Datasheet Linear Technology LTC3351EUFF#PBF

LTC3351
Hot Swappable Supercapacitor Charger,
Backup Controller and System Monitor
FEATURES DESCRIPTION Integrated Hot Swap Controller with Circuit Breaker
nn High Efficiency Synchronous Step-Down CC/CV
Charging of One to Four Series Supercapacitors
nn Step-Up Mode in Backup Provides Greater
Utilization of Stored Energy in Supercapacitors
nn 16-Bit ADC for Monitoring System Voltages/
Currents, Capacitance and ESR
nn Programmable Undervoltage and Overvoltage
Thresholds to 35V
nn V : 4.5V to 35V, V
IN
CAP(n): Up to 5V per Capacitor,
Charge/Backup Current: >10A
nn Programmable Input Current Limit Prioritizes System
Load Over Capacitor Charge Current
nn All N-FET Charger Controller and PowerPath Controller
nn Compact 44-Lead 4mm x 7mm QFN Package The LTCВ®3351 is a backup power controller that charges
and monitors a series stack of one to four supercapacitors.
The LTC3351’s synchronous step-down controller drives
N-channel MOSFETs for constant current/constant voltage …