• 參數(shù)資料
    型號(hào): LTC4009IUF-1#PBF
    廠商: LINEAR TECHNOLOGY CORP
    元件分類: 穩(wěn)壓器
    英文描述: BATTERY CHARGE CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20
    封裝: 4 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-220WGGD-1, QFN-20
    文件頁(yè)數(shù): 25/28頁(yè)
    文件大?。?/td> 351K
    代理商: LTC4009IUF-1#PBF
    LTC4009
    LTC4009-1/LTC4009-2
    4009fd
    Typical perForMance characTerisTics
    PWM Frequency vs Duty Cycle
    Gate Drive Non-Overlap
    Charge Current Line Regulation
    Input Current Limit
    Battery Load Dump
    BA
    TTER
    YVOL
    TAGE
    (500mV
    /DIV)
    LOAD
    STATE
    TIME (1ms/DIV)
    CLP = 20V
    VOUT = 12.3V
    4009 G06
    DISCONNECT
    RECONNECT
    3A
    2A
    12.1V
    1A
    DCIN (V)
    5
    –0.5
    CHARGE
    CURRENT
    ERROR
    (%)
    –0.4
    –0.2
    –0.1
    0
    0.5
    0.2
    10
    15
    4009 G07
    –0.3
    0.3
    0.4
    0.1
    20
    25
    ICHG = 1A
    ICHG = 2A
    ICHG = 3A
    BAT = 6V
    RSENSE = 33m
    RIN = 3.01k
    Charge Current Load Regulation
    BAT (V)
    11.0
    CHARGE
    CURRENT
    (A)
    3.5
    3.0
    2.5
    2.0
    1.5
    1.0
    0.5
    0
    –0.5
    12.6
    4009 G08
    11.4
    11.8
    12.2
    13.0
    ICHG = 3A
    ICHG = 2A
    ICHG = 1A
    DCIN = 20V
    RSENSE = 33m
    RIN = 3.01k
    SYSTEM LOAD (A)
    0
    CURRENT
    (A)
    0.5
    1.0
    1.5
    2.5
    4009 G09
    0
    –0.5
    –1.0
    0.5
    1.0
    2.0
    2.5
    3.0
    IIN
    ICHG
    ICL STATE
    2.5A BULK CHARGE
    2.1A INPUT CURRENT LIMIT
    PWM Soft-Start
    ICHG
    2A/DIV
    TIME (500s/DIV)
    4009 G10
    ITH
    1V/DIV
    PROG
    1V/DIV
    SHDN
    5V/DIV
    TIME (80ns/DIV)
    EXTERNAL
    FET
    DRIVE
    (1V
    /DIV)
    4009 G11
    TGATE
    BGATE
    DUTY CYCLE (%)
    0
    PWM
    FREQUENCY
    (kHz)
    100
    200
    300
    400
    500
    600
    20
    40
    60
    80
    4009 G12
    100
    CLP = 6V
    CLP = 12V
    CLP = 20V
    CLP = 25V
    ICHG = 750mA
    (TA = 25°C unless otherwise noted. DIN = SSB44, L = IHLP-2525 6.8H)
    Charge Current Accuracy
    BAT (V)
    0
    5
    4
    3
    2
    1
    0
    –1
    –2
    12
    20
    4009 G15
    4
    8
    16
    2
    14
    22
    6
    10
    18
    24
    CHARGE
    CURRENT
    ERROR
    (%)
    DCIN = 24V
    RPROG = 35.7k
    RSENSE = 33m
    RIN = 3.01k
    DCIN = 12V
    RPROG = 26.7k
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