Datasheet for LTC3351EUFF#PBF:
- Manufacturer Part Number : LTC3351EUFF#PBF
- Manufacturer : AD
- Description : Hot Swappable Supercapacitor Charger, Backup Controller and System Monitor IC
- Series : LTC3351
- Reference Price : USD 4.2
- Our Price : We have a better price, contact us by email
- Product Type : Supercapacitor Chargers
- Function : -
- Current Suggest : Recommended for New Designs
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 44-Lead DFN (4mm x 7mm w/ EP)
- Pins : 44
- MFG Package Case : 05-08-1500
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 52
- Working Temperature : -40 to 125C
- Other Part Number : LTC3351EUFF#PBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- Integrated Hot Swap Controller with Circuit Breaker
- High Efficiency Synchronous Step-Down CC/CV Charging of One to Four Series Supercapacitors
- Step-Up Mode in Backup Provides Greater Utilization of Stored Energy in Supercapacitors
- 16-Bit ADC for Monitoring System Voltages/Currents, Capacitance and ESR
- Programmable Undervoltage and Overvoltage Thresholds to 35V
- VIN: 4.5V to 35V, VCAP(n): Up to 5V per Capacitor, Charge/Backup Current: >10A
- Programmable Input Current Limit Prioritizes System Load Over Capacitor Charge Current
- All N-FET Charger Controller and PowerPath™ Controller
- Compact 44-Lead 4mm × 7mm QFN Package
The LTC3351 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 charging with programmable input current limit. In addition, the step-down converter runs in reverse as a step-up converter to deliver power from the supercapacitor stack to the backup supply rail. Internal balancers eliminate the need for external balance resistors and each capacitor has a shunt regulator for overvoltage protection.
The LTC3351 monitors system voltages, currents, stack capacitance and ESR which can all be read over the I2C/SMBus port. The hot swap controller uses N-channel MOSFETs for inrush control and a low loss path from the input to the output. The ideal diode controller uses an N-channel MOSFET for a low loss power path from the supercapacitors to the output. The LTC3351 is available in a thermally enhanced low profile 44-lead 4mm × 7mm × 0.75mm QFN surface mount package.
Applications
- Swappable PCIE Cards with NVM
- High Current 12V Ride-Through UPS
- Servers/Mass Storage/High Availability Systems
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
