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LM137 bảng dữ liệu(PDF) 7 Page - STMicroelectronics |
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LM137 bảng dữ liệu(HTML) 7 Page - STMicroelectronics |
7 / 18 page LM137 - LM337 Electrical characteristics 7/18 Table 5. Electrical characteristics of LM337 (TJ = 0 to 150 °C unless otherwise specified). (1) Symbol Parameter Test conditions Min. Typ. Max. Unit VREF Reference voltage Ta = 25°C -1.213 -1.25 -1.287 V |VI - VO| = 3 to 40 V, TJ = Tmin to Tmax |IO| = 10mA to |IO(max)|, P ≤ Pmax -1.2 -1.25 -1.3 KVI Line regulation (2) Ta = 25°C |VI - VO| = 3 to 40 V IO = 0.1 A 0.01 0.04 %/V IO = 20 mA 0.01 0.04 KVO Load regulation (2) Ta = 25°C |IO| = 10mA to |IO(max)| |VO| ≤ 5 V 15 50 mV |VO| ≥ 5 V 0.3 1 % Thermal regulation Ta = 25°C, pulse 10 ms 0.003 0.04 %/W IADJ Adjustment pin current 65 100 µA ΔIADJ Adjustment pin current change Ta = 25°C, |IO| = 10 mA to |IO(max)| |VI - VO| = 3 to 40 V 25 µA KVI Line regulation (2) |VI - VO| = 3 to 40 V 0.02 0.07 %/V KVO Load regulation (2) |IO| = 10mA to |IO(max)| |VO| ≤ 5 V 20 70 mV |VO| ≥ 5 V 0.3 1.5 % |IO(min)| Minimum load current |VI - VO| ≤ 40 V 2.5 10 mA |VI - VO| ≤ 10 V 1.5 6 IOS Short circuit output current |VI - VO| ≤ 15 V 1.5 2.2 A |VI - VO| = 40 V, TJ =2 5°C 0.15 0.4 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 66 77 KVT Temperature stability 0.6 % KVH Long term stability Ta = 125°C, 1000 H 0.3 1 % 1. Although power dissipation is internally limited, these specifications are applicable for power dissipation of: 15 W for TO-220 and 20 W for TO-3 package; IO(max) is 1.5 A. 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. |
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