FAN54300 Datasheet, PDF (11/43 Pages) Fairchild Semiconductor – USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator

Electrical Specifications (Continued)
Unless otherwise specified: circuit of Figure 1, recommended operating temperature range for TJ and TA, VBUS or VIN = 5.0 V,
HZ1, HZ2, OPA_MODE = 0, (Charger Mode). SCL, SDA, OTG = 0 or 1.8 V. Typical values are for TJ = 25°C.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
Protection and Timers
VBUS Over-Voltage Shutdown
VBUSOVP
Hysteresis
VBUS Rising
VBUS Falling
6.12 6.31 6.50
V
100
mV
VIN Over-Voltage Shutdown
VINOVP
Hysteresis
VIN Rising
VIN Falling
9.5
10.0 10.5
V
100
mV
Battery Short-Circuit Threshold VBAT Rising
VSHORT
Hysteresis
VBAT Falling
2.00 2.05 2.10
V
100
ISHORT
TSHUTDWN
TCF
Short-Circuit Current
Thermal Shutdown Threshold⁽⁴⁾
Hysteresis⁽⁴⁾
Thermal Regulation Threshold⁽⁴⁾
VBAT < VSHORT
TJ Rising
TJ Falling
Charge Current Reduction Begins
30
40
50
mA
165
°C
10
120
°C
tINT
t32SEC
Detection Interval
32-Second Timer⁽⁵⁾
32-Second Mode
2.1
s
21.0
31.5
s
t15MIN 15-Minute Timer
15-Minute Mode
12.0
13.5 15.0
min
∆tLF Low Frequency Timer Accuracy Charger Inactive
–25
25
%
Notes:
2. Refers to negative inductor current. At lower battery charging current, of about 20 mA, non-synchronous switching
operation commences.
3. Q2 and Q6 always turn on for »60 ns and then turn off if the current is below ISYNC.
4. Guaranteed by design.
5. This tolerance applies to all timers on the IC, including soft-start and deglitching timers.
© 2010 Fairchild Semiconductor Corporation
FAN54300 • Rev. 1.0.4
11
www.fairchildsemi.com