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LTC3558EUD#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
LTC3558
7
3558f
Timer Accuracy vs Temperature
Buck and Buck-Boost Regulator
Switching Frequency vs Temperature
TEMPERATURE (°C)
–55
–2
PERCENT ERROR (%)
–1
1
2
3
25
7
3558 G16
0
–15
–35
45 65
585
4
5
6
V
CC
= 5V
TIME (HOUR)
0
I
BAT
(mA)BAT (V)CHRG (V)
5.0
200
0
400
800
600
1000
35
3558 G17
3.5
3.0
5.0
4.5
4.0
3.0
4.0
1.0
2.0
0
12 4 6
V
CC
= 5V
R
PROG
= 0.845k
HPWR = 5V
Recharge Threshold
vs Temperature
Battery Charger FET
On-Resistance vs Temperature
SUSP/HPWR Pin Rising
Thresholds vs Temperature
CHRG Pin Output Low Voltage
vs Temperature
Timer Accuracy vs Supply Voltage
TEMPERATURE (°C)
–55
75
V
RECHARGE
(mV)
79
87
91
95
115
103
–15
25
45
3558 G10
83
107
111
99
–35
5
65
85
V
CC
= 5V
TEMPERATURE (°C)
–55
R
DS(ON)
(m)
500
550
600
85
3558 G11
450
400
300
–35
–15 5 25 45 65
350
700
650
V
CC
= 4V
I
BAT
= 200mA
EN1 = EN2 = 0V
TEMPERATURE (°C)
–55
THRESHOLD (V)
1.1
5
3558 G12
0.8
0.6
–35 –15 25
0.5
0.4
1.2
1.0
0.9
0.7
45 65 85
V
CC
= 5V
TEMPERATURE (°C)
–55
80
100
140
545
3558 G13
60
40
–35 –15
25 65 85
20
0
120
VOLTAGE (mV)
V
CC
= 5V
I
CHRG
= 5mA
CHRG Pin I-V Curve
CHRG (V)
0
70
60
50
40
30
20
10
0
35
3558 G14
12
46
I
CHRG
(mA)
V
CC
= 5V
BAT = 3.8V
V
CC
(V)
4.3
–1.0
PERCENT ERROR (%)
–0.5
0
0.5
1.0
2.0
4.5
4.7 4.9 5.1
3558 G15
5.3 5.5
1.5
TYPICAL PERFORMANCE CHARACTERISTICS
Complete Charge Cycle
2400mAh Battery
TEMPERATURE (°C)
–55
1.725
FREQUENCY (MHz)
1.825
2.025
2.125
2.225
2.425
–15
25
45 125
3558 G18
1.925
2.325
–35 5
65
85
105
BAT = 4.2V
BAT = 2.7V
BAT = 3.6V
V
CC
= 0V, MODE = 0
BAT = PV
IN1
= PV
IN2
T
A
= 25°C, unless otherwise noted.
LTC3558
8
3558f
Buck Regulator Input Current vs
Temperature, Pulse Skip Mode
Buck and Buck-Boost Regulator
Enable Thresholds
vs Temperature
Buck Regulator PMOS R
DS(0N)
vs Temperature
TEMPERATURE (°C)
–55
100
INPUT CURRENT (µA)
150
250
300
350
–15
25
45 125
3558 G22
200
–35 5
65
85
105
400
FB1 = 0.85V
PV
IN1
= 4.2V
PV
IN1
= 2.7V
TEMPERATURE (°C)
–55
400
R
DS(ON)
(m)
500
700
800
900
65
1300
3558 G23
600
5
–35
85
25
–15
105
45 12
5
1000
1100
1200
PV
IN1
= 2.7V
PV
IN1
= 4.2V
Buck Regulator NMOS R
DS(0N)
vs Temperature
TEMPERATURE (°C)
–55
400
R
DS(ON)
(m)
500
700
800
900
65
1300
3558 G24
600
5
–35
85
25
–15
105
45 12
5
1000
1100
1200
PV
IN1
= 2.7V
PV
IN1
= 4.2V
TYPICAL PERFORMANCE CHARACTERISTICS
Buck Regulator Input Current vs
Temperature, Burst Mode Operation
TEMPERATURE (°C)
–55
20
INPUT CURRENT (µA)
25
35
40
45
–15
25
45 125
3558 G21
30
–35 5
65
85
105
50
FB1 = 0.85V
PV
IN1
= 4.2V
PV
IN1
= 2.7V
Buck and Buck-Boost Regulator
Undervoltage Thresholds
vs Temperature
I
LOAD
(mA)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
0.1 10 100 1000
3558 G25
0
1
V
OUT
= 1.2V
PV
IN1
= 2.7V
PV
IN1
= 4.2V
Burst Mode
OPERATION
PULSE SKIP
MODE
Buck Regulator Effi ciency vs I
LOAD
Buck Regulator Load Regulation
I
LOAD
(mA)
1
1.19
V
OUT
(V)
1.20
1.21
1.22
1.23
10 100 100
0
3558 G26
1.18
1.17
1.16
1.15
1.24
1.25
PV
IN1
= 3.6V
V
OUT
= 1.2V
Burst Mode
OPERATION
PULSE SKIP
MODE
Buck Regulator Line Regulation
TEMPERATURE (°C)
–55
2.250
INPUT VOLTAGE (V)
2.300
2.400
2.450
2.500
2.750
2.600
–15
25
45 125
3558 G19
2.350
2.650
2.700
2.550
–35 5
65
85
105
RISING
BAT = PV
IN1
= PV
IN2
FALLING
TEMPERATURE (°C)
–55
400
V
EN
(V)
500
700
800
900
1200
1100
–15
25
45 125
3558 G20
600
1000
–35 5
65
85
105
RISING
BAT = PV
IN1
= PV
IN2
= 3.6V
FALLING
2.700 3.300
3.900
4.200
3.000 3.600
PV
IN1
(V)
V
OUT
(V)
1.170
1.220
1.230
1.240
1.250
1.200
1.160
1.210
1.150
1.190
1.180
3558 G27
I
LOAD
= 200mA
T
A
= 25°C, unless otherwise noted.
LTC3558
9
3558f
Buck Regulator Start-Up Transient
Buck Regulator
Pulse Skip Mode Operation
V
OUT
500mV/DIV
EN
2V/DIV
PV
IN1
= 3.8V
PULSE SKIP MODE
LOAD = 6
50µs/DIV
3558 G28
INDUCTOR
CURRENT
I
L
= 200mA/
DIV
Buck Regulator
Burst Mode Operation
V
OUT
20mV/
DIV (AC)
SW
2V/DIV
PV
IN1
= 3.8V
LOAD = 10mA
200ns/DIV
3558 G29
INDUCTOR
CURRENT
I
L
= 50mA/
DIV
V
OUT
20mV/
DIV (AC)
SW
2V/DIV
PV
IN1
= 3.8V
LOAD = 60mA
2µs/DIV
3558 G30
INDUCTOR
CURRENT
I
L
= 60mA/
DIV
TYPICAL PERFORMANCE CHARACTERISTICS
Buck Regulator Transient
Response, Pulse Skip Mode
V
OUT
50mV/
DIV (AC)
LOAD STEP
5mA TO
290mA
PV
IN1
= 3.8V 50µs/DIV
3558 G31
INDUCTOR
CURRENT
I
L
= 200mA/
DIV
Buck Regulator Transient
Response, Burst Mode Operation
V
OUT
50mV/
DIV (AC)
LOAD STEP
5mA TO
290mA
PV
IN1
= 3.8V 50µs/DIV
3558 G32
INDUCTOR
CURRENT
I
L
= 200mA/
DIV
Buck-Boost Regulator Input
Current vs Temperature
Buck-Boost Regulator Input
Current vs Temperature
Buck-Boost Regulator PMOS
R
DS(ON)
vs Temperature
Buck-Boost Regulator NMOS
R
DS(ON)
vs Temperature
TEMPERATURE (°C)
–55
5
INPUT CURRENT (µA)
10
20
25
30
–15
25
45 125
3558 G33
15
–35 5
65
85
105
Burst Mode OPERATION
FB2 = 0.85V
PV
IN2
= 2.7V
PV
IN2
= 4.2V
TEMPERATURE (°C)
–55
100
INPUT CURRENT (µA)
150
250
300
350
500
450
–15
25
45 125
3558 G34
200
400
–35 5
65
85
105
PV
IN2
= 2.7V
PV
IN2
= 4.2V
PWM MODE
FB2 = 0.85V
–55 –15
25
45 125
–35 5
65
85
105
TEMPERATURE (°C)
R
DS(ON)
(m)
400
650
700
750
800
300
550
350
600
250
200
500
450
3558 G35
PV
IN2
= 2.7V
PV
IN2
= 4.2V
TEMPERATURE (°C)
–55
200
R
DS(ON)
(m)
300
500
600
700
1200
900
–15
25
45 125
3558 G36
400
1000
1100
800
–35 5
65
85
105
PV
IN2
= 2.7V
PV
IN2
= 4.2V
T
A
= 25°C, unless otherwise noted.
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LTC3558EUD#PBF

Mfr. #:
Buy LTC3558EUD#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management Lin USB Bat Chr w/ Buck & Buck-Boost Reg
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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