Part number : HT3582DA
Functions : This is a built-in reference voltage universal charger controller chip
Package: DIP 8 Pin Type
Manufacturer: HOTCHIP TECHNOLOGY
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Description
HT3582DA is an internal reference voltage control chip universal charger, with automatic recognition of the battery polarity, short circuit protection, overtemperature Protection.
Features
• Internal reference source, the regulator output load, no load voltage adjustment peripheral components
• Normal mode supports three lights and two lamp mode, colorful lights mode
• Maximum charge current: 300mA
• Support for 0V Rechargeable battery (positive battery connection)
• The battery is fully switched to constant voltage charging mode, the battery can be charged more full
• Automatic identification battery polarity
• Short circuit protection
• Over temperature protection
• Highly integrated, low parts
Pinout :
Product Information
1. Maximum charge current: 300mA
2. Support for 0V battery charging (battery positive connection)
3. Automatic identification battery polarity
4. Short circuit protection
5. Overtemperature protection
6. Highly integrated, very few external components
Battery load
When battery power communication and have not had access, the voltage difference between both ends of BTP and BTN 4.23V (typ), L1-L3 state
Product Information Table 3.
Normal charging and saturation detection
Power connectivity and access to full battery (battery voltage <4.10V [typical]), power began to pass control of the battery into HT3582DA Line, the charging current of about 300mA (typ), gradually increasing the voltage across the battery when the battery voltage rises to 4.23V (typ) When the battery is close to saturation, then transferred to a small current constant trickle charge mode. This process of state L1-L3 described in Table 3. when Battery voltage <4.10V (typ), only to re-charge the battery.
Short circuit protection
If the situation occurs after power access battery short circuit, then HT3582DA internal “circuit protection” system will automatically reduce the charge current To 25mA (typ). In this case, if the battery again to correct polarity access can still be normal charge.
Over-temperature protection
When charging the chip junction temperature exceeds TO (150 ℃ typ), the internal “over-temperature protection,” the system will automatically reduce the charge current until The junction temperature drops to TR (120 ℃ typ), IC returns to normal charging status.
Official Site : https://www.hotchip.com.cn/
HT3582DA Datasheet PDF Download
