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Datasheet Linear Technology LTC4425

ManufacturerLinear Technology
SeriesLTC4425

Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor

Datasheets

  • Download » Datasheet, PDF, 660 Kb, Revision: A
    LTC4425 - Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor
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    LTC4425
    Linear SuperCap Charger
    with Current-Limited Ideal
    Diode and V/I Monitor
    Description Features
    50mΩ Ideal Diode from VIN to VOUT
    Smart Charge Current Profile Limits Inrush Current
    Internal Cell Balancer (No External Resistors)
    Programmable Output Voltage (LDO Mode)
    Programmable VIN to VOUT Current Limit
    Continuous Monitoring of VIN to VOUT Current via
    PROG Pi Low Quiescent Current: 20μA
    n V Power Fail, PGOOD Indicator
    IN
    n 2.45V/2.7V Cell Protection Shunts
    (4.9V/5.4V SuperCap Max Top-Off Voltage)
    n 3A Peak Current Limit, Thermal Limiting
    n Tiny Application Circuit, 3mm × 3mm × 0.75mm DFN
    and 12-Lead MSOP Packages n n n n n The LTC®4425 is a constant-current/constant-voltage linear
    charger designed to charge a 2-cell supercap stack from
    either a Li-Ion/Polymer battery, a USB port, or a 2.7V to
    5.5V current-limited supply. The part operates as an ideal
    diode with an extremely low 50mΩ on-resistance making ...

Prices

Packaging

LTC4425EDD#PBFLTC4425EDD#TRPBFLTC4425EMSE#PBFLTC4425EMSE#TRPBFLTC4425IDD#PBFLTC4425IDD#TRPBFLTC4425IMSE#PBFLTC4425IMSE#TRPBF
Package3x3 DFN-123x3 DFN-12MS-12EMS-12E3x3 DFN-123x3 DFN-12MS-12EMS-12E
Package CodeDDDDMSEMSEDDDDMSEMSE

Parametrics

LTC4425EDD#PBFLTC4425EDD#TRPBFLTC4425EMSE#PBFLTC4425EMSE#TRPBFLTC4425IDD#PBFLTC4425IDD#TRPBFLTC4425IMSE#PBFLTC4425IMSE#TRPBF
Demo BoardsDC1589ADC1589ADC1589ADC1589ADC1589ADC1589ADC1589ADC1589A
Export Control, yes/nonononononononono
FeaturesProgrammable Current LimitProgrammable Current LimitProgrammable Current LimitProgrammable Current LimitProgrammable Current LimitProgrammable Current LimitProgrammable Current LimitProgrammable Current Limit
Ishutdown, A33333333
Isupply, mA.020.020.020.020.020.020.020.020
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A33333333
Supercaps In Series22222222
TopologyLinearLinearLinearLinearLinearLinearLinearLinear
Vin Max, V5.55.55.55.55.55.55.55.5
Vin Min, V2.72.72.72.72.72.72.72.7
Vout Max, V5.55.55.55.55.55.55.55.5
Vout Maximum5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V

Eco Plan

Moldel Line

Series: LTC4425 (8)

Manufacturer's Classification

  • Power Management > Supercapacitor Chargers

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