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LM137H bảng dữ liệu(PDF) 9 Page - Texas Instruments |
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LM137H bảng dữ liệu(HTML) 9 Page - Texas Instruments |
9 / 28 page LM137, LM337-N www.ti.com SNVS778E – MAY 1999 – REVISED JANUARY 2016 Feature Description (continued) LM137 VOUT = −10 V VIN − VOUT = −40 V IIL = 0 A → 0.25 A → 0 A Vertical sensitivity, 5 mV/div Figure 13. Output Drift (10W Pulse for 10ms) In Figure 13, a typical LM137 device's output drifts only 3 mV (or 0.03% of VOUT = −10 V) when a 10-W pulse is applied for 10 ms. This performance is thus well inside the specification limit of 0.02%/W × 10 W = 0.2% maximum. When the 10-W pulse is ended, the thermal regulation again shows a 3-mV step at the LM137 chip cools off. NOTE The load regulation error of about 8 mV (0.08%) is additional to the thermal regulation error. In Figure 14, when the 10-W pulse is applied for 100 ms, the output drifts only slightly beyond the drift in the first 10 ms, and the thermal error stays well within 0.1% (10 mV). Copyright © 1999–2016, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM137 LM337-N |
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