LTC3559 Linear Technology, LTC3559 Datasheet - Page 4

• Manufacturer Part Number: LTC3559
• Description: Linear USB Battery Charger
• Manufacturer: Linear Technology

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LTC3559
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: T
dissipation P
Note 3: The LTC3559 is guaranteed to meet specifi cations from 0°C to
85°C. Specifi cations over the –40°C to 85°C operating temperature range
TYPICAL PERFORMANCE CHARACTERISTICS
4
T
500
495
490
485
450
445
440
480
475
470
465
460
455
J
10
= T
9
8
7
6
5
4
3
2
1
0
–55
4.3
Suspend State Supply and BAT
Currents vs Temperature
Battery Charge Current
vs Supply Voltage
J
A
V
BAT = 4.2V
SUSP = 5V
EN1 = EN2 = 0V
V
HPWR = 5V
R
EN1 = EN2 = 0V
is calculated from the ambient temperature T
CC
CC
+ (P
PROG
4.4
–35
D
= 5V
= 5V
4.5 4.6
according to the following formula:
D
= 1.74k
• θ
–15
JA
TEMPERATURE (°C)
4.7 4.8
°C/W)
5
V
I
I
CC
VCC
BAT
4.9
(V)
25
5.0
5.1
45
5.2
5.3
65
3559 G01
3559 G04
5.4 5.5
85
A
4.18
4.24
4.23
4.22
4.21
4.20
4.19
4.17
4.16
500
450
400
350
300
250
200
150
100
and power
50
0
–55
2
Battery Regulation (Float)
Voltage vs Temperature
Battery Charge Current
vs Battery Voltage
V
V
R
CC
CC
PROG
–35
= 5V
= 5V
2.5
= 1.74k
–15
TEMPERATURE (°C)
3
5
V
BAT
HPWR = 5V
HPWR = 0V
are assured by design, characterization and correlation with statistical
process controls.
Note 4: V
or any current delivered to the BAT pin. Total input current is equal to this
specifi cation plus 1.00125 • I
Note 5: I
with indicated PROG resistor.
Note 6: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
(V)
25
3.5
45
C/10
CC
4
supply current does not include current through the PROG pin
is expressed as a fraction of measured full charge current
65
3559 G02
3559 G05
85
4.5
4.205
4.200
4.195
4.190
4.185
4.180
4.175
4.170
4.165
4.160
4.155
4.150
BAT
500
450
400
350
300
250
200
150
100
50
0
–55
where I
0
Battery Regulation (Float) Voltage
vs Battery Charge Current,
Constant Voltage Charging
Battery Charge Current vs
Ambient Temperature in Thermal
Regulation
V
HPWR = 5V
R
EN1 = EN2 = 0V
V
HPWR = 5V
R
EN1 = EN2 = 0
CC
CC
PROG
100
PROG
–35
= 5V
= 5V
200
BAT
–15
= 845Ω
= 1.74k
300
is the charge current.
TEMPERATURE (°C)
5
400
I
BAT
25
500
(mA)
45
600
65
700
85 105
800
900
3559 G06
3559 G03
3559f
1000
125