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MC33797EK bảng dữ liệu(PDF) 10 Page - Freescale Semiconductor, Inc |
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MC33797EK bảng dữ liệu(HTML) 10 Page - Freescale Semiconductor, Inc |
10 / 34 page Analog Integrated Circuit Device Data 10 Freescale Semiconductor 33797 ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Voltage Threshold for SQB_LO or SQB_HI Shorted to Ground with an Open Squib using $C3 Command RSQUIB = Open VTHSG_SO 1.3 1.8 2.0 V DIAGNOSTICS FOR SQUIB CONTINUITY BETWEEN SENSE_XX AND SQB_LO_XX ($C2 COMMAND) Current Threshold for SQUIB_LO_1A, 1B, 2A, and 2B Continuity Check for Standard and Cross-coupled Conditions ($C2) SQUIB_LO_XXCONT (15) 7.0 V ≤ V VDIAG_X ≤ 35 V ITHSQB CON 150 – 350 mA DIAGNOSTICS FOR SQUIB SHORT BETWEEN FIRING LOOPS ($E0–$E3, $E8 COMMANDS) Voltage Threshold for Standard Squib Connection 7.0 V ≤ V VDIAG_X ≤ 35 V VTHSQBNOM 1.0 1.4 2.0 V Voltage Threshold for SQUIB_X Shorted to SQUIB_Y (1 or More Shorted Conditions) Short Between Squib Lines (Loops) (SQUIB_XX_SSQB_YY) (16) VTHSSQB 1.0 1.4 2.0 V VDIAG SUPPLY DIAGNOSTICS ($C0 COMMAND) VDIAG Supply Voltage High Threshold VDHI 15 17 18.3 V VDIAG Supply Voltage Low Threshold VDLO 5.7 6.5 7.0 V VFIRE SUPPLY DIAGNOSTICS VFIRE_1B AND VFIRE_2B ($C5 COMMAND) VFIRE Supply Voltage High Threshold VFDHI 15 17 18.3 V VFIRE Supply Voltage Low Threshold VFLO 5.7 6.5 7.0 V VDIAG SUPPLY DIAGNOSTICS VDIAG_1 AND VDIAG_2 (ADDITIONAL VOLTAGE THRESHOLDS) ($C5 COMMAND) VDIAG Supply Voltage Threshold 4 VVDIAG_X V4 30.2 32.8 36.2 V VDIAG Supply Voltage Threshold 3 VVDIAG_X V3 25.5 27.7 30.2 V VDIAG Supply Voltage Threshold 2 VVDIAG_X V2 20.5 22.6 25.5 V VDIAG Supply Voltage Threshold 1 VVDIAG_X V1 16 18.4 20.5 V VFIRE_RTN DIAGNOSTICS ($C9 COMMAND) R_RTN1 Short-to-Ground Threshold (Open Ground Connection) RRTN1 0.15 – 0.6 Ω R_RTN2 Short-to-Ground Threshold (Open Ground Connection) RRTN2 0.15 – 0.6 Ω HIGH-SIDE SAFING SENSOR DIAGNOSTICS ($C0 COMMAND) R_HS Valid Resistor Range 15 V ≤ V VDIAG_X ≤ 35 V RHS 4.1 5.1 6.1 k Ω R_HS Open Threshold 15 V ≤ V VDIAG_X ≤ 35 V RHSO 6.1 7.2 9.0 k Ω Notes 15 XX = 1A, 1B, 2A, or 2B 16 XX and YY = 1A, 1B, 2A, or 2B 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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