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LM138K Folha de dados(PDF) 6 Page - STMicroelectronics |
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LM138K Folha de dados(HTML) 6 Page - STMicroelectronics |
6 / 23 page Electrical characteristics LM138 - LM238 - LM338 6/23 4 Electrical characteristics Table 4. Electrical characteristics for LM138/LM238 (1) 1. (TJ = -55 to 150 °C for LM138, TJ = -25 to 150 °C for LM238, VI - VO = 5 V, IO = 2.5 A. Although power dissipation is internally limited, these specifications apply to power dissipation up to 50 W, unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit KVI Line regulation (2) 2. Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects are taken into account separately by thermal rejection. TA = 25°C, VI - VO = 3 to 35 V 0.005 0.01 %/V KVO Load regulation (2) TA = 25°C IO = 10 mA to 5 A VO ≤ 5 V 5 15 mV VO ≥ 5 V 0.1 0.3 % Thermal regulation Pulse = 20 ms 0.002 0.01 %/W IADJ Adjustment pin current 45 100 µA ΔIADJ Adjustment pin current change IL = 10 mA to 5 A, VI - VO = 3 to 35 V 0.2 5 µA VREF Reference voltage VI - VO = 3 to 35 V, IO = 10 mA to 5 A P ≤ 50 W 1.19 1.24 1.29 V KVI Line regulation (2) VI - VO = 3 to 35 V 0.02 0.04 %/V KVO Load regulation (2) IO = 10 mA to 5 A VO ≤ 5 V 20 30 mV VO ≥ 5 V 0.3 0.6 % KVT Temperature stability TJ = TMIN to TMAX 1% IO(MIN) Minimum load current VI - VO ≤ 35 V 3.5 5 mA IO(MAX) Current limit VI - VO ≤ 10 V DC 5 8 A 0.5 ms Peak 7 12 VI - VO = 30 V 1 VNO RMS output noise (% of VO) Ta = 25°C, f = 10 Hz to 10 kHz 0.003 % RVF Ripple rejection ratio VO = 10 V, f = 120 Hz 60 dB CADJ = 10 µF 60 75 KVH Long term stability TA = 125°C 0.3 1 % |
Nº de peça semelhante - LM138K |
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Descrição semelhante - LM138K |
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