LTC3350EUHF#PBF
ActiveBACKUP POWER CONTROLLER, SUPERCAPACITOR, 4.5 TO 35 V, -40 TO 125 DEG C, QFN-EP-38
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LTC3350EUHF#PBF
ActiveBACKUP POWER CONTROLLER, SUPERCAPACITOR, 4.5 TO 35 V, -40 TO 125 DEG C, QFN-EP-38
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3350EUHF#PBF |
|---|---|
| Applications | Supercapacitor Backup Controller |
| Current - Supply | 4 mA |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 38-WFQFN Exposed Pad |
| Voltage - Supply [Max] | 35 V |
| Voltage - Supply [Min] | 4.5 V |
LTC3350 Series
High Current Supercapacitor Backup Controller and System Monitor
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Current - Supply | Voltage - Supply [Min] | Voltage - Supply [Max] | Mounting Type | Package / Case | Applications |
|---|---|---|---|---|---|---|---|---|
Analog Devices | -40 °C | 125 ¯C | 4 mA | 4.5 V | 35 V | Surface Mount | 38-WFQFN Exposed Pad | Supercapacitor Backup Controller |
Analog Devices | -40 °C | 125 ¯C | 4 mA | 4.5 V | 35 V | Surface Mount | 38-WFQFN Exposed Pad | Supercapacitor Backup Controller |
Analog Devices | -40 °C | 125 ¯C | 4 mA | 4.5 V | 35 V | Surface Mount | 38-WFQFN Exposed Pad | Supercapacitor Backup Controller |
Analog Devices | -40 °C | 125 ¯C | 4 mA | 4.5 V | 35 V | Surface Mount | 38-WFQFN Exposed Pad | Supercapacitor Backup Controller |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
LTC3350 Series
The LTC3350 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. The LTC3350 is available in a low profile 38-lead 5mm × 7mm × 0.75mm QFN surface mount package.APPLICATIONSHigh Current 12V Ride-Through UPSServers/Mass Storage/High Availability Systems