RT7205AL datasheet(8/36 Pages) RICHTEK

8 / 36 page

RT7205A

DS7205A-00

February 2018

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

VDD Section

VDD Turn-On Threshold

Voltage

VVDD_ON

2.9

3.0

3.1

VDD Turn-Off Threshold

Voltage

VVDD_OFF

2.55

2.7

2.85

VDD Turn-On/-Off Hysteresis

VVDD_HYS

0.3

VDD Start-Up Current

IDD_START

VDD = 2.6V

200

300

µA

VDD Operating Current

IDD_OP

SR driver is disabled

VDD Sleep-Mode Current

IDD_SLEEP

In sleep mode

900

µA

VDD Over-Voltage Protection

Threshold Voltage

VVDD_OVP

14.5

15.5

16.5

VDD Over-Voltage Protection

Threshold Voltage for Disable

SR Driver

VVDD_OVP_SR

With respect to VREF_CV

104.5

110

115.5

VDD Over-Voltage Protection

Deglitch Time

tD_VDDOVP

(Note 5)

µs

MCU Operating Frequency

fOSC_MCU

VDD = 5V

20.5

21.6

22.7

MHz

(TA = 25

°C, unless otherwise specified)

Electrical Characteristics

Recommended Operating Conditions

(Note 4)

l Supply Input Voltage, VDD --------------------------------------------------------------------------------------------- 3V to 13V

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

−40°C to 125°C

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

−40°C to 85°C

Absolute Maximum Ratings

(Note 1)

l USBP to GND -------------------------------------------------------------------------------------------------------------

−0.3V to 25V

l VDD, OPTO, BLD, OVP to GND --------------------------------------------------------------------------------------

−0.3V to 16.5V

l V9, VG to GND ------------------------------------------------------------------------------------------------------------

−0.3V to 13V

l V5, VCP, VFB, IFB, V_TR, RT, CC1, CC2, D+, D-, CS+, CS- to GND ---------------------------------------

−0.3V to 6.5V

l V2 to GND ------------------------------------------------------------------------------------------------------------------

−0.3V to 2.5V

l Power Dissipation, PD @ TA = 25

°C

WQFN-24L 4x4 ----------------------------------------------------------------------------------------------------------- 3.57W

l Package Thermal Resistance

(Note 2)

WQFN-24L 4x4,

θJA ------------------------------------------------------------------------------------------------------ 28°C/W

WQFN-24L 4x4,

θJC ----------------------------------------------------------------------------------------------------- 7.1°C/W

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

°C

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

°C

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

−65°C to 150°C

l ESD Susceptibility

(Note 3)

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

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