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LM3402 数据表(PDF) 4 Page - National Semiconductor (TI) |
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LM3402 数据表(HTML) 4 Page - National Semiconductor (TI) |
4 / 22 page Electrical Characteristics V IN = 24V unless otherwise indicated. Typicals and limits appearing in plain type apply for T A =TJ = +25˚C. (Note 4) Limits appearing in boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. LM3402 Symbol Parameter Conditions Min Typ Max Units SYSTEM PARAMETERS t ON-1 On-time 1 V IN = 10V, RON = 200 k Ω 2.1 2.75 3.4 µs t ON-2 On-time 2 V IN = 40V, RON = 200 k Ω 490 650 810 ns LM3402HV Symbol Parameter Conditions Min Typ Max Units SYSTEM PARAMETERS t ON-1 On-time 1 V IN = 10V, RON = 200 k Ω 2.1 2.75 3.4 µs t ON-2 On-time 2 V IN = 70V, RON = 200 k Ω 290 380 470 ns LM3402/LM3402HV Symbol Parameter Conditions Min Typ Max Units REGULATION AND OVER-VOLTAGE COMPARATORS V REF-REG CS Regulation Threshold CS Decreasing, SW turns on 194 200 206 mV V REF-0V CS Over-voltage Threshold CS Increasing, SW turns off 300 mV I CS CS Bias Current CS = 0V 0.1 µA SHUTDOWN V SD-TH Shutdown Threshold R ON / SD Increasing 0.3 0.7 1.05 V V SD-HYS Shutdown Hysteresis R ON / SD Decreasing 40 mV OFF TIMER t OFF-MIN Minimum Off-time CS = 0V 300 ns INTERNAL REGULATOR V CC-REG V CC Regulated Output 6.6 7 7.4 V V IN-DO V IN -VCC Dropout I CC = 5 mA, 6.0V < VIN < 8.0V 300 mV V CC-BP-TH V CC Bypass Threshold V IN Increasing 8.8 V V CC-BP-HYS V CC Bypass Hysteresis V IN Decreasing 225 mV V CC-Z-6 V CC Output Impedance (0 mA < I CC < 5 mA) V IN =6V 55 Ω V CC-Z-8 V IN =8V 50 V CC-Z-24 V IN = 24V 0.4 V CC-LIM V CC Current Limit (Note 3) V IN = 24V, VCC =0V 16 mA V CC-UV-TH V CC Under-voltage Lock-out Threshold V CC Increasing 5.25 V V CC-UV-HYS V CC Under-voltage Lock-out Hysteresis V CC Decreasing 150 mV V CC-UV-DLY V CC Under-voltage Lock-out Filter Delay 100 mV Overdrive 3 µs I IN-OP I IN Operating Current Non-switching, CS = 0V 600 900 µA I IN-SD I IN Shutdown Current RON / SD = 0V 90 180 µA CURRENT LIMIT I LIM Current Limit Threshold 530 735 940 mA DIM COMPARATOR V IH Logic High DIM Increasing 2.2 V V IL Logic Low DIM Decreasing 0.8 V I DIM-PU DIM Pull-up Current DIM = 1.5V 75 µA www.national.com 4 |
类似零件编号 - LM3402 |
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类似说明 - LM3402 |
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