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L6235 Datasheet(PDF) 6 Page - STMicroelectronics |
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L6235 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 25 page L6235 6/25 (6) Tested at 25°C in a restricted range and guaranteed by characterization. (7) See Fig. 1. (8) Measured applying a voltage of 1V to pin SENSE and a voltage drop from 2V to 0V to pin VREF. (9) See Fig. 2. Symbol Parameter Test Conditions Min Typ Max Unit Switching Characteristics tD(on)EN Enable to out turn-ON delay time (7) ILOAD = 2.8 A, Resistive Load 110 250 400 ns tD(off)EN Enable to out turn-OFF delay time (7) ILOAD = 2.8 A, Resistive Load 300 550 800 ns tD(on)IN Other Logic Inputs to Output Turn- ON delay Time ILOAD = 2.8 A, Resistive Load 2 µs tD(off)IN Other Logic Inputs to out Turn-OFF delay Time ILOAD = 2.8 A, Resistive Load 2 µs tRISE Output Rise Time (7) ILOAD = 2.8 A, Resistive Load 40 250 ns tFALL Output Fall Time (7) ILOAD = 2.8 A, Resistive Load 40 250 ns tDT Dead Time 0.5 1 µs fCP Charge Pump Frequency Tj = -25 to 125°C (6) 0.6 1 MHz PWM Comparator and Monostable IRCOFF Source current at pin RCOFF VRCOFF = 2.5 V 3.5 5.5 mA VOFFSET Offset Voltage on Sense Comparator Vref = 0.5 V ±5 mV tprop Turn OFF Propagation delay (8) Vref = 0.5 V 500 ns tblank Internal Blanking Time on Sense Comparator 1µs tON(min) Minimum on Time 1.5 2 µs tOFF PWM RecirculationTime ROFF= 20kΩ ; COFF =1nF 13 µs ROFF= 100kΩ ; COFF =1nF 61 µs IBIAS Input Bias Current at pin VREF 10 µA Tacho Monostable IRCPULSE Source Current at pin RCPULSE VRCPULSE = 2.5V 3.5 5.5 mA tPULSE Monostable of Time RPUL = 20kΩ ; CPUL =1nF 12 µs RPUL = 100kΩ ; CPUL =1nF 60 µs RTACHO Open Drain ON Resistance 40 60 Ω Over Current Detection & Protection ISOVER Supply Overcurrent Protection Threshold TJ = -25 to 125°C (6) 4.0 5.6 7.1 A ROPDR Open Drain ON Resistance IDIAG = 4mA 40 60 Ω IOH OCD high level leakage current VDIAG = 5V 1 µA tOCD(ON) OCD Turn-ON Delay Time (9) IDIAG = 4mA; CDIAG < 100pF 200 ns tOCD(OFF) OCD Turn-OFF Delay Time (9) IDIAG = 4mA; CDIAG < 100pF 100 ns ELECTRICAL CHARACTERISTICS (continued) (VS = 48V , Tamb = 25 °C , unless otherwise specified) |
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