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L9779WD 数据表(PDF) 89 Page - STMicroelectronics |
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L9779WD 数据表(HTML) 89 Page - STMicroelectronics |
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89 / 170 page  DocID027452 Rev 5 89/170 L9779WD Functional description 169 Electrical characteristics of [OUT21], [OUT23], [OUT25], [OUT26] when configured as single power stages If necessary an external free-wheeling diode must be used for the High side drivers. Diagnosis characteristic of [OUT21], [OUT23], [OUT25], [OUT26] when configured as single power stages Table 37. Electrical characteristics of [OUT21], [OUT23], [OUT25], [OUT26] when configured as single power stages Pin Symbol Parameter Test condition Min Typ Max Unit Out 21,23,25,26 Imax Output current Not tested - 0.6 A RDS-on LSd Drain source resistance Iload = 0.6 A - - 1.5 Ω IOUTlk Output leakage current Vpin = GND, VB = 13.5 V - - 10 µA VS/R voltage S/R on/off R = 21 Ω, C = 10 nF; from 70% to 20% of VOUT 2-6 - TTurn-on_ LSd Turn-on delay time From command to 70% VOUT Load: 21 Ω, 10 nF -- 6 µs TTurn-off_ LSd Turn-off delay time From command to 20% VOUT Load: 21 Ω, 10 nF -- 6 µs Table 38. Diagnosis characteristic of [OUT21], [OUT23], [OUT25], [OUT26] when configured as single power stages Pin Symbol Parameter Test condition Min Typ Max Unit Out 21, 23, 25, 26 Ropen load Min resistor value open load detection Not tested 500 - - kΩ IOVC Over current threshold - 1 2 A TFILTEROVC Over current filtering time Tested by scan 2 4 5 µs TFILTERdiaggoff Filtering open load and short to GND diag. off Tested by scan 7 - 13 µs Td_mask Diagnosis mask time after switch-off Tested by scan 1.2 - 1.6 ms VOUTOPEN Output open load voltage Open load condition 2.3 - 2.7 V VHVT Output short-circuit to VB Voltage range threshold - VOUTOPEN +160mV -3 V VLVT Open load threshold voltage -1.9 - VOUTOPEN -200mV V IOUT_PD Output diagnostic pull down current off state Vpin = 5 V 160 240 320 µA IOUT_PU Output diagnostic pull up current off state Vpin = GND 30 50 70 µA ItOPEN Open load threshold current - 100 - 200 - |
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