LTC4085EDE#TRPBF
The LTC4085 is a USB power manager and Li-Ion battery charger designed for portable battery-powered applications. The part controls the total current used by the USB peripheral for operation and battery charging. The total input current can be limited to 20% or 100% of a programmed value up to 1.5A (typically 100mA or 500mA). Battery charge current is automatically reduced such that the sum of the load current and charge current does not exceed the programmed input current limit. The LTC4085 includes a complete constant-current/constant-voltage linear charger for single cell Li-ion batteries. The float voltage applied to the battery is held to a tight 0.8% tolerance, and charge current is programmable using an external resistor to ground. An end-of-charge status output CHRG indicates full charge. Total charge time is programmable by an external capacitor to ground. When the battery drops 100mV below the float voltage, automatic recharging of the battery occurs. Also featured is an NTC thermistor input used to monitor battery temperature while charging. The LTC4085 is available in a 14-lead low profile 4mm × 3mm DFN package. Float Voltage (V) NTC Hot Threshold Undervoltage Current Limit LTC4085 4.2V 29% Vvntc Yes LTC4085-1 4.1V 32.6% Vvntc Yes LTC4085-3 3.95V 32.6% Vvntc Yes LTC4085-4 3.95V 32.6% Vvntc No Applications Portable USB Devices: Cameras, MP3 Players, PDAs
Availability: Out of Stock
Package Type: DFN-14
CAD Models: Symbol and Footprint
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Verification | Issues | Specs | Pricing |
Specifications for the LTC4085EDE#TRPBF
Part Name | LTC4085EDE#TRPBF |
Manufacturer | Analog Devices |
Product Category | USB Power Manager (PowerPath, Battery Charger) |
Package | LFCSP:LEADFRM CHIP SCALE |
MOQ | 1 |
RoHS value | Yes |
Part Launch Date | 5/11/2006 4:00:00 AM |
Pins | 14 |
Product Link | https://www.analog.com/en/products/ltc4085.html?ADICID=SYND_WW_P682800_PF-snapeda |
Temperature Range | -40 to 125C |
Product Lifecycle | Production |
RoHS | Yes |
Formats Available for Symbols and Footprints |
Altium, Eagle, KiCAD, Cadence OrCad/Allegro, PADS, DxDesigner, PCB123, Pulsonix, Proteus |
Datasheet | See Datasheet PDF |
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