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L9929 数据表(PDF) 5 Page - STMicroelectronics |
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L9929 数据表(HTML) 5 Page - STMicroelectronics |
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5 / 23 page ![]() 5/23 L9929 (*) In case of SC OUTx to gnd resp. to VS the SC switch off current is always higher than the start value of current regulation ( ∆|IOUK| = |IOUK| - |IOUmax| Logic inputs VIH Logic Input Voltage High IN1, IN2, DI, EN 2.14 V VIL Logic Input Voltage Low IN1, IN2, DI, EN 0.86 V VH Logic Input Voltage Hysteresis IN1, IN2, DI, EN 0.1 0.6 V II Logic Input Current IN1, IN2, DI VI ≤ 1V -200 -125 µA IEN Logic Input Current EN VIEN ≥ 1V 100 µA tdt Detection Time EN, DI 3 4 µs Power Outputs (OUT1, OUT2) RS Switch on Resistance LS ROUT-Vs, VS > 5 V 150 250 m Ω Switch on Resistance HS ROUT-GND, VS > 5 V 150 250 m Ω |IOU|max Switch-off Current (*) -40 °C < Tj < 165 °C Tj < 175 °C 7.8 8.6 2.5 10.5(tbd) A A ta Switch-off time 12 17 22 µs tb Blanking time 811.5 15 µs ta/tb Tracking 1.3 1.5 1.7 |IOUK| Short circuit detection current (*) 8.9 10.6 - A ∆|IOUK| Short Circuit Current Trecking (*) 1.3 2.0 - A t Reactivation time after internal shut down Overcurrent- or overtemperature shut down to reactivation of the output stage 200 µs IL Leakage Current Output stage switched off 1 mA VFD Free-wheel diode forward voltage IO = 3A, VS = 0V 2 V ISF Output„high“ (SF not set) VSF = 5V 20 µA ISF Output„low“ (SF set) VSF = 0.5V 350 µA VSF = 0.8V 400 µA VSF = 1V 400 µA Timing f Maximum PWM Frequency min. operating time 10 µs Device can not be controlled with higher frequency (specify in max ratings?) 230 kHz fS Switching Frequency during current limitation f = 1/(ta+tb)20 50 kHz tdon Output ON-delay IN1 --> OUT1 or IN2 --> OUT2 37.5 µs tdoff Output OFF-delay 3 5 µs tr Output rise time OUT1H--> OUT1L, OUT2H--> OUT2L, IOUT = 3 A OUT1L--> OUT1H, OUT2L--> OUT2H 15 µs tf Outout fall time 1 3 µs tddis Disable Delay Time DI --> OUTn, En --> OUTn 3 7 µs tdp Power on Delay Time VS = on --> output stage active 1 ms terr Delay time for fault detection 1 6 µs Table 6. Electrical Characteristcs (continued) ( Tj = -40 to +150°C; VS = 5 to 28V) Symbol Parameter Test Condition Min. Typ. Max. Unit |
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