2

AT9933

Supertex inc.

www.supertex.com

Doc.# DSFP-AT9933

B061710

Ordering Information

Device

8-Lead SOIC

4.90x3.90mm body

1.75mm height (max)

1.27mm pitch

AT9933

AT9933LG-G

-G indicates package is RoHS compliant (‘Green’)

Absolute Maximum Ratings

Parameter

Value

V

-0.5V to +75V

CS1, CS2, PWMD, GATE to GND

-0.3V to (V

V

DD(MAX)

12V

8-Pin SOIC

700mW

Junction temperature

+150°C

Storage temperature range

-65°C to +150°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause

permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in

the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

Pin Configuration

REF

CS2

VDD

PWMD

VIN

CS1

GND

GATE

8

7

6

5

1

2

3

4

Sym

Parameter

Min

Typ

Max

Units Conditions

Input

V

INDC

*

(2)

-

75

V

DC input voltage

I

INSD

-

-

0.5

1.0

mA

PWMD connected to GND,

V

Internal Regulator

V

DD

Internally regulated voltage

*

7.0

7.5

9.0

V

V

500pF capacitor at GATE,

PWMD = GND

UVLO

V

*

6.35

6.70

7.05

V

V

∆UVLO V

-

-

500

-

mV

---

Notes:

1. Also limited by package power dissipation limit, whichever is lower.

2. Depends on the current drawn by the part - see application section.

*

Specifications apply over the full operating ambient temperature range of -40ºC < T

Thermal Resistance

Package

θ

ja

8-Lead SOIC

Y = Last Digit of Year Sealed

WW = Week Sealed

L = Lot Number

= “Green” Packaging

YWW

9933

LLLL

Product Marking

8-Lead SOIC (LG)

8-Lead SOIC (LG)

(top view)

Package may or may not include the following marks: Si or