ideal diode operation in supplement modePower up USB port from battery (USB OTG)3-V to 20.8-V VOTG With 8-mV resolutionOutput current limit up to 6.4 A with 50-mA resolutionTI patented Pass Through Mode (PTM) for system power efficiency improvement and battery fast chargingWhen system is powered by battery only, Vmin Active Protection (VAP) mode supplements battery from input capacitors during system peak power spikeInput Current Optimizer (ICO) to extract max input power800-kHz or 1.2-MHz Programmable switching frequency for 2.2-µH or 1.0-µH inductorHost control interface for flexible system configurationSMBus Port optimal system performance and status reportingHardware pin to set input current limit without EC controlIntegrated ADC to monitor voltage, current and powerHigh accuracy for the regulation and monitor±0.5% Charge voltage regulation±2% Input/charge current regulation±2% Input/charge current monitor±4% Power monitorSafetyThermal shutdownInput, system, battery overvoltage protectionInput, MOSFET, inductor overcurrent protectionSafety-Related Certifications:IEC 62368-1 CB CertificationLow battery quiescent currentPackage: 32-Pin 4 × 4 WQFN
Description
AI
This device is a synchronous NVDC buck-boost battery charge controller, offering a low component count, high efficiency solution for space constrained, 1s-4s battery charging applications.
The NVDC configuration allows the system to be regulated at battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.
The BQ25710 charges battery from a wide range of input sources including USB adapter, high voltage USB PD sources and traditional adapters.
During power up, the charger sets converter to buck, boost or buck-boost configuration based on input source and battery conditions. The charger automatically transits among buck, boost and buck-boost configuration without host control.
In the absence of an input source, the BQ25710 supports USB On-the-Go (OTG) function from 1- to 4-cell battery to generate adjustable 3 V to 20.8 V on VBUS with 8 mV resolution. The OTG output voltage transition slew rate can be configurable, which is complied with the USB PD 3.0 PPS specifications.
When only battery powers the system and no external load is connected to the USB OTG port, the BQ25710 supports the Vmin Active Protection (VAP) feature, in which the device charges up the VBUS voltage from the battery to store some energy in the input decoupling capacitors. During the system peak power spike, the huge current drawing from the battery creates a larger voltage drop across the impedance from the battery to the system. The energy stored in the input capacitors will supplement the system, to prevent the system voltage from dropping below the minimum system voltage and causing the system crash. This Vmin Active Protection (VAP) is designed to absorb system power peaks during periods of SOC high power demand, which is highly recommended by Intel for the platforms with 1S~2S battery.
The BQ25710 monitors adapter current, battery current and system power. The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.
This device is a synchronous NVDC buck-boost battery charge controller, offering a low component count, high efficiency solution for space constrained, 1s-4s battery charging applications.
The NVDC configuration allows the system to be regulated at battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.
The BQ25710 charges battery from a wide range of input sources including USB adapter, high voltage USB PD sources and traditional adapters.
During power up, the charger sets converter to buck, boost or buck-boost configuration based on input source and battery conditions. The charger automatically transits among buck, boost and buck-boost configuration without host control.
In the absence of an input source, the BQ25710 supports USB On-the-Go (OTG) function from 1- to 4-cell battery to generate adjustable 3 V to 20.8 V on VBUS with 8 mV resolution. The OTG output voltage transition slew rate can be configurable, which is complied with the USB PD 3.0 PPS specifications.
When only battery powers the system and no external load is connected to the USB OTG port, the BQ25710 supports the Vmin Active Protection (VAP) feature, in which the device charges up the VBUS voltage from the battery to store some energy in the input decoupling capacitors. During the system peak power spike, the huge current drawing from the battery creates a larger voltage drop across the impedance from the battery to the system. The energy stored in the input capacitors will supplement the system, to prevent the system voltage from dropping below the minimum system voltage and causing the system crash. This Vmin Active Protection (VAP) is designed to absorb system power peaks during periods of SOC high power demand, which is highly recommended by Intel for the platforms with 1S~2S battery.
The BQ25710 monitors adapter current, battery current and system power. The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.