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L9305 Datasheet(PDF) 33 Page - STMicroelectronics |
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L9305 Datasheet(HTML) 33 Page - STMicroelectronics |
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33 / 107 page  Symbol Parameter Test condition Min Typ Max Unit Pin Ireg_acc_L Current regulation accuracy HILOAD_x = 1, 0.3A ≤ Ireg ≤ 0.5A(1) -5 – 5 % LOAD_SOLx Ireg_acc Current regulation accuracy HILOAD_x = 1, 0.5 A < Ireg ≤ 2 A(1).Tj = -40 °C -4 – 4 % LOAD_SOLx HILOAD_x = 1, 0.5 A < Ireg ≤ 2 A. Tj = 27 °C -4 – 4 HILOAD_x = 1, 0.5 A < Ireg ≤ 1.3A(1).Tj = 150 °C -4 – 4 HILOAD_x = 1, 1.3 A < Ireg ≤ 2 A(1).Tj = 150 °C -12 – 12 Current control – Dither parameters Dth_ampl Dither Tstep amplitude Guaranteed by scan 0 – 255*Ireg_res mA LOAD_SOLx Dth_num Dither Tstep number Guaranteed by scan 0 – 31 step LOAD_SOLx Tstep Dither Tstep duration Guaranteed by scan TPWM – 64*TPWM LOAD_SOLx Tdither Dither Period Guaranteed by scan 2*TPWM – 4*31*64*TPWM LOAD_SOLx Current control – PWM parameters TPWM_range PWM period range Guaranteed by scan, nominal system clock frequency 50 – 20470 µs LOAD_SOLx TPWM_res PWM period resolution TPWM < 100 µs, Guaranteed by scan 4.5 5 5.6 µs LOAD_SOLx TPWM_res_2 PWM period resolution TPWM < 100 µs, Guaranteed by scan 9 10 11.1 µs LOAD_SOLx TPWM_min PWM period meter min value – 36.1 40 44.1 µs LOAD_SOLx TPWM_max PWM period meter max value – 15.04 16.67 18.38 ms LOAD_SOLx 1. provided configuration parameters and current control settings are able to allow proper regulation. Table 18. Valve driver on state diagnostics parameters Symbol Parameter Test condition Min Typ Max Unit Pin On state diagnostic I_HS_ovc0 HS overcurrent OVC_thres_x=0 – – -3 A LOAD_SOLx I_HS_ovc1 HS overcurrent OVC_thres_x=1 – – -4.5 A LOAD_SOLx I_LS_ovc0 LS overcurrent OVC_thres_x=0 3 – – A LOAD_SOLx I_LS_ovc1 LS overcurrent OVC_thres_x=1 4.3 – – A LOAD_SOLx I_HS_ocv_flt HS overcurrent filter time Guaranteed by scan 3 – 5 µs LOAD_SOLx I_LS_ocv_flt LS overcurrent filter time Guaranteed by scan 3 – 5 µs LOAD_SOLx T_SD_accuracy Temperature ADC accuracy Design info, not tested -10 – 10 °C Tj_SOLx T_WARN Temperature warning – 175 – 185 °C Tj_SOLx T_SD Temperature shut down – 185 – 200 °C Tj_SOLx T_SD_deglitch Digital deglitch filter time Guaranteed by scan 7.5 10 12.5 µs Tj_SOLx T_WARN_deglitch Digital deglitch filter time Guaranteed by scan 7.5 10 12.5 µs Tj_SOLx VBATP_ov_th1 VBATP over voltage first threshold – 27 27.8 29 V VBATP VBATP_ov_th1_deglitch VBATP over voltage digital deglitch Guaranteed by scan 90 – 120 µs VBATP Vclamp LOADx clamp voltage VBATP < 27V 32 35 38 V LOAD_SOLx Vclamp_dly LOADx disable delay by clamp activation detection Design info, not tested – – 2 µs LOAD_SOLx L9305 Current control drivers DS12774 - Rev 10 page 33/107 |
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