UCC29002

UCC29002/1

UCC39002

SLUS495H − SEPTEMBER 2001 − REVISED AUGUST 2007

2

www.ti.com

DESCRIPTION (continued)

The functionality of the UCC29002/1 differs slightly compared to the UCC39002. The UCC39002 will force the

maximum adjustment range at start up to quickly engage load sharing; the UCC29002/1 ADJ amplifier will

operate in a linear mode during start up, resulting in a more gradual load sharing at turn on.

During transient conditions while adding or removing power supplies, the UCC39002 protects the system by

keeping the load share bus disconnected from the remaining supplies. By disabling the adjust function in case

a short of the load share bus occurs to either GND or the supply rail, it also provides protection for the system

against erroneous output voltage adjustment.

The UCC39002 also meets Intel’s SSI (Server System Infrastructure) loadshare specifications of a single-line

load share bus and scalable load share voltage for any level of output currents.

The UCC39002 family is offered in 8-pin MSOP (DGK), SOIC (D), and PDIP (P) packages.

−0.3 V to 15 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−0.3 V to 13.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−55

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

300

°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 under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

§ All voltages are with respect to GND. Currents are positive into, negative out of the specified terminal.

CSO

LS

EAO

ADJ

8

7

6

5

1

2

3

4

CS−

CS+

VDD

GND

SOIC (D) OR MSOP (DGK) PACKAGE

(TOP VIEW)

1

2

3

4

8

7

6

5

CS−

CS+

VDD

GND

CSO

LS

EAO

ADJ

PDIP (P) PACKAGE

(TOP VIEW)

AVAILABLE OPTIONS

PACKAGED DEVICES

TA = TJ

SOIC−8

(D)†

MSOP−8

(DGK)†

PDIP−8

(P)

−40

°C to 105°C

UCC29002D

UCC29002DGK

UCC29002P

−40

°C to 105°C

UCC29002D/1

UCC29002DGK/1

NA

0

°C to 70°C

UCC39002D

UCC39002DGK

UCC39002P

† The D and DGK packages are available taped and reeled. Add R suffix to device type (e.g.

UCC39002DR) to order quantities of 2,500 devices per reel.