Battery Management Applied To Single-cell Lithium-ion Lithium-polymer Batteries And Charger Chips BQ24090DGQR
BQ2409x 1 a, single input and single cell lithium-ion and lithium polymer battery charger
1. Characteristics
• Charging - The charging voltage accuracy is 1%. • The charging current accuracy is 10%. • The pins can provide a maximum input current of 100mA and 500mA via USB
Limit - Programmable termination and pre-charging threshold
• Protection - 6.6V overvoltage protection - Input voltage dynamic power management - 125°C thermal regulation; 150°C thermal shutdown protection - OUT short-circuit protection and ISET short-circuit detection - operating within the JEITA range via battery NTC - cold state
½ Fast charging current, 4.06V in hot state,BQ092/3 - fixed 10-hour safety timer
• System - Lacks automatic termination and metering of battery packs with thermistors
Timer Disabled Mode (TTDM) - Status indication - Charging/Complete - Small 10-pin MSOP package
2 Applications
Smart phone
• Personal digital assistant
MP3 player
Low-power handheld devices
3 Explanation
The BQ2409x series of devices are highly integrated lithium-ion and lithium-polymer batteries.
A portable charging device suitable for space-constrained applications. This device is composed of
Powered by a USB port or an AC adapter. High input, with input overvoltage protection.
The input voltage range supports low-cost, unregulated adapters.
The BQ2409x features a single power output for battery charging. If it is 10
During the safe charging period, the average load of the system within one hour cannot fully charge the battery.
Electricity enables the system load to be connected in parallel with the battery.
Battery charging goes through the following three stages: regulation, constant current and constant current.
Press. During all charging stages, the internal control loop monitors the IC node.
When the temperature exceeds the internal temperature threshold, it will reduce the charging current.
Equipment Information (1
Equipment model, packaging, packaging size (nominal value)
BQ2409x HVSSOP (10) 3.00mm x 3.00mm
Packaging and transportation instructions
- According to the standard export packaging.
Customers can choose from cartons, wooden cases and wooden pallets according to their own requirements.
Q&A
1. How to obtain the price?
We usually quote within 24 hours after receiving your inquiry (except weekends and holidays). If you are in urgent need of a price, please send us an email or contact us in any other way so that we can provide you with a quotation.
2. What is your delivery time?
This depends on the quantity of the order and the season in which you place the order. Usually, we can ship the goods within 7 to 15 days (for small batches), and for large batches, it takes about 30 days.
3. What are your payment terms?
Factory price, 30% deposit, 70%T/T payment before shipment.
4. What is the mode of transportation?
It can be transported by sea, air or express delivery (EMS, UPS, DHL, TNT, FEDEX, etc.). Please confirm with us before placing an order.
5. How do you help our business establish a long-term and good relationship?
We maintain good quality and competitive prices to ensure that our customers benefit.
2. We respect every customer as our friend. We do business with them sincerely and make friends with them, no matter where they come from.
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