| Customization: | Available |
|---|---|
| Conductive Type: | Unipolar Integrated Circuit |
| Integration: | LSI |
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The bq2423x series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or ac adapter and support charge currents between 25 mA and 500 mA. The high-input-voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423x to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.
The bq2423x features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this enables instant system turn-on even with a totally discharged battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.
Notice:
1. As a Diamond Member and an Audited Supplier of Made-in-China since 2014, Telefly guarantees that all the semiconductor chips and other electronic components we provide are 100% new and original, all the chips and components are from formal channels and can be traced back to original manufacturers.
2. All products we provide will be double checked and proper inspection process will be strictly followed before delivery.
3. We promise to provide at least 1 year after-sell service for all products we sell.
4. Due to the reality of sometime volatile changes of the chips and components' stock and prices, please contact with us for their availability and quoting prices before payment.
5. We use DHL, UPS, FedEx, TNT, HONGKONG Post, EUB, EMS or other global express delivery services you designate.
Why you choose TELEFLY be one of your partner?
1.Customer get satisfied quality and service with competitive price and punctual delivery.
2.OEM service with 13-year experiences, free samples are available.
3.Prompt answer for any question and inquiry in the shortest time.
4.Factory directly,reduce your cost and save time.
Q1 . What your MOQ?
A1 .If not specified, 1 pcs is ok,whatever how many you need,and we will also give you the best service.
Q2.What certification did you get?
A2 : Our product strictly operate the ISO9001:2008 quality control system and we passed the CE,FCC,ROHS and SGS test,you can trust us.
Q3 :What about your package and delivery,will it broke during shipping?
A3:You don't need to worry about the package,we will use shockproof case for delivering.
Q4.What your common delivery way?
A4:By air, by sea or express(UPS,DHL,Fedex,TNT,EMS...)We will make a perfect delivery plan for you.
The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded.
The charger power stage and charge current sense functions are fully integrated. The charger function has high-accuracy current and voltage regulation loops, charge status display, and charge termination. The input current limit and charge current are programmable using external resistors.
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