UCC28C44DR 参数 Datasheet PDF下载

UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45

UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45

SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010

recommended operating conditions

MIN

Input voltage, V

DD

Output voltage range, V

OUT

Average output current, I

OUT

W

MAX

18

18

200

--20

UNIT

V

V

mA

mA

°C

Reference output current, I

OUT(ref)

W

Operating junction temperature, T

J

W

¶

--40

105

It is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time.

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

}w

Supply voltage (VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V

(MAX ICC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA

Output current, I

OUT

peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±1

A

Output energy, capacitive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

μJ

Voltage rating (COMP, CS, FB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3 V to 6.3 V

(OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3 V to 20 V

(RT/CT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3 V to 6.3 V

(VREF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V

Error amplifier output sink current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA

Total Power Dissipation at T

A

= 25°C: D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

°C/W

DGK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°C/W

P package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C/W

Operating junction temperature range, T

J

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --55°C to 150°C

Storage temperature range T

stg

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --65°C to 150°C

Lead Temperature (Soldering, 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 ground. Currents are positive into and negative out of the specified terminals. Consult the Packaging Section of

the Databook for thermal limitations and considerations of the package.

AVAILABLE OPTIONS

T

A

= T

J

MAXIMUM

DUTY CYCLE

UVLO

ON/OFF

14.5V / 9.0V

100%

--40°C to 105°C

40°C

50%

8.4V / 7.6V

7.0V / 6.6V

14.5V / 9.0V

8.4V / 7.6V

7.0V / 6.6V

14.5V / 9.0V

100%

0 C 70 C

0°C to 70°C

50%

†

SOIC-

-8

SMALL OUTLINE

(D){

UCC28C42D

UCC28C43D

UCC28C40D

UCC28C44D

UCC28C45D

UCC28C41D

UCC38C42D

UCC38C43D

UCC38C40D

UCC38C44D

UCC38C45D

UCC38C41D

PDIP-

-8

PLASTIC DIP

(P)

UCC28C42P

UCC28C43P

UCC28C40P

UCC28C44P

UCC28C45P

UCC28C41P

UCC38C42P

UCC38C43P

UCC38C40P

UCC38C44P

UCC38C45P

UCC38C41P

MSOP-

-8

SMALL OUTLINE

(DGK){

UCC28C42DGK

UCC28C43DGK

UCC28C40DGK

UCC28C44DGK

UCC28C45DGK

UCC28C41DGK

UCC38C42DGK

UCC38C43DGK

UCC38C40DGK

UCC38C44DGK

UCC38C45DGK

UCC38C41DGK

8.4V / 7.6V

7.0V / 6.6V

14.5V / 9.0V

8.4V / 7.6V

7.0V / 6.6V

D (SOIC--8) and DGK (MSOP--8) packages are available taped and reeled. Add R suffix to device type (e.g.

UCC28C42DR) to order quantities of 2500 devices per reel. Tube quantities are 75 for D packages (SOIC--8) and

80 for DGK package (MSOP--8), and 50 for P package (PDIP-8).

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