Sanna. ABBE. SER@REE WOnnee Ww New Era Electronics A division ef New Era Group inc. October 1987 The Power . . . The Vision 4B DESCRIPTION The 79HG negative 4 terminal adjustable linear voltage regulator is capable of delivering a continous load current in excess of -5 amperes over an output range of 24 to -2.11 volts. The 79HG has built-in protection features such as output current limiting and thermal overload . If external conditions exceed the 79HG's capabilities (see absolute maximums), the device temporarily shuts down protecting itself and the load circuit until the fault is removed. This feature eliminates costly additional protection circuitry as well as overly con- servative heat sinks typical of discrete high current voltage regulator designs. The 4 lead hermetic TO-204MA package, (formerly called TO-3) provides. up to 50 watts of internal power dissipation. M2 FEATURES @ Output Voltage adjustable from 24 to 2.11 volts @ -5.0 A output current @ Internal Current and Thermal Overload Protection @ Low Dropout Voltage (typically 2.2V @ 5.0A) @ 50 W Power Dissipation Connection Diagram @ Metal 4 lead T0-204MA type package TO-204 Type Package (Top View) @ Case electrically isolated (floating) Coreen 4 cons ouputs input 4 4%. PRODUCT FAMILY PART NUMBER OUTPUT VOLTAGE DESCRIPTION 79HGSC -24 to -2.11V Commercial Temp 79HGSM -24 to -2.11V Military Temp 79HGSP -24 to -2.11V Military ProcessOctober 1987 4B TYPICAL ELECTRICAL CHARACTERISTICS TJ=25 C , Vin=-10V, lout=-2.0A unless otherwise specified Line Regulation 0.2% x Vout Vin=Vout-3V to Vin=Vout16V Load Regulation 0.5% x Vout -.01 to -5.0 amps Short Circuit Current Limit ~8.0Apeak Thermal Resistance Junction to Case 1.8 C/W 42%. ABSOLUTE MAXIMUM RATINGS Input Voltage 4QV Input to Output Differential, Output Short Circuited -35V Internal Power Dissipation DOW @ 25 C case Operating Junction Temperature: 79HGSC (commercial) 0 C to 150 C 79HGSM (mil temp) -55C to 150 C 79HGSP (mil process) 55 C to 150 C Storage Temperature Range -95C to 150C Pin Temp (soldering 60 sec) 300C New Era Electronics A Civielon of New Ere Group inc. The Power ... The Vision