LM117 LM317

Max Thermal

Description

Niveau: Secondaire, Lycée, Terminale
LM117/217 LM317 1.2V TO 37V VOLTAGE REGULATOR November 1999 n OUTPUT VOLTAGE RANGE : 1.2 TO 37V n OUTPUT CURRENT IN EXCESS OF 1.5A n 0.1% LINE AND LOAD REGULATION n FLOATING OPERATION FOR HIGH VOLTAGES n COMPLETE SERIES OF PROTECTIONS : CURRENT LIMITING, THERMAL SHUTDOWN AND SOA CONTROL DESCRIPTION The LM117/LM217/LM317 are monolithic integrated circuit in TO-220, ISOWATT220, TO-3 and D2PAK packages intended for use as positive adjustable voltage regulators. They are designed to supply more than 1.5A of load current with an output voltage adjustable over a 1.2 to 37V range. The nominal output voltage is selected by means of only a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators. TO-3 TO-220 D2PAK ABSOLUTE MAXIMUM RATING Symbol Parameter Value Unit Vi-o Input-output Differential Voltage 40 V IO Output Current Intenrally Limited Top Operating Junction Temperature for: LM117 LM217 LM317 -55 to 150 -25 to 150 0 to 125 oC oC oC Ptot Power Dissipation Internally Limited Tstg Storage Temperature - 65 to 150 oC THERMAL DATA Symbol Parameter TO-3 TO-220 ISOWATT220 D2PAK Unit Rthj- ca se Rthj-amb Thermal Resistance Junction-case Max Thermal Resistance Junction-ambient Max 4 35 3 50 4 60 3 62.5 oC/W oC/W ISOWATT220 ? 1/11

• lm117


• load regulation


• temperature stability


• junction temperature


• iadj


• output voltage


• constant current


• input short

Sujets

• Première
• Régulation
• Thermal
• Load regulation
• Junction temperature
• Constant current

Informations

• Publié par: profil-zyan-2012
• Nombre de lectures: 43
• Langue: Français

Extrait

[

LM117/217 LM317

o C

o C o C o C

2 D PAK

Unit V

Value 40 I ntenr ally Limite d -55 to 150 -25 to 150 0 to 125 I nternally Limite d - 65 to 150

ISOW ATT220 4 60

2 D PAK 3 62. 5

Unit o C/W o C/W

1.2V TO 37V VOLTAGE REGULATOR

TO-3

TO-220

Max Max

November 1999

TO-220 3 50

TO-3 4 35

DESCRIPTION The LM117/LM217/LM317 are monolithic integrated circuit in TO-220, ISOWATT220, TO-3 2 and D PAK packages intended for use as positive adjustable voltage regulators. They are designed to supply more than 1.5A of load current with an output voltage adjustable over a 1.2 to 37V range. The nominal output voltage is selected by means of only a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators.

n OUTPUT VOLTAGE RANGE : 1.2 TO 37V n OUTPUT CURRENT IN EXCESS OF 1.5A n 0.1% LINE AND LOAD REGULATION n FLOATING OPERATION FOR HIGH VOLTAGES n COMPLETE SERIES OF PROTECTIONS : CURRENT LIMITING, THERMAL SHUTDOWN AND SOA CONTROL

ABSOLUTE MAXIMUM RATING Symbol Parameter V i-o Input-output Differential Voltage I O Output Current T o p Operating Junction Temperature for: LM117 LM217 LM317 P to t Power Dissipation T s t g Storage Temperature

1/11

ISOWATT220

THERMAL DATA Symbol Parameter R th j- ca s e Thermal Resistance Junction-case R th j- a mb Thermal Resistance Junction-ambient