LTC3553 Linear Technology Corporation, LTC3553 Datasheet - Page 3

• Manufacturer Part Number: LTC3553
• Description: Micropower USB Power Manager
• Manufacturer: Linear Technology Corporation

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POWER MANAGER ELECTRICAL CHARACTERISTICS
The
V
SYMBOL
I
I
Input Power Supply
V
I
V
V
R
Battery Charger
V
I
V
V
h
I
V
ΔV
t
t
h
R
T
NTC
V
V
V
I
BVINQ
VINLDOQ
BUS(LIM)
CHG
TRKL
TERM
BADBAT
NTC
PROG
C/10
LIM
COLD
BUS
BUS
UVLO
DUVLO
ON_ILIM
FLOAT
PROG
PROG,TRKL
TRKL
ON_CHG
HOT
DIS
RECHRG
l
= 5V, V
denotes specifi cations that apply over the full operating temperature range, otherwise specifi cations are at T
PARAMETER
BVIN Input Current
V
Input Supply Voltage
Total Input Current
V
V
Lockout
Input Current Limit Power FET
On-Resistance (Between V
V
Constant-Current Mode Charge Current
PROG Pin Servo Voltage
PROG Pin Servo Voltage in Trickle Charge V
Ratio of I
Trickle Charge Current
Trickle Charge Threshold Voltage
Recharge Battery Threshold Voltage
Safety Timer Termination Period
Bad Battery Termination Time
End-of-Charge Indication Current Ratio
Battery Charger Power FET
On-Resistance (Between V
Junction Temperature in Constant
Temperature Mode
Cold Temperature Fault Threshold
Voltage
Hot Temperature Fault Threshold Voltage Falling NTC Voltage
NTC Disable Threshold Voltage
NTC Leakage Current
BAT
INLDO
BUS
BUS
BAT
Buck Shutdown
Buck Enabled, Standby Mode
Buck Enabled
LDO Shutdown
LDO Enabled, Standby Mode
LDO Enabled
= 3.8V, HPWR = SUSP = BUCK_ON = LDO_ON = 0V, R
Regulated Output Voltage
Undervoltage Lockout
to BAT Differential Undervoltage
Input Current
BAT
to PROG Pin Current
BUS
OUT
and V
and BAT)
OUT
)
CONDITIONS
V
V
HPWR = 0V (100mA)
HPWR = 5V (500mA)
Rising Threshold
Falling Threshold
Rising Threshold
Falling Threshold
0 ≤ T
R
V
V
V
Threshold Voltage Relative to V
Timer Starts when V
V
(Note 6)
I
Rising NTC Voltage
Hysteresis
Hysteresis
Falling NTC Voltage
Hysteresis
V
BAT
BUS
BUS
BAT
BAT
BAT
BAT
BAT
NTC
PROG
BUCK_ON = 0V
BUCK_ON = STBY = 3.8V
BUCK_ON = 3.8V, STBY = 0V
LDO_ON = 0V
LDO_ON = STBY = 3.8V
LDO_ON = 3.8V, STBY = 0V
= 200mA
A
< V
< V
Rising
Falling
< V
= 0V, V
= 0V, V
= V
≤ 85°C
= 1.87k, 0 ≤ T
TRKL
TRKL
TRKL
BUS
BVIN
INLDO
= 5V
= 3.8V, I
= 3.8V, I
A
BAT
PROG
≤ 85°C
= V
SW
LDO
FLOAT
= 1.87k, STBY = high, unless otherwise noted.
= 0 (Note 8)
= 0 (Note 10)
FLOAT
– 50mV
l
l
l
0.085
4.179
4.165
MIN
4.35
400
380
–50
–75
3.5
2.6
3.2
0.4
1.2
80
30
75
34
0
–100
TYP
0.01
0.01
2.75
450
400
200
350
750
220
110
3.8
3.6
4.2
4.2
2.9
0.5
1.5
0.1
0.1
0.1
0.1
1.3
1.3
1.7
22
90
50
40
76
35
50
1
4
LTC3553
A
= 25°C,
4.221
4.235
MAX
0.115
–125
0.63
500
300
420
100
5.5
3.9
2.2
38
50
77
36
50
1
3
1
1
1
3
5
mA/mA
mA/mA
%V
%V
%V
%V
%V
UNITS
3
Hour
Hour
3553f
mΩ
mΩ
BUS
BUS
BUS
BUS
BUS
mA
mA
mV
mV
mV
mA
mA
mV
mV
μA
μA
μA
μA
μA
μA
nA
°C
V
V
V
V
V
V
V
V