RT9745A datasheet(4/16 Pages) RICHTEK

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RT9745A

DS9745A-00 August 2014

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Electrical Characteristics

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

EN Input Supply

High-Level

VENH

1.4

5.5

Input Voltage

Low-Level

VENL

0.5

ENx Pin Input Leakage Current IEN

VEN = 5.5V

A

Absolute Maximum Ratings

(Note 1)



VIN1, VIN2, EN1, EN2, VDD, VOUT1, VOUT2, SS1, SS2 -------------------------------------------------------

−0.3V to 6V



Maximum Continuous Switch Current Per Channel, IMAX ------------------------------------------------------- 6A



Maximum Pulsed Switch Current, Pulse <300

μs, 2% Duty Cycle Per Channel, IPLS -------------------- 8A



Power Dissipation, PD @ TA = 25

°C

WDFN-14TL 3x2 ------------------------------------------------------------------------------------------------------------ 3.11W



Package Thermal Resistance (Note 2)

WDFN-14TL 3x2,

θJA ------------------------------------------------------------------------------------------------------- 32.1°C/W

WDFN-14TL 3x2,

θJC ------------------------------------------------------------------------------------------------------ 6.3°C/W



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

°C



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

°C



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

−65°C to 150°C



ESD Susceptibility (Note 3)

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

CDM (Charged-Device Model) ------------------------------------------------------------------------------------------- 1kV

Recommended Operating Conditions

(Note 4)



VIN1,2, Input Voltage Range ---------------------------------------------------------------------------------------------- 0.8V to VDD



VDD, Charge Pump Input Voltage Range ------------------------------------------------------------------------------ 2.5V to 5.5V



VEN1,2, EN Voltage Range ------------------------------------------------------------------------------------------------ 0V to VDD



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

−40°C to 125°C



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

−40°C to 85°C

(VIN = 0.8V to 5.5V, TA = 25

°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Power Supplies and Currents

IOUT1 = IOUT2 = 0A

VDD Quiescent Current

(Both Channels)

IIN(VDD, ON)

VIN1,2 = VEN1,2 = VDD = 5V

115

A

IOUT1 = IOUT2 = 0A

VDD Quiescent Current

(Single Channel)

IIN(VDD, ON)

VIN1,2 = VEN1 = VDD = 5V,

VEN2 = GND

A

VDD Shutdown Current

IIN(VDD, OFF)

VEN1,2 = GND, VOUT1,2 = 0V

A

(VDD = 5V, VIN = 0.8V to VDD, TA = 25

°C, unless otherwise specified)

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