전자부품 데이터시트 검색엔진 |
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LM2725 데이터시트(PDF) 3 Page - National Semiconductor (TI) |
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LM2725 데이터시트(HTML) 3 Page - National Semiconductor (TI) |
3 / 9 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VCC 7.5V CBOOT 42V CBOOT to SW 8V SW to PGND 36V Junction Temperature +150˚C Power Dissipation (Note 2) 720mW Storage Temperature −65˚ to 150˚C ESD Susceptibility Human Body Model (Note 3) 1 kV Soldering Time, Temperature 10sec., 300˚C Operating Ratings (Note 1) VCC 4V to 7V Junction Temperature Range 0˚ to 125˚C Electrical Characteristics LM2725 VCC = CBOOT = 5V, SW = GND = 0V, unless otherwise specified. Typicals and limits appearing in plain type apply for T A =T J = +25˚C. Limits appearing in boldface type apply over the entire operating temperature range. Symbol Parameter Condition Min Typ Max Units POWER SUPPLY I q_op Operating Quiescent Current PWM_IN = 0V 180 250 µA I q_sd Shutdown Quiescent Current EN = 0V, PWM_IN = 0V 0.5 15 µA TOP DRIVER Peak Pull-Up Current Test Circuit 1, V bias = 5V, R = 0.1 Ω 1.2 A Pull-Up Rds_on I CBOOT =IHG = 0.7A 2.4 Ω Peak Pull-down Current Test Circuit 2, V bias = 5V, R = 0.1 Ω −1.0 A Pull-down Rds_on I SW =IHG = 0.7A 1.4 Ω t 4 Rise Time Timing Diagram, C LOAD = 3.3nF 17 ns t 6 Fall Time 10 ns t 3 Pull-Up Dead Time Timing Diagram 23 ns t 5 Pull-Down Delay Timing Diagram, from PWM_IN Falling Edge 21 ns BOTTOM DRIVER Peak Pull-Up Current Test Circuit 3, V bias = 5V, R = 0.1 Ω 1.2 A Pull-up Rds_on I VCC =ILG = 0.7A 2.6 Ω Peak Pull-down Current Test Circuit 4, V bias = 5V, R = 0.1 Ω −2 A Pull-down Rds_on I GND =ILG = 0.7A 0.65 Ω t 8 Rise Time Timing Diagram, C LOAD = 3.3nF 18 ns t 2 Fall Time 6 ns t 7 Pull-up Dead Time Timing Diagram 28 ns t 1 Pull-down Delay Timing Diagram, from PWM_IN Rising Edge 15 ns LOGIC V uvlo_up Power On Threshold VCC rises from 0V toward 5V 3.0 V V uvlo_dn Under-Voltage-Lock-Out Threshold 2.5 V V uvlo_hys Under-Voltage-Lock-Out Hysteresis 0.5 V www.national.com 3 |
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