SY8811 is specifically designed for Bluetooth cradle charging case. It is integrated with charger and discharger inside, the charging current can be set externally. the discharger integrates two output current limit switches, provides independent load detection and load insertion detection, and supports output current detection at the same time. The integrated NTC protection ensures safely charge and discharge for the battery.
SY8811 integrates one-way communication instructions to allow the charging cases to report the status to the earbuds master controller with special event. It can realize a solution for Bluetooth cradle case with few instruments outside.
SY8811 package is QFN16-3mm*3mm.
input absolute maximum voltage 28V
Low standby current 2.5uA
Charging current is set by external resistor
1 A maximum linear charging current
Dynamic Temperature Management for charger
Auto charge end and recharge
The floating voltage is 4.2V or 4.35V
The accuracy is ±1%
Integrated input OVP protection
Boost output is 5.05V with High efficiency up to 93%@0.1A.
Load insertion identification
Shut down current detect, shut down current is 2mA
Two-stage overcurrent protection for load current
5.05V constant output
Support temperature management technology for boost
Over-current protection (OCP), over voltage protection(OVP),over temperature protection (OTP) and short circuit protection (SCP) are integrated for discharger
One-way communication instruction with special event
1-4 LEDs driver
Integrated KEY function: battery status indication & communication instruction
Interrupt with HALL sensor
IEC62368 certification
Bluetooth earbuds charging cases
Portable lithium battery
Other low-power supply applications
Mailbox:sales@tkplusemi.com
Website:www.tkplusemi.com
Address:19th Floor, Caixun Science and Technology Building, No. 3176, Keyuan South Road, Nanshan District, Shenzhen
SY8811