Analog Devices Inc. LTC335x High Current Supercapacitor Chargers
Analog Devices Inc. LTC335x High Current Supercapacitor Chargers offer a high efficiency synchronous step-down CC/CV backup power controller that charges and monitors a series stack of one to four supercapacitors. The LTC335x from Analog Devices delivers power from the supercapacitor stack to the backup supply rail with the step-down converter reversed as a step-up converter.
Features include a shunt regulator for overvoltage protection and internal balancers. The I2C/SMBus can be read through system voltages, currents, stack capacitance, and stack ESR, all monitored by the LTC3350 charger. The charger has a surface mount package in a low profile 38-lead 5mm × 7mm × 0.75mm QFN.
Features
- 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
- Internal active balancers — no balance resistors
- Dual ideal diode PowerPath™ controller
- All N-FET charger controller and PowerPath controller
- Active overvoltage protection shunts
- Compact 38-lead 5mm × 7mm QFN package
- Programmable input current limit prioritizes system load over capacitor charge current
LTC3350 Typical Application
LTC3351 Typical Application
Datasheets
Related Tools
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Analog Devices Inc. DC1937B Eval for LTC3350 Supercapacitor Chargers
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Publicerad: 2017-05-12
| Uppdaterad: 2022-03-29