ETA9742

www.etasolution.com

2

Powering Minds of the Smart

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

(Note: Exceeding these limits maydamage the device. Exposure to absolute maximum

rating conditions for long periods may affect device reliability.)

OUT, SW Voltage ..........................................................–0.3V to 6V

All Other Pin Voltage ..................................................–0.3V to 6V

SW to ground current……………………..…………...Internally limited

Operating Temperature Range …………………....…–40°C to 85°C

Storage Temperature Range ……..……….………….–55°C to 150°C

Thermal Resistance

JA

Jc

ESOP8 …………………………………………...10……………50............ °C/W

Lead Temperature (Soldering, 10ssec) ……………………….260°C

ESD HBM (Human Body Mode) …………….………………..………….2KV

ESD MM (Machine Mode) ……………………..………………………….200V

ELECTRICAL CHACRACTERISTICS

(VIN = 5V, unless otherwise specified. Typical values are at TA = 25oC.)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

BUCK MODE

USB Range

4.5

5.5

V

USB UVLO Voltage

Rising, Hys=500mV

4.5

V

USB Operating Current as BUCK

Switcher Enable, Switching

5

mA

Switcher Enable, No Switching

800

μA

BATTERY CHARGER

Battery CV Voltage

IBAT =0mA, default

4.17

4.21

4.25

V

Charger Restart Threshold

From DONE to Fast Charge

-160

mV

Battery Pre-Condition Voltage

VBATRising Hys=250mV

2.8

V

Pre-Condition Charge Current

200

mA

Fast Charge Current

Riset=56K

3

A

Riset=91K

2

A

Charge Termination Current

200

mA

Charge Termination Blanking time

16

S

BOOST MODE

BATT Ok Threshold

Rising, HYS=0.4 V

3.2

V

Output Voltage Range

Iout=0

5.05

5.1

5.15

V

Quiescent Current At BATT

Vbat=3.6V

80

μA

Switching Frequency

VIN<4.3V

550

650

750

KHz

Inductor Peak Current Limit

5.0

A

Maximum Duty Cycle

90

%

High side Pmos Rdson

ISW =500mA

75

mΩ

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