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LTC4066 Datasheet(PDF) 13 Page - Linear Technology

Part # LTC4066
Description  USB Power Controller and Li-Ion Linear Charger with Low Loss Ideal Diode
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4066 Datasheet(HTML) 13 Page - Linear Technology

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LTC4066/LTC4066-1
13
4066fc
OPERATION
Table 1. Operating Modes—PowerPath States
Current Limited Input Power (IN to OUT)
WALL PRESENT
SHUTDOWN
SUSPEND
VIN > 3.8V
VIN > (VOUT + 100mV)
VIN > (VBAT + 100mV)
CURRENT LIMIT ENABLED
YX
X
X
X
X
N
XY
X
X
X
X
N
XX
Y
X
X
X
N
XX
X
N
X
X
N
XX
X
X
N
X
N
XX
X
X
X
N
N
NN
N
Y
Y
Y
Y
Battery Charger (OUT to BAT)
WALL PRESENT
SHUTDOWN
SUSPEND
VOUT > 4.35V
VOUT > (VBAT + 100mV)
CHARGER ENABLED
XY
X
X
X
N
XX
X
N
X
N
XX
X
X
N
N
XN
X
Y
Y
Y
Ideal Diode (BAT to OUT)
WALL PRESENT
SHUTDOWN
SUSPEND
VBAT > 2.8V
VBAT > VOUT
VIN
DIODE ENABLED
XY
X
X
X
X
N
XX
X
N
X
X
N
XX
X
X
N
X
N
XN
X
Y
Y
X
Y
Table 2. Operating Modes—Pin Currents vs Programmed Currents (Powered from IN)
PROGRAMMING
OUTPUT CURRENT
BATTERY CURRENT
INPUT CURRENT
ICL = ICHG
IOUT < ICL
IOUT = ICL = ICHG
IOUT > ICL
IBAT = ICHG – IOUT
IBAT = 0
IBAT = ICL – IOUT
IIN = IQ + ICL
IIN = IQ + ICL
IIN = IQ + ICL
ICL > ICHG
IOUT < (ICL – ICHG)
IOUT > (ICL – ICHG)
IOUT = ICL
IOUT > ICL
IBAT = ICHG
IBAT = ICL – IOUT
IBAT = 0
IBAT = ICL – IOUT
IIN = IQ + ICHG + IOUT
IIN = IQ + ICL
IIN = IQ + ICL
IIN = IQ + ICL
ICL < ICHG
IOUT < ICL
IOUT > ICL
IBAT = ICL – IOUT
IBAT = ICL – IOUT
IIN = IQ + ICL
IIN = IQ + ICL



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