LTC4097 datasheet(14/20 Pages) LINER

Part #	LTC4097

Description	USB/Wall Adapter Standalone Li-Ion/Polymer Battery Charger

PDF	20 Pages

Scroll/Zoom	100%

Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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14 / 20 page

LTC4097

4097f

OPERATION

TRICKLE CHARGE

MODE

1/10th FULL CURRENT

CHRG STATE: PULLDOWN

SHUTDOWN

MODE

IUSBIN DROPS TO 20µA

CHRG STATE: Hi-Z

CHARGE

MODE

FULL CURRENT

CHRG STATE: PULLDOWN

CHARGE

MODE

FULL CURRENT

⇒HPWR = HIGH

1/5 FULL CURRENT

⇒HPWR = LOW

CHRG STATE: PULLDOWN

STANDBY

MODE

NO CHARGE CURRENT

CHRG STATE: Hi-Z

SHUTDOWN

MODE

IDCIN DROPS TO 20µA

CHRG STATE: Hi-Z

BAT > 2.9V

BAT < 2.9V

2.9V < BAT

BAT > 2.9V

BAT < 4.1V

IBAT < ITERMINATE

IN VOLTAGE MODE

IBAT < ITERMINATE

IN VOLTAGE MODE

POWER SELECTION

STANDBY

MODE

NO CHARGE CURRENT

CHRG STATE: Hi-Z

TRICKLE CHARGE

MODE

1/10th FULL CURRENT

CHRG STATE: PULLDOWN

SUSP

DRIVEN HIGH

SUSP

DRIVEN LOW

SUSP

DRIVEN HIGH

DCIN POWER

REMOVED

DCIN POWER

REMOVED

USBIN POWER

REMOVED OR

DCIN POWER

APPLIED

USBIN POWER

REMOVED OR

DCIN POWER

APPLIED

DCIN POWER APPLIED

ONLY USB POWER APPLIED

STARTUP

4097 F01

SUSP

DRIVEN LOW

Figure 1. LTC4097 State Diagram of a Charge Cycle

LTC4097 Datasheet(PDF) 14 Page - Linear Technology

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