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Part Number: MC7990

 

 

 

 

Description: The MC7900 series of fixed output negative voltage regulators are ntended as complements to the popular MC7800 series d...


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MC7990 General Description


The MC7900 series of fixed output negative voltage regulators are ntended as complements to the popular MC7800 series devices. These egative regulators are available in the same sevenvoltage options as the MC7800 devices. In addition, one extra voltage option commonly employed in MECL systems is also available in the negative MC7900 series.

Available in fixed output voltage options from 5.0 V to 24 V, these regulators employ current limiting, thermal shutdown, and safearea compensation making them remarkably rugged under most operating conditions. With adequate heatsinking they can deliver output currents in excess of 1.0 A.


MC7990 Maximum Ratings

Rating
Symbol
Value
Unit
  Input Voltage (5.0 V VO 18 V)
                         (24 V)
VI
35
40
Vdc
   Power Dissipation
   Case 221A
      TA = +25°C
      Thermal Resistance, JunctiontoAmbient
      Thermal Resistance, JunctiontoCase
  Case 936 (D2PAK)
      TA = +25°C
      Thermal Resistance, JunctiontoAmbient
      Thermal Resistance, JunctiontoCase
PD
JA
JC
PD
JA
JC
Internally Limited
65
5.0
Internally Limited
70
5.0
W
/W
/W
W
/W
/W
  Storage Junction Temperature Range
Tstg
65 to +150
  Junction Temperature
TJ
+150
  

MC7990 Features

• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor SafeArea Compensation
• Available in 2% Voltage Tolerance (See Ordering Information)

MC7990 datasheet

MC705C8ACFNR2
PDF/DataSheet Download

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