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Showing 19 results View by: Thread Post Sort by
  • LM138: External Capacitors

    Ryosuke Sugiura
    Ryosuke Sugiura
    TI Thinks Resolved
    Part Number: LM138 Other Parts Discussed in Thread: LM317 , (1)Input bypass capacitor Your recommendations:A 0.1-μF disc or 1-μF solid tantalum (2)The adjustment terminal bypass capacitor Your recommendations:A 1-μF solid tantalum or 25 μF in aluminum…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • LM138: 5A constant current over a long cable.

    LONG NGUYEN
    LONG NGUYEN
    Resolved
    Part Number: LM138 Other Parts Discussed in Thread: LM1084 , LM317 I need to have a 5A constant current and I am thinking of using the circuit in Figure 37, input voltage is ~28V. My load is quite far a way at the end of a cable (say 100ft). Can the LM138…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • LM138: lm138

    Belhaj ltaief Samir
    Belhaj ltaief Samir
    Resolved
    Part Number: LM138 Other Parts Discussed in Thread: LM1084 hi i need a lm138 models for ltspice to do the test
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • LM138: LM138/338

    Belhaj ltaief Samir
    Belhaj ltaief Samir
    TI Thinks Resolved
    Part Number: LM138 Is the LM138 regulator output current always equal to 5A? PAGE 12 DATASHEET THANKS
    • over 6 years ago
    • Power management
    • Power management forum
  • RE: LM138: lm138

    Belhaj ltaief Samir
    Belhaj ltaief Samir
    HI in this case of page 12 how to fix Iout = 5A or else lm138 its output current always equal to 5A
    • over 6 years ago
    • Power management
    • Power management forum
  • LM138: lower cost Industrial grade part in the same foot print as LM338 K STEEL/NOPB

    Saurabh Kapoor
    Saurabh Kapoor
    TI Thinks Resolved
    Part Number: LM138 Other Parts Discussed in Thread: LM338 , LM117 Do you have lower cost Industrial grade part in the same foot print as LM338 K STEEL/NOPB?
    • over 5 years ago
    • Power management
    • Power management forum
  • Questions of LM138

    Takahiro Nishizawa
    Takahiro Nishizawa
    TI Thinks Resolved
    Other Parts Discussed in Thread: LM138 We have questions about LM138. Question 1. In datasheet p.12, 8.2.1.1 "Design Requirements", Vout=1.25V(1+R2/R1)+Iadj(R2) Please tell us the method to calculate Iadj(R2). Question 2. Output voltage…
    • over 7 years ago
    • Power management
    • Power management forum
  • LM138: Support Enquiry

    William Lahan
    William Lahan
    Part Number: LM138 Other Parts Discussed in Thread: CSD18537NKCS We are interested in using the LM138 in a constant current source application. The device is used in a 1 second pulse mode for current delivery to the load 3.5 amps. This mode is very low…
    • over 7 years ago
    • Power management
    • Power management forum
  • LM338: Datasheet clarifications

    Roland Melad
    Roland Melad
    TI Thinks Resolved
    Part Number: LM338 Other Parts Discussed in Thread: LM138 , Hello, We have a customer with below questions. Appreciate your help to advice 1) The graph of Figure 5 on data sheet page 6 indicates drop-out voltages for load levels at 5A, 3A and 1A.…
    • over 5 years ago
    • Power management
    • Power management forum
  • LM338: Operating temperature

    user5784167
    user5784167
    TI Thinks Resolved
    Part Number: LM338 Other Parts Discussed in Thread: LM138 The temperature characteristics of LM338 TO-220 PKG products are displayed from 0 to 125 degrees. is this right? For reference, the LM138 is between -55 degrees and 125 degrees. What different…
    • over 6 years ago
    • Power management
    • Power management forum
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