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L9788 Datasheet(PDF) 94 Page - STMicroelectronics |
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L9788 Datasheet(HTML) 94 Page - STMicroelectronics |
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94 / 264 page  Low-side drivers L9788 94/264 DS12308 Rev 4 S/RGkill_LSH FAST VS/R off when an OVC fault happens From 30% to 80% of VOUT VB_IN = 14 V, Rload = 3 Ω, Cload = 10 nF 5 - 20 V/µs O2H1/2 Ton_OUTx Propagation Delay from MSC_EN rising edge to 80% output OUTx voltage VB_IN = 14 V, Rload = 3 Ω, Cload = 10 nF - - 12 µs O2H1/2 Toff_OUTx Propagation Delay from MSC_EN falling edge to 20% output OUTx voltage VB_IN = 14 V, Rload = 3 Ω, Cload = 10 nF - - 10 µs O2H1/2 Vclamp_OUTx OUTx clamping Voltage ILOAD = 1.3 A 45 50 55 V O2H1/2 Vclamp_OUTx_ high_curr OUTx clamping Voltage ILOAD = 1.3 A Guaranteed by design, provided single pulse energy limits are not violated by clamping action 45 50 55 V O2H1/2 I_ovc1_o2h Over current driver threshold 1 configure as sol 3 4.5 6 A O2H1/2 I_ovc2_o2h Over current driver threshold 2 Tj = -40 °C configured as O2 8.6 - 12.4 A O2H1/2 I_ovc2_o2h Over current driver threshold 2 Tj = +25 °C configured as O2 8.0 - 11.2 A O2H1/2 I_ovc2_o2h Over current driver threshold 2 Tj = +150 °C configured as O2 7.8 - 10.5 A O2H1/2 I_LS_ocv_flt LS overcurrent filter time Guaranteed by scan 4 - 7 µs O2H1/2 T_SD_HIGH Temperature shut down - 185 - 200 °C O2H1/2 T_SD_LOW Temperature shut down recover - 175 - 190 °C O2H1/2 T_SD_hys Temperature shut down hysteresis - 5 - 10 °C O2H1/2 tmsd_pre_an Thermal shutdown analog filter time Guaranteed by design 1.5 - 4 µs O2H1/2 t_SD_deglitch Digital deglitch filter time on Temperature shut down detection Guaranteed by scan - 10 - µs O2H1/2 Driver reliability data EnergyRep O2H Energy repetitive pulses Tcase = 25 °C ; I_OT_n =1.5A 18 Miopulses - - 15 mJ O2H1/2 EnergyRep O2H Energy repetitive pulses Tcase= 115 °C ; I_OT_n = 1.2A 648 Miopulses - - 10 mJ O2H1/2 Table 46. Low-side driver - O2 HEATER electrical characteristics (continued) Symbol Parameter Test condition Min Typ Max Unit Pin |
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