AT9917 datasheet(2/12 Pages) SUTEX

2 / 12 page

AT9917

Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com

Ordering Information

Device

24-Lead TSSOP

7.80x4.40mm body

1.20mm height (max)

0.65mm pitch

AT9917

AT9917TS-G

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

Absolute Maximum Ratings

Parameter

Value

IN to GND

-0.5V to +45V

DD, AVDD to GND

-0.3V to +6.0V

GATE to GND

-0.3V to (PV

DD +0.3V)

All other pins to GND

-0.3V to (AV

DD +0.3V)

Continuous power dissipation

A = +25°C)

1000mW

Junction temperature

-40°C to +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

Electrical Characteristics (Speciﬁcations are at T

A = 25

C. V

IN = 12V, PVDD = AVDD, EN = PWMD = AVDD, GATE = OPEN, CREF =

0.1μF, C

AVDD = CPVDD = 1.0μF, RT = 200kΩ, IT1 = IT2 = 100μA unless otherwise noted.)

Product Marking

24-Lead TSSOP (TS)

(top view)

REF

FDBK

IREF

COMP

PWMD

FLT

DIV

RNTC

VIN

AVDD

PVDD

GATE

PGND

GND

JTR

OVP

YY = Year Sealed

WW = Week Sealed

L = Lot Number

C = Country of Origin*

A = Assembler ID

= “Green” Packaging

*May be part of ejector pin

Top Marking

Bottom Marking

YYWW AAA

9917TS

LLLLLLLL

CCCCCCCCC

Sym

Parameter

Min

Typ

Max

Units Conditions

Input

INDC

Input DC supply voltage range

5.3

DC input voltage

INDIS

Shut-down mode supply current

100

µA

EN = 0.8V, PWMD = GND

INEN

Input current when enabled

2.0

EN = 2.0V, GATE OPEN,

PWMD = GND

Internal Regulator

Internally regulated voltage

4.65

5.0

5.35

IN = 6.0 - 40V, GATE OPEN,

PWMD = GND, I

DD = 0 - 20mA

UVLO

DD undervoltage lockout threshold

4.25

4.85

DD rising

∆UVLO AVDD undervoltage lockout

hysteresis

250

DD falling

Notes:

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

A < +125ºC. Guaranteed by design and characterization.

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

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