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LTC3554EPD Datasheet(PDF) 7 Page - Linear Technology

Part # LTC3554EPD
Description  Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3554EPD Datasheet(HTML) 7 Page - Linear Technology

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LTC3554
7
3554f
TYPICAL PERFORMANCE CHARACTERISTICS
IBAT vs VBAT
Forward Voltage
vs Ideal Diode Current
VBUS Connect Waveform
VBUS Disconnect Waveform
Battery Charge Current and
Voltage vs Time
VFLOAT Load Regulation
Battery Regulation (Float)
Voltage vs Temperature
RON from VBUS to VOUT
vs Temperature
Charge Current vs Temperature
(Thermal Regulation)
TA = 25°C, unless otherwise specified.
TEMPERATURE (°C)
–75 –50 –25
25
50
75 100
150
125
0
0.20
0.30
0.35
0.45
0.50
0.40
3554 G05a
0.25
IOUT = 200mA
TEMPERATURE (°C)
–75
0
160
240
480
400
320
–25
25
50
150
3554 G06
80
–50
0
75 100 125
VBUS = 5V
HPWR = H
RPROG = 1.87k
TIME (hour)
0
0
200
300
600
500
400
2
4
5
3554 G07
100
0
2
3
6
5
4
1
13
6
7
8
920mAhr CELL
VBUS = 5V
RPROG = 1.87k
CHRG
VBAT
SAFETY TIMER
TERMINATION
C/10
IBAT
IBAT (mA)
050
4.192
4.196
4.198
4.204
4.202
4.200
200
150
250
350
450
400
3554 G08
4.194
100
300
VBUS = 5V
HPWR = H
TEMPERATURE (°C)
–75
–25
–50
4.150
4.200
4.225
4.250
50
100 125
3554 G08
4.175
25
075
VBUS = 5V
IBAT = 2mA
VBAT (V)
2
2.4
3.6
4
3.2
2.8
0
200
300
500
400
3554 G10
100
4.4
VBUS = 5V
HPWR = H
RPROG = 1.87k
IBAT (mA)
0
400
200
0
100
150
250
300
200
1000
1200
3554 G11
50
800
600
VBUS = 5V
VBUS = 0V
VBAT = 3.75V
IOUT = 100mA
RPROG = 2k
1ms/DIV
5V
5V
VBUS
VOUT
0
0
0A
0A
IBUS
0.5A/DIV
IBAT
0.5A/DIV
3554 G12
VBAT = 3.75V
IOUT = 100mA
RPROG = 2k
3554 G13
50μs/DIV
5V
5V
VBUS
VOUT
0
0
0A
0A
IBUS
0.5A/DIV
IBAT
0.5A/DIV



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