LM4051 National Semiconductor, LM4051 Datasheet
LM4051
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LM4051 Summary of contents
Page 1
... The minimum operating current is 60 µA for the LM4051-1.2 and the LM4051-ADJ. Both versions have a maximum operating current of 12 mA. The LM4051 comes in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.1%, while the B-grade have 0.2% and the C-grade 0.5%, all with a tempco of 50 ppm/˚ ...
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... I = 1.225V Voltage Option H = Adjustable Third Field: A–C = Initial Reverse Breakdown Voltage or Reference Voltage Tolerance ± ± ± 0.1 0.2 0.5% www.national.com LM4051 Supplied as LM4051 Supplied as 1000 Units, Tape and 3000 Units, Tape and Reel Reel LM4051AIM3-1.2 LM4051AIM3X-1.2 LM4051AIM3-ADJ LM4051AIM3X-ADJ LM4051BIM3-1.2 LM4051BIM3X-1.2 LM4051BIM3-ADJ LM4051BIM3X-ADJ LM4051CIM3-1 ...
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... LM4051-ADJ +220˚ all other limits 25˚C. The grades A, B and C designate initial Re- MIN MAX A J ± ± ± 0.1%, 0.2% and 0.5% respectively. LM4051AIM3 Typical Conditions (Limits) (Note 4) (Note 5) = 100 µA 1.225 = 100 µA 39 ± ± ± ...
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... LM4051-ADJ (Adjustable) Electrical Characteristics Boldface limits apply for mA RMIN R REF OUT ± ± 0.2% and 0.5%, respectively for V Symbol Parameter V Reference Voltage I REF R Reference Voltage I R Tolerance (Note 6), (Note 8) I Minimum Operating RMIN Current Reference I REF R RMIN ...
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... MAX MIN R max T=65˚C is shown below: Therefore example, the A-grade LM4051-1.2 has an over-temperature Reverse Breakdown Voltage tolerance of Note 7: When V 1.6V, the LM4051-ADJ in the SSOT-23 package must operate at reduced I OUT the die (-) output and the package (-) output pin. See the Output Saturation curve in the Typical Performance Characteristics section. ...
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Typical Performance Characteristics Noise Voltage Start-Up Characteristics Reference Voltage vs Output Voltage and Temperature www.national.com (Continued) Reverse Characteristics and Minimum Operating Current DS101222-5 DS101222-7 Reference Voltage vs Temperature and Output Voltage DS101222-11 6 DS101222-9 DS101222-8 DS101222-10 ...
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Typical Performance Characteristics Feedback Current vs Output Voltage and Temperature Output Impedance vs Frequency Reverse Characteristics (Continued) Output Saturation (SOT-23 Only) DS101222-12 Output Impedance vs Frequency DS101222-13 DS101222-15 7 DS101222-33 DS101222-14 DS101222-16 www.national.com ...
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... Typical Performance Characteristics Large Signal Response Thermal Hysteresis Functional Block Diagram *LM4051-ADJ only **LM4051-1.2 only www.national.com (Continued) DS101222-17 DS101222-50 8 DS101222-18 DS101222-21 ...
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... LM4051s using the SSOT-23 package have pin 3 connected as the (-) output through the package’s die attach interface. Therefore, the LM4051-1.2’s pin 3 must be left floating or connected to pin 2 and the LM4051-ADJ’s pin 3 is the (-) out- put conventional shunt regulator application (Figure ...
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... Typical Applications (Continued) FIGURE 3. Bounded amplifier reduces saturation-induced delays and can prevent succeeding stage damage. Nominal clamping voltage is DS101222-20 FIGURE 4. Voltage Level Detector www.national.com DS101222-24 ± V (LM4051’s reverse breakdown voltage) +2 diode V O FIGURE 5. Voltage Level Detector DS101222-23 ...
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Typical Applications (Continued) DS101222-25 FIGURE 6. Fast Positive Clamp 2. FIGURE 7. Bidirectional Clamp DS101222-26 ± 2.4V FIGURE 10. Simple Floating Current Detector 11 DS101222-35 FIGURE 8. Bidirectional Adjustable ± ± Clamp 18V to 2.4V DS101222-36 FIGURE ...
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Typical Applications (Continued) Note 11: *D1 can be any LED 1. mA. D1 may act as an indicator. D1 will www.national.com DS101222-38 FIGURE 11. Current Source FIGURE ...
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Typical Applications (Continued) FIGURE 13. Precision 1 µ Current Sources DS101222-28 DS101222-29 13 www.national.com ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...