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.
