RT7302GS datasheet(7/15 Pages) RICHTEK

7 / 15 page

RT7302

DS7302-03 May 2015

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Electrical Characteristics

(VDD = 15V, TA = 25

°C, unless otherwise specification)

Absolute Maximum Ratings

(Note 1)



HV to GND -----------------------------------------------------------------------------------------------------------

−0.3V to 500V



VDD to GND ---------------------------------------------------------------------------------------------------------

−0.3V to 30V



GD to GND -----------------------------------------------------------------------------------------------------------

−0.3V to 20V



MULT, CS, ZCD, COMP to GND --------------------------------------------------------------------------------

−0.3V to 6V



Power Dissipation, PD @ TA = 25

°C

SOP-8 ----------------------------------------------------------------------------------------------------------------- 0.48W



Package Thermal Resistance (Note 2)

SOP-8,

θJA ----------------------------------------------------------------------------------------------------------- 206.9°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) (Except HV pin) ----------------------------------------------------------------- 2kV

MM (Machine Model) ---------------------------------------------------------------------------------------------- 200V

Recommended Operating Conditions

(Note 4)



Supply Input Voltage, VDD ---------------------------------------------------------------------------------------- 12V to 25V



COMP Voltage, VCOMP -------------------------------------------------------------------------------------------- 0.7V to 4.3V (Note 5)



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

−40°C to 125°C

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

HV Start-up Section

HV Start-up Average Current

IHV_ST

VDD < VTH_ON, VHV = 100V

0.8

Off State Leakage Current

VDD = VTH_ON + 1V, VHV = 500V

A

VDD Supply Current and Protections Section

VDD OVP Threshold Voltage

VOVP

25.5

28.5

VDD OVP De-bounce Time

(Note 6)

s

Rising UVLO Threshold Voltage VTH_ON

Falling UVLO Threshold Voltage VTH_OFF

Operating Supply Current

IDD_OP

IZCD = 0, GD Open

3.5

Start-up Current

VDD = VTH_ON  1V

A

ZCD Section

Lower Clamp Voltage

IZCD = 0 to 2.5mA

0.3

ZCD OVP Threshold Voltage

VZCD_OVP

At the Knee Point

(Note 6)

2.8

3.1

3.4

Dimming Control Section

Enable Threshold Voltage

VMULT_EN

VMULT Rising

150

Disable Threshold Voltage

VMULT_DIS VMULT Falling

100

De-bounce Time

(Note 6)

s

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