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LM2726M Fiches technique(PDF) 6 Page - Texas Instruments |
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LM2726M Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 16 page PWM_IN LG HG t1 t2 t3 t4 t5 t6 t7 t8 LM2725, LM2726 SNVS144D – NOVEMBER 2000 – REVISED MARCH 2013 www.ti.com Electrical Characteristics LM2726 (continued) VCC = CBOOT = 5V, SW = GND = 0V, unless otherwise specified. Typicals and limits appearing in plain type apply for TA = TJ = +25°C. Limits appearing in boldface type apply over the entire operating temperature range. Symbol Parameter Condition Min Typ Max Units ton_min Minimum Positive Input Pulse Width 55 (1) ns toff_min Minimum Negative Input Pulse Width 55 (2) VIH_PWM PWM_IN High Level Input When PWM_IN pin goes high 2.4 Voltage from 0V V VIL_PWM PWM_IN Low Level Input When PWM_IN pin goes low 0.25 Voltage from 5V (1) If after a rising edge, a falling edge occurs sooner than the specified value, the IC may intermittently fail to turn on the bottom gate when the top gate is off. As the falling edge occurs sooner and sooner, the driver may start to ignore the pulse and produce no output. (2) If after a falling edge, a rising edge occurs sooner than the specified value, the IC may intermittently fail to turn on the top gate when the bottom gate is off. As the rising edge occurs sooner and sooner, the driver may start to ignore the pulse and produce no output. TEST CIRCUIT DIAGRAMS Figure 2. Timing Diagram Figure 3. Enable Pin Shutdown 6 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM2725 LM2726 |
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