Texas Instruments BQ25708RSNT
- Part Number:
- BQ25708RSNT
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6368978-BQ25708RSNT
- Description:
- SMBus Multi-Chemistry battery Buck-Boost charge controller
- Datasheet:
- bq25708
- Number of series cells1
- Charge current (max) (A)8.128
- Vin (max) (V)24
- Cell chemistryLead Acid
- Battery charge voltage (min) (V)1.024
- Battery charge voltage (max) (V)19.2
- Absolute max Vin (max) (V)30
- Control topologySwitch-Mode Buck-boost
- Control interfaceSMBus
- FeaturesBAT temp thermistor monitoring (hot/cold profile)
- Vin (min) (V)3.5
- RatingCatalog
- Operating temperature range (°C)-40 to 85
The bq25708 is a synchronous NVDC battery buck-boost charge controller, offering low component count, high efficiency solution for space-constraint, multi-chemistry battery charging applications.
The NVDC-1 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 bq25708 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.
The bq25708 monitors adapter current, battery current and system power. The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.
BQ25708 SMBus Multi-Chemistry Battery Buck-Boost Charge Controller with System Power Monitor and Processor Hot Monitor 3.5V to 24V 32-Pin WQFN T/R
e4 BQ25708 ACTIVE (Last Updated: 1week ago) Nickel/Palladium/Gold (Ni/Pd/Au) battery charger 19.2V Max 8.128A 800mum -40C~155C TJ
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