LTC4085EDE-3 查看數據表（PDF） - Linear Technology
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LTC4085EDE-3 Datasheet PDF : 24 Pages
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LTC4085-3/LTC4085-4
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.
Input RON vs Temperature
275
ILOAD = 400mA
250
VIN = 4.5V
225
VIN = 5V
VIN = 5.5V
200
175
150
125
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
408534 G10
Charging from USB, IBAT vs VBAT
600 VIN = 5V
VOUT = NO LOAD
500 RPROG = 100k
RCLPROG = 2k
HPWR = 5V
400
300
200
100
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
VBAT (V)
408534 G13
Ideal Diode Resistance and
Current vs Forward Voltage
(No External Device)
1000
VBAT = 3.7V
900 VIN = 0V
800
700
600
500
IOUT
400
300
RDIO
200
100
0
0
50
100
150
200
VFWD (mV)
408534 G16
Battery Current and Voltage
vs Time
600
6
500 IBAT
400
CHRG
5
VBAT
4
300
3
200
400mAhr CELL
100 VIN = 5V
RPROG = 100k
RCLPROG = 2.1k
0
0
50
2
C/10
TERMINATION 1
0
100
150
200
TIME (min)
408534 G11
Charging from USB, Low Power,
IBAT vs VBAT
120 VIN = 5V
VOUT = NO LOAD
100 RPROG = 100k
RCLPROG = 2k
HPWR = 0V
80
60
40
20
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
VBAT (V)
408534 G14
Ideal Diode Current vs Forward
Voltage and Temperature with
External Device
5000
4500
4000
VBAT = 3.7V
VIN = 0V
Si2333 PFET
3500
3000
2500
2000
1500
1000
500
0
0
–50°C
0°C
50°C
100°C
20
40
60
80 100
VFWD (mV)
408534 G17
6
Charge Current vs Temperature
(Thermal Regulation)
600
500
400
300
200
100 VIN = 5V
VBAT = 3.5V
VJA = 50°C/W
0
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
408534 G12
Ideal Diode Current vs Forward
Voltage and Temperature
(No External Device)
1000
VBAT = 3.7V
900 VIN = 0V
800
700
600
500
400
300
200
100
0
0
–50°C
0°C
50°C
100°C
50
100
150
200
VFWD (mV)
408534 G15
Ideal Diode Resistance and
Current vs Forward Voltage with
External Device
5000
4500
4000
VBAT = 3.7V
VIN = 0V
Si2333 PFET
3500
3000
2500
2000
1500
1000
500
0
0
20
40
60
80 100
VFWD (mV)
408534 G18
408534fb
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