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FAN5400 Arkusz danych(PDF) 8 Page - Fairchild Semiconductor

Numer części FAN5400
Szczegółowy opis  FAN5400 / FAN5401 / FAN5402 / FAN5403 / FAN5404 / FAN5405 USB-Compliant Single-Cell Li-Ion Switching Charger
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Producent  FAIRCHILD [Fairchild Semiconductor]
Strona internetowa  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN5400 Arkusz danych(HTML) 8 Page - Fairchild Semiconductor

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© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5400 Family • Rev. 1.0.7
8
Electrical Specifications
Unless otherwise specified: according to the circuit of Figure 1; recommended operating temperature range for TJ and TA;
VBUS=5.0V; HZ_MODE; OPA_MODE=0; (Charge Mode); SCL, SDA, OTG=0 or 1.8V; and typical values are for TJ=25°C.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
Boost Mode Operation (OPA_MODE=1, HZ_MODE=0)
VBOOST
Boost Output Voltage at VBUS
2.5V < VBAT < 4.5V, ILOAD from 0 to
200mA
4.80
5.07
5.17
V
2.7V < VBAT < 4.5V, ILOAD from 0 to
200mA
4.85
5.07
5.17
IBAT(BOOST)
Boost Mode Quiescent Current
PFM Mode, VBAT=3.6V, IOUT=0
140
300
A
ILIMPK(BST)
Q2 Peak Current Limit
1100
1380
1660
mA
UVLOBST
Minimum Battery Voltage for Boost
Operation
While Boost Active
2.42
V
To Start Boost Regulator
2.58
2.70
VBUS Load Resistance
RVBUS
VBUS to PGND Resistance
Normal Operation
1500
K
Charger Validation
100
Protection and Timers
VBUSOVP
VBUS Over-Voltage Shutdown
VBUS Rising
6.09
6.29
6.49
V
Hysteresis
VBUS Falling
100
mV
ILIMPK(CHG)
Q1 Cycle-by-Cycle Peak Current
Limit
Charge Mode
2.3
A
VSHORT
Battery Short-Circuit Threshold
VBAT Rising
1.95
2.00
2.05
V
Hysteresis
VBAT Falling
100
ISHORT
Linear Charging Current
VBAT < VSHORT
20
30
40
mA
TSHUTDWN
Thermal Shutdown Threshold
(6)
TJ Rising
145
°C
Hysteresis
(6)
TJ Falling
10
TCF
Thermal Regulation Threshold
(6)
Charge Current Reduction Begins
120
°C
tINT
Detection Interval
2.1
s
t32S
32-Second Timer
(7)
Charger Enabled
20.5
25.2
28.0
s
Charger Disabled
18.0
25.2
34.0
t15MIN
15-Minute Timer
15-Minute Mode (FAN5400,
FAN5402, FAN5404, FAN5405)
12.0
13.5
15.0
min
∆tLF
Low-Frequency Timer Accuracy
Charger Inactive
–25
25
%
Notes:
4.
Negative current is current flowing from the battery to VBUS (discharging the battery).
5.
Q2 always turns on for 60ns, then turns off if current is below ISYNC.
6.
Guaranteed by design; not tested in production.
7.
This tolerance (%) applies to all timers on the IC, including soft-start and deglitching timers.


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