RT9503 datasheet(5/15 Pages) RICHTEK

5 / 15 page

RT9503

DS9503-03 April 2011

www.richtek.com

Absolute Maximum Ratings

(Note 1)

Supply Input Voltage, ACIN ---------------------------------------------------------------------------------------------

−0.3V to 18V

Supply Input Voltage, USB ----------------------------------------------------------------------------------------------

−0.3V to 7V

CHG_SB, AC_PGOOD, AC_ON ---------------------------------------------------------------------------------------

−0.3V to 18V

Other Pins -------------------------------------------------------------------------------------------------------------------

−0.3V to 5.5V

Power Dissipation, PD @ TA = 25

°C

WQFN-16L 3x3 ------------------------------------------------------------------------------------------------------------ 1.667W

Package Thermal Resistance (Note 2)

WQFN-16L 3x3,

θJA ------------------------------------------------------------------------------------------------------- 60°C/W

WQFN-16L 3x3,

θJC ------------------------------------------------------------------------------------------------------ 8.2°C/W

Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260

°C

Junction Temperature ----------------------------------------------------------------------------------------------------- 150

°C

Storage Temperature Range --------------------------------------------------------------------------------------------

−65°C to 150°C

ESD Susceptibility (Note 3)

HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV

MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V

Electrical Characteristics

(ACIN = USB = 5V, TA = 25

°C, unless otherwise specification)

To be continued

Recommended Operating Conditions

(Note 4)

Supply Input Voltage Range, ACIN ------------------------------------------------------------------------------------ 4.5V to 12V

Supply Input Voltage Range, USB ------------------------------------------------------------------------------------- 4.1V to 6V

Junction Temperature Range --------------------------------------------------------------------------------------------

−20°C to 125°C

Ambient Temperature Range --------------------------------------------------------------------------------------------

−20°C to 85°C

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Supply Input

ACIN UVP R ising Threshold Voltage VUV_ACIN

4.1

4.3

4.5

USB UVP Rising Threshold Voltage VUV_USB

VBATT = 3V

3.7

3.9

4.1

ACIN/U SB UVP H ysteresis

VUV_HYS

VBATT = 3V

100

140

ACIN/U SB Standby Current

ISTBY

VBATT = 4.5V

300

500

ACIN/U SB Shutdown Current

ISHDN

VEN = High

100

BATT Sleep Leakage Current

ISLEEP

VACIN = 4V, VUSB = 4V,

VBATT = 4.5V

Voltage Regulation

BATT Regulation Voltage

VREG

IBATT = 60mA

4.158

4.2

4.242

ACIN MOSFET Dropout

VBATT = 4V, ICHG = 1A

400

500

620

ACIN MOSFET Dropout

VBATT = 4V, IUSB = High

500

650

800

Current R egulation

ISETA Set Voltage

(Fast Charge Phase)

VISETA_FCHG

VBATT = 3.5V

2.43

2.48

2.53

Full Charge Setting Range

ICHG_AC

100

1000

AC Charge C urrent Accuracy

ICHG_AC

VBATT = 3.8V, RISET = 1.5kΩ

500

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