LTC4066EPFPBF View Datasheet(PDF) - Linear Technology

Part Name

Description

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LTC4066EPFPBF

USB Power Controller and Li-Ion Linear Charger with Low Loss Ideal Diode

Linear Technology 

LTC4066/LTC4066-1

OPERATION

Table 1. Operating Modes—PowerPath States

Current Limited Input Power (IN to OUT)

WALL PRESENT SHUTDOWN SUSPEND

Y

X

X

VIN > 3.8V

X

X

Y

X

X

X

X

Y

X

X

X

X

N

X

X

X

X

X

X

X

X

N

N

N

Y

VIN > (VOUT + 100mV)

X

X

X

X

N

X

Y

VIN > (VBAT + 100mV)

X

X

X

X

X

N

Y

CURRENT LIMIT ENABLED

N

N

N

N

N

N

Y

Battery Charger (OUT to BAT)

WALL PRESENT SHUTDOWN

X

Y

X

X

X

X

X

N

SUSPEND

X

X

X

X

VOUT > 4.35V

X

N

X

Y

VOUT > (VBAT + 100mV)

X

X

N

Y

CHARGER ENABLED

N

N

N

Y

Ideal Diode (BAT to OUT)

WALL PRESENT SHUTDOWN SUSPEND VBAT > 2.8V

VBAT > VOUT

VIN

DIODE ENABLED

X

Y

X

X

X

X

N

X

X

X

N

X

X

N

X

X

X

X

N

X

N

X

N

X

Y

Y

X

Y

Table 2. Operating Modes—Pin Currents vs Programmed Currents (Powered from IN)

PROGRAMMING

OUTPUT CURRENT

BATTERY CURRENT

ICL = ICHG

ICL > ICHG

ICL < ICHG

IOUT < ICL

IOUT = ICL = ICHG

IOUT > ICL

IOUT < (ICL – ICHG)

IOUT > (ICL – ICHG)

IOUT = ICL

IOUT > ICL

IOUT < ICL

IOUT > ICL

IBAT = ICHG – IOUT

IBAT = 0

IBAT = ICL – IOUT

IBAT = ICHG

IBAT = ICL – IOUT

IBAT = 0

IBAT = ICL – IOUT

IBAT = ICL – IOUT

IBAT = ICL – IOUT

INPUT CURRENT

IIN = IQ + ICL

IIN = IQ + ICL

IIN = IQ + ICL

IIN = IQ + ICHG + IOUT

IIN = IQ + ICL

IIN = IQ + ICL

IIN = IQ + ICL

IIN = IQ + ICL

IIN = IQ + ICL

4066fc

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