FAN5402 Fairchild Semiconductor, FAN5402 Datasheet - Page 8

• Manufacturer Part Number: FAN5402
• Description: The FAN5402 combines a highly integrated switched-mode charger, to minimize single-cell Lithium-ion (Li-ion) charging time from a USB power source, and a boost regulator to power a USB peripheral from the battery
• Manufacturer: Fairchild Semiconductor

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