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LINEAR TECHNOLOGY  LTC3350IUHF#PBF  Special Function IC, Super capacitor Backup Controller & System Monitor, 4.5 V to 35 V in, QFN-38

LINEAR TECHNOLOGY LTC3350IUHF#PBF
Manufacturer Part No:
LTC3350IUHF#PBF
Order Code:
2461104
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC3350IUHF#PBF is a Backup Power Controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350'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 can run 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 LTC3350 monitors system voltages, currents, stack capacitance and stack ESR which can all be read over the I²C/SMBus. The dual ideal diode controller uses N-channel MOSFETs for low loss power paths from the input and supercapacitors to the backup system supply.
  • 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
  • VCAP(n) - Up to 5V Per capacitor
  • Programmable input current limit prioritizes system load over capacitor charge current
  • Dual ideal diode powerpath™ controller
  • All N-FET charger controller and powerpath controller
  • Green product and no Sb/Br

Product Information

IC Function:
High Current Supercapacitor Backup Controller & System Monitor
Supply Voltage Min:
4.5V
Supply Voltage Max:
35V
IC Package Type:
QFN
No. of Pins:
38Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Computers & Computer Peripherals
  • System Monitoring

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000427

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