LTC3350

RECOMMENDED FOR NEW DESIGNS

High Current Supercapacitor Backup Controller and System Monitor

Data Sheet (Rev. D) Product Selection Table
Part Models
6
1ku List Price
Starting From $5.15
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Part Details

  • 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
  • 14-Bit ADC for Monitoring System Voltages/Currents, Capacitance and ESR
  • Active Overvoltage Protection Shunts
  • Internal Active Balancers—No Balance Resistors
  • VIN: 4.5V to 35V, VCAP(n): Up to 5V per Capacitor, Charge/Backup Current: 10+A
  • Programmable Input Current Limit Prioritizes System Load Over Capacitor Charge Current
  • Dual Ideal Diode PowerPath™ Controller
  • All N-FET Charger Controller and PowerPath Controller
  • Compact 38-Lead 5mm × 7mm QFN Package
  • AEC-Q100 Qualified for Automotive Applications
LTC3350
High Current Supercapacitor Backup Controller and System Monitor
LTC3350 Application Circuit LTC3350 Pin Configuration LTC3350 Performance Graph
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 2

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Software Resources

Evaluation Software 1

Hardware Ecosystem

Parts Product Life Cycle Description
PowerPath, Ideal Diodes, and Load Switches 1
LTC4353
RECOMMENDED FOR NEW DESIGNS Dual Low Voltage Ideal Diode Controller
Supercapacitor Chargers 1
LTC3110
RECOMMENDED FOR NEW DESIGNS 2A Bidirectional Buck-Boost DC/DC Regulator and Charger/Balancer
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC3350

Software and Simulation 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

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schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC1937B

LTC3350EUHF Demo Board | High Current Supercapacitor Backup Controller and System Monitor, up to 20VIN

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Product Details

Demonstration circuit 1937B is a supercapacitor charger and backup controller with supercapacitor health and system monitoring; featuring the LTC3350. The LTC3350 has a 10.8V to 20VIN, 5.3A buck supercapacitor charger, a 25W output backup boost controller and an input ideal diode to disconnect the input supply in backup mode. An output ideal diode allows the supercapacitors to supply the output when VCAP is above the set backup voltage. As the capacitor stack voltage drops down to the set output voltage, the LTC3350 will operate as a boost regulator to supply the output until the energy in the supercapacitors are depleted.


 
DC1937B
LTC3350EUHF Demo Board | High Current Supercapacitor Backup Controller and System Monitor, up to 20VIN
DC1937B Demo Board DC1937B Demo Board DC1937B Demo Board DC1937B Demo Board DC1937B - Schematic

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