参数资料
型号: LTC3553EUD#TRPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20
封装: 3 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件页数: 34/36页
文件大小: 518K
代理商: LTC3553EUD#TRPBF
LTC3553
7
3553fa
VBUS Supply Current
vs Temperature
VBUS Supply Current
vs Temperature (Suspend Mode)
Battery Drain Current
vs Temperature
VBUS Current Limit
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, unless otherwise specied.
TEMPERATURE (°C)
–75
200
I BUS
(μA) 300
350
400
–25
25
50
150
3553 G01
250
–50
0
75 100 125
VBUS = 5V
HPWR = L
TEMPERATURE (°C)
–75
0
I BUS
(μA)
10
15
25
20
–25
25
50
150
3553 G02
5
–50
0
75 100 125
VBUS = 5V
TEMPERATURE (°C)
–75
0
I BA
T(μA)
2
3
5
4
–25
25
50
150
3553 G04
1
–50
0
75 100 125
VBUS = 5V
VBAT = 3.8V
TEMPERATURE (°C)
–75
0
I VBUS
(mA)
200
300
500
400
–25
25
50
3553 G05
100
–50
0
75
100 125
VBUS = 5V
HPWR = H
HPWR = L
Battery Drain Current
vs Temperature (Suspend Mode)
VBUS and Battery Current
vs Load Current
Battery Charge Current and
Voltage vs Time
RON from VBUS to VOUT
vs Temperature
Charge Current vs Temperature
(Thermal Regulation)
TEMPERATURE (°C)
–75 –50 –25
25
50
75 100
150
125
0
0.20
R
ON
(Ω)
0.30
0.35
0.45
0.50
0.40
3553 G07
0.25
IOUT = 200mA
TEMPERATURE (°C)
–50 –30 –10
30
50
70
90
130
110
10
0
BA
TTER
Y
DRAIN
CURRENT
(μA)
4
6
10
18
16
14
12
8
3553 G03
2
BUCK AND LDO ON
VBAT = 3.8V
STBY = 3.8V
REGULATORS LOAD = 0mA
ONLY LDO ON
ONLY BUCK ON
BUCK AND LDO OFF
HARD RESET
LOAD CURRENT (mA)
0
100
300
500
400
200
–100
CURRENT
(mA)
100
200
400
600
500
300
3553 G06
0
RPROG = 1.87k
IVBUS
ILOAD
IBAT
(CHARGING)
IBAT
(DISCHARGING)
TEMPERATURE (°C)
–75
0
I BA
T(mA)
160
240
480
400
320
–25
25
50
150
3553 G08
80
–50
0
75 100 125
VBUS = 5V
HPWR = H
RPROG = 1.87k
TIME (hour)
0
BA
TTER
Y
CURRENT
(mA)
VOL
TAGE
(V)
200
300
600
500
400
2
4
5
3553 G09
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
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