RT9526 datasheet(5/14 Pages) RICHTEK

5 / 14 page

RT9526

DS9526-01 April 2011

www.richtek.com

Absolute Maximum Ratings

(Note 1)

Supply Voltage, VIN ------------------------------------------------------------------------------------------------------

−0.3V to 28V

CHG_SB, PGB Pins ------------------------------------------------------------------------------------------------------

−0.3V to 7V

Others ------------------------------------------------------------------------------------------------------------------------

−0.3V to 6V

Power Dissipation, PD @ TA = 25

°C

SOT-23-6 -------------------------------------------------------------------------------------------------------------------- 0.4W

WDFN-8L 2x2 -------------------------------------------------------------------------------------------------------------- 0.606W

WDFN-8L 2x3 -------------------------------------------------------------------------------------------------------------- 0.833W

Package Thermal Resistance (Note 2)

SOT-23-6,

θJA --------------------------------------------------------------------------------------------------------------- 250°C/W

WDFN-8L 2x2,

θJA --------------------------------------------------------------------------------------------------------- 165°C/W

WDFN-8L 2x2,

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

WDFN-8L 2x3,

θJA --------------------------------------------------------------------------------------------------------- 120°C/W

WDFN-8L 2x3,

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

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

°C

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

°C

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

−65°C to 150°C

Recommended Operating Conditions

(Note 3)

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

−40°C to 125°C

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

−40°C to 85°C

Electrical Characteristics

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

VIN POR Rising Threshold

Voltage

VPOR_H

3.4

3.8

4.2

VIN POR Falling Threshold

Voltage

VPOR_H

3.1

3.5

3.9

VIN

− VBATT VOS Rising

VOS_H

150

VIN

− VBATT VOS Falling

VPOR_L

VIN Standby Current

VBATT = 4.5V

300

500

μA

BATT Sleep Leakage Current

ISLEEP

μA

Battery Regulation Voltage

VREG

4.158

4.2

4.242

VIN Power FET On-Resistance RDS(ON)

IBATT = 0.5A

0.6

ISET Set Voltage (Fast Charge

Phase)

VISET

1.21

Charge Current Accuracy

RISET = 29.4kΩ

135

150

165

BATT Pre-Charge Threshold

VCHG_PRE

2.7

2.8

2.9

BATT Pre-Charge Threshold

Hysteresis

ΔVCHG_PRE

100

150

Pre-Charge Current

ICHG_PRE

16.7

21.3

Logic-High VIH

1.5

ENB Input

Threshold Voltage

Logic-Low VIL

VIN = 4.2V to 24V

0.4

(VIN = 4.5V, TA = 25

°C unless otherwise specified)

To be continued

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