Synchronous, 80V Bi-directional Buck-Boost Charger Controller
with I2C interface and MPPT
1 Descriptions
SHP8808 is a synchronous buck-boost charger, which
supports buck mode, boost mode and buck-boost mode
during forward charging or reverse discharging operation.
SHP8808 manages multi types of battery charging from
wide input range from 4.5V to 80V, supporting trickle charge,
pre-charge, constant current charge, constant voltage
charge and autonomous termination. The battery
discharging mode supports wide output range from 5V to
48V. SHP8808 also provides input current and battery
current monitoring function.
Through I2C interface, user can set the
charging/discharging mode easily, and program the
charging current, charging voltage, input voltage regulation,
input current limit, OTG output voltage adjustment, current
limits and other parameters flexibly. Besides, input/output
current limit, charge voltage/discharging voltage, and
switching frequency could be set by external resistors.
SHP8808 supports frequency dithering to meet better EMI
performance and integrates synchronization feature to
switching under same frequency with external clock.
SHP8808 integrates 11-bit ADC to monitor voltage, current.
Full protection is supported including input and battery overvoltage
protection, input over-current, over-temperature
protection.
SHP8808 is available in a 5mm x 6mm QFN-36 Package.
2 Features
⚫ Wide Input Range: 4.5V to 80V, 88V sustainable
⚫ High Efficiency Buck-Boost Conversion
⚫ Buck-Boost Battery Charger up to 16 cells Li-on battery,
18 cells LiFePO4 battery, lead-acid battery
⚫ Charging Management including Trickle charge, PreCharge,
CC Charge, CV Charge, Auto-recharge
◼ Charge current : 1000mA~20A，150mA/step，for 5mΩ ◼ Pre-charge current: 400mA~10A, 100mA/step，for 5mΩ ◼ Termination Current: 400mA~6700mA，100mA/step ，for 5mΩ
⚫ Support reverse discharging mode:
◼ Power up USB port from battery (USB OTG), Compliant with PD 3.1
◼ OTG output voltage 5~48V
◼ EPR 24V/36V/48V
◼ Output Current: 2375mA~50A, 375mA/step for 2mΩ
⚫ I2C interface
⚫ Input current limit set by external resistor and register,
up to 50A, support 2mΩ/5mΩ sense resistor
⚫ Input voltage regulation to avoid adapter overload
⚫ Support external supply for driver, up to 10V
⚫ Switching frequency: 80kHz~480kHz and support
frequency dithering and frequency synchronization
⚫ Current monitor for input and output current
⚫ Automatic MPPT algorithm to support solar charging
⚫ Integrated 11-bit high accuracy ADC for
current/voltage monitor
⚫ Protection including UVP, OVP, OCP, SCP, OTP
⚫ QFN 5x6-36 Package, 0.5mm pitch
3 Applications
⚫ Outdoor Power Station
⚫ Industrial Equipment
⚫ Power Backup
⚫ Equipment with Rechargeable Batteries
4 Device Information
ORDER NUMBER PACKAGE BODY SIZE
SHP8808QDGR 36 pin QFN 5mm x 6mm x 0.75mm
