ETA6102

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2.5A, 3MHz Switching Charger with Dynamic Power Path in 8-pin ESOP

DESCRIPTION

ETA6102 is a switching Li-Ion battery charger with dynamic

power-path control and input current limiting.

When a battery is connected, depending on the battery voltage,

the DC-DC switching regulator either pre-conditions, fast-

a preset voltage. It does not require an external sense resistor

for current sensing. The fast-charging current is determined by

programming ISET pin. When the battery voltage reaches the

termination voltage i.e. 4.35V, the charging path disconnects SYS

to BATT. The ETA6102 also includes a dynamic power path when

the SYS load current exceeds current limit of the DCDC regulator

the power-path to supplement the system load through the

battery.

FEATURES



Switching Charger with Power Path Management



Up to 95% DC-DC Efficiency





Up to 2.5A Max charging current



Instant on with a dead Battery or no Battery



No battery detection



No External Sense resistor



Programmable Charging Current

APPLICATIONS



Tablet, MID



Smart Phone



Power Bank

ORDERING INFORMATION

PART

PACKAGE PIN TOP MARK

ETA6102E8A

ESOP-8

ETA6102

YWWPL

TYPICAL APPLICATION

2A Switching Charger with Minimum Component Count

SYS

SW

IN

BATT

NTC

ISET

SYS

2.2uH

2.2K

500

Ω

22uF

10uF

1uF

AC_IN

STAT