SGM41570 SMBus NVDC Buck-Boost Charge Controller for 1- to 4-Cell Battery PRELIMINARY DATASHEET
●GENERAL DESCRIPTION
■The SGM41570 is a synchronous Buck-Boost battery charge controller with NVDC power path management. It can provide high efficiency and low component count solution for 1-cell to 4-cell batteries charging applications.
■The system is regulated slightly to be higher than the battery voltage, but not lower than the programmable system minimum voltage. Therefore, the system power is maintained even if the battery is completely depleted or removed.
■Dynamic power management (DPM) feature is also included that automatically reduces the charge current if the input current or voltage limit is reached. If the system load continues to increase after reduction of charge current down to zero, the battery enters the supplement mode and both adapter and battery power the system.
■A wide range of input sources are supported for SGM41570, including traditional adapters, USB adapter and high voltage USB PD sources. The converter is configured as Buck, Boost or Buck-Boost during power-up, depending on the input source and battery conditions. The charger automatically switches among Buck, Boost and Buck-Boost without host control.
■When the input source is absent, the SGM41570 can work in USB On-The-Go (OTG) mode to supply VBUS from battery.
■The OTG output voltage can be programmed from 3V to 20.56V with 8mV resolution. The slew rate of the output voltage transitions in OTG can be configured (by OTG current setting) to comply with the USB PD 3.0 PPS specifications.
■If there is no external load on the USB OTG port and the system is powered by battery-only, the V MIN Active Protection (VAP) feature is supported. In VAP, the VBUS voltage is charged up by the battery and the energy is stored in the input decoupling capacitors. When the system requires peak power spike, the charge stored on the input capacitor discharges to maintain the system voltage at minimum system voltage.
■Adapter current, battery current and system power are monitored in SGM41570. When the system power is too high and exceeds available power from adapter and battery together, a flexibly programmed nPROCHOT pulse is asserted to inform CPU for throttle back.
|
SMBus NVDC Buck-Boost Charge Controller 、 synchronous Buck-Boost battery charge controller |
|
|
[ 1- to 4-Cell Battery ][ Bluetooth Speakers ][ Drones ][ IP Cameras ][ Detachable Power Supply ][ Portable Internet Devices ][ Portable Internet Devices Accessory ][ Industrial Equipment ][ Medical Equipment ][ 1-cell to 4-cell batteries charging applications ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
TQFN-4×4-32AL |
|
|
English Chinese Chinese and English Japanese |
|
|
JUNE 25, 2023 |
|
|
|
|
|
|
|
|
692 KB |
- +1 Like
- Add to Favorites
Recommend
- SGM41570 Won “Best Power Management IC of the Year“ at the “2023 EE Awards Asia“ Ceremony in Taiwan
- SG Micro Corp (SGMICRO) and Sekorm Announced a Distributor Agreement that Brings High Performance, High Quality Analog ICs
- High voltage, High-side Current-sense Amplifier SGM8196 from SGMICRO won the “Amplifier/Data Conversion of the Year“
- SG Micro Achieved USD 3.6M Sales Revenue from The Cooperation with Sekorm for 3 Years
- Sekorm Won the Excellent Supplier Award by Phase Lock for High Quality Supply and Professional Technical Support
- 2021 Sekorm New Products Seminar: ROHM/Renesas/Sunlord/SGMICRO Power Management
- New power management products for Sekorm Seminar in July
- Sekorm Was Awarded by a Number of Technology Giants for Decreasing the Supply Chain Risk of Electronic Components
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
