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MCZ33797EKR2 Folha de dados(PDF) 11 Page - Freescale Semiconductor, Inc |
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MCZ33797EKR2 Folha de dados(HTML) 11 Page - Freescale Semiconductor, Inc |
11 / 34 page Analog Integrated Circuit Device Data Freescale Semiconductor 11 33797 ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS R_HS Short Threshold RHSS 2.8 – 4.1 κΩ VFIRE_XA & VFIRE_XB Current during High Side Safing Test at Open Threshold VFIRE_1A & VFIRE_1B or VFIRE_2A & VFIRE_2B I1HSO 270 360 410 µA VFIRE_XA & VFIRE_XB Current during High Side Safing Test at Short Threshold VFIRE_1A & VFIRE_1B or VFIRE_2A & VFIRE_2B I1HSS 287 385 436 µA HIGH-SIDE SAFING SENSOR DIAGNOSTICS WITH 1 SAFING SENSOR IN FIRING PATH CONNECTED TO VFIRE_1A AND VFIRE_2A PINS (GUARANTEED BY DESIGN) ($C0 COMMAND) Total VFIRE_XX Current during High Side Safing Test at Open Threshold VFIRE_1A, VFIRE_1B, VFIRE_2A & VFIRE_2B pins I2HSO 574 705 835 µA Total VFIRE_XX Current during High Side Safing Test at Short Threshold VFIRE_1A, VFIRE_1B, VFIRE_2A & VFIRE_2B pins I2HSS 605 748 892 µA R_HS Valid Resistor Range 15 V ≤ V VDIAG_X ≤ 35 V R2HS 1.99 – 2.93 k Ω R_HS Open Threshold 15 V ≤ V VDIAG_X ≤ 35 V R2HSO 2.93 3.35 4.43 k Ω R_HS Short Threshold 15 V ≤ V VDIAG_X ≤ 35 V R2HSS 1.41 1.61 1.99 k Ω R_LIMIT RESISTOR DIAGNOSTICS ($C8 COMMAND) R_LIMIT Valid Resistor Range RRL 4.32 – 45.3 k Ω R_LIMIT Open Threshold (“Out of Range Threshold”) RRLO 60 76 105 k Ω R_LIMIT Short-to-Ground Threshold (“Out of Range Threshold”) RRLS 3.0 3.5 4.31 k Ω Maximum External Capacitance to Ground CRL – – 20 pF R_DIAG RESISTOR DIAGNOSTICS ($C8 COMMAND) (17) R_DIAG Valid Resistor Range RRD 8.0 – 13 k Ω R_DIAG Open Threshold (“Out of Range Threshold”) RRDO 13 23 60 k Ω R_DIAG Short-to-Ground Threshold (“Out of Range Threshold”) RRDS 3.0 5.4 8.0 k Ω Maximum External Capacitance to Ground CRD – – 20 pF Notes 17 By changing the R_DIAG resistor value, the resistance thresholds can be varied by a linear relationship.The R_DIAG resistance could be changed by ±10% to shift the thresholds by ±10%. Design goal for resistance threshold change is ±15%. R_DIAG threshold limit may have to be changed to accommodate ±15% change. Example: Shifting the R_DIAG resistance value ±10%, the resistance threshold will change by ±10%. Refer to Table 4. Table 3. Static Electrical Characteristics (continued) Characteristics noted under conditions 4.75 V ≤ VDD ≤ 5.25 V; 7.0 V ≤ VVFIRE_XX ≤ 35 V; VVDIAG_X = VVFIRE_XX; FEN 1 = FEN 2 = VDD; RR_LIMIT_X = 10 kΩ ±1%, RR_DIAG = 10 kΩ ±1%, -40°C ≤ TA ≤ +85°C, GND = 0 unless otherwise noted. Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted. Characteristic Symbol Min Typ Max Unit |
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