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ETA6002 Datasheet Preview

ETA6002 Datasheet

3MHz Switching Charger

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ETA6002
2.5A, 3MHz Switching Charger with Dynamic Power Path in 8-pin ESOP
DESCRIPTION
ETA6002 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 or just regulates a system voltage (VSYS) to
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. 4.2V, the charging path disconnects SYS
to BATT. The ETA6002 also includes a dynamic power path when
the SYS load current exceeds current limit of the DCDC regulator
internally set, the SYS voltage falls below VBATT, ETA6002 turns on
the power-path to supplement the system load through the
battery.
FEATURES
APPLICATIONS
Switching Charger with Power Path Management
Up to 95% DC-DC Efficiency
50mΩ Power Path MOSFET
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
Tablet, MID
Smart Phone
Power Bank
ORDERING INFORMATION
PART PACKAGE PIN
ETA6002E8A
ESOP-8
TOP MARK
ETA6002
YWWPL
TYPICAL APPLICATION
AC_IN
IN
10uF
SYS
2.2K STAT
ISET
500Ω
NTC
SW
2.2uH
SYS
22uF
BATT
1uF
2A Switching Charger with Minimum Component Count
www.ETAsolution.com
Outperform with Efficiency
Proprietary Information DO NOT Distribute
1




ETA

ETA6002 Datasheet Preview

ETA6002 Datasheet

3MHz Switching Charger

No Preview Available !

ETA6002
PIN CONFIGURATION
SW 1
PGND 2
NTC 3
STAT 4
9
AGND
ESOP8
8 IN
7 SYS
6 BATT
5 ISET
ABSOLUTEMAXIMUM RATINGS
(Note: Exceeding these limits may damage the device. Exposure to absolute maximum
rating conditions for long periods may affect device reliability.)
IN, BATT Voltage ..........................................................0.3V to 6V
All Other Pin Voltage ..................................VIN0.3V to VIN+0.3
SW, SYS, BATT to ground current……………...Internally limited
Operating Temperature Range ……………….....…–40°C to 85°
Storage Temperature Range ……………………….–55°C to 150°C
Thermal Resistance
θ JA
ESOP8……………………………………………………….50 ........oC/W
ELECTRICAL CHACRACTERISTICS
(VIN = 5V, unless otherwise specified. Typical values are at TA = 25oC.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
IN INPUT
INPUT Range
INPUT UVLO
INPUT Operating Current
Rising, Hys=500mV
Switcher Enable, Switching
Switcher Enable, No Switching
4.4
4.35
5
70
5.5 V
V
mA
μA
BATT to INPUT leakage Current
Input Floating
0 5 μA
DC-DC and SYS OUTPUT
VSYSMIN
VSYSMAX
ISYS=1A, Default
3.6 V
4.5 V
Load Regulation
40 mV/A
Line Regulation
Switching Frequency
VIN = 4.75 to 5.25V
0.04 %/V
3 MHz
Max duty
100 %
HIGHSIDE MOS RDSON
LOWSIDE MOS RDSON
HIGHSIDE Current limit
ISW =500mA
ISW =500mA
100 mΩ
60 mΩ
3.5 A
SYS UVLO
Thermal Shutdown
Falling, Hys=200mV
Rising, Hys=30oC
2.25 V
160 oC
POWER PATH Management
BATT TO SYS RDSON
BATTERY CHARGER
50 mΩ
Battery CV voltage
Charger Restart Threshold
IBAT =0mA, default
From DONE to Fast Charge
4.16 4.2 4.24 V
-200 mV
Battery Pre-condition Voltage
VBAT Rising Hys=180mV
2.9 V
www.ETAsolution.com
Outperform with Efficiency
Proprietary Information DO NOT Distribute
2


Part Number ETA6002
Description 3MHz Switching Charger
Maker ETA
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ETA6002 Datasheet PDF





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