ETA6005

www.ETAsolution.com

Outperform with Efficiency

1

2.5A / 4.35V, 3MHz Switching Charger with Dynamic Power Path Management

DESCRIPTION

ETA6005 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-charges the battery

charging current is determined by programming ISET1 or ISET2 pin, depending on the state of the USB_DET. If USB_DET is high, indicating n

valid USB inputis present, the fastcharge currentis setbyISET2; otherwise, itis setbyISET1. When the battery voltage reaches the termination

voltage i.e. 4.35V, the charging path disconnects SYS to BATT. The ETA6005 also includes a dynamic power path when the SYS load current

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



4.35V charging termination voltage



Instant on with a dead Battery or no Battery



No battery detection



No External Sense resistor



Programmable USB and AC IN Charging Current

APPLICATIONS



Tablet, MID



Smart Phone



Power Bank

ORDERING INFORMATION

PART

PACKAGE PIN TOP MARK

ETA6005Q3Q-T

QFN3X3-16

ETA+42

TYPICAL APPLICATION

2A Switching Charger with Dynamic Power Path

SYS

SW

PGND

IN

BATT

NTC

ISET1

ISET2

USB_DET

ENB

SYS

SYSTEM

LOAD

2.2uH

2.2K

2K

Ω

500

Ω

5V INPUT

22uF

10uF

1uF