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L9788 Datasheet(PDF) 105 Page - STMicroelectronics |
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L9788 Datasheet(HTML) 105 Page - STMicroelectronics |
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105 / 264 page  DS12308 Rev 4 105/264 L9788 Low-side drivers 263 Ton_OUTx Propagation Delay from MSC_EN rising edge to 80% output OUTx voltage VB_IN = 14 V, Rload=270 Ω, - - 5 µs LED1/2 Toff_OUTx Propagation Delay from MSC_EN falling edge to 20% output OUTx voltage VB_IN = 14 V, Rload=270 Ω, - - 5 µs LED1/2 Vclamp_OUTx OUTx clamping Voltage ILOAD = 50 mA 40 45 50 V LED1/2 Vclamp_OUTx_ high_curr OUTx clamping Voltage ILOAD = 70 mA Guaranteed by design, provided single pulse energy limits are not violated by clamping action 40 45 50 V LED1/2 IOVC_OUTx Over current driver threshold -70 - 110 mA LED1/2 I_LS_ocv_flt LS overcurrent filter time Guaranteed by scan 4 - 7 µs LED1/2 VLVT Short to GND threshold voltage Driver tristate, diag enabled 1.9 - VOUTOPEN -180mV VLED1/2 V_OL Open load threshold voltage Driver tristate, diag enabled VOUTOPEN +160mV -3V LED1/2 VOUTOPEN Open load voltage Driver tristate, diag enabled 2.3 2.5 2.7 V LED1/2 I_LS_PU1 Diagnostic pull up current In OFF condition, OUTx < VLVT, Ipupd_EN = ENB, Ipupd_MODE = ”1” 2.5 3.6 4.7 mA LED1/2 I_LS_PU2 Diagnostic pull up current In OFF condition, OUTx < VLVT, Ipupd_EN = ENB, Ipupd_MODE =”0” 40 70 100 µA LED1/2 I_LS_PD1 Diagnostic pull down current In OFF condition, OUTx > VOUTOPEN, Ipupd_EN = ENB LEDx_PD_EN = 1 60 85 105 µA LED1/2 Tflt_diagoff1 DIAG filter time Filter Mode = 0 75 100 125 µs LED1/2 Table 49. Low-side driver - LED electrical characteristics (continued) Symbol Parameter Test condition Min Typ Max Unit Pin |
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