參數(shù)資料
型號(hào): MC33797
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述: Four Channel Squib Driver IC
中文描述: 四通道爆管驅(qū)動(dòng)IC
文件頁(yè)數(shù): 5/32頁(yè)
文件大小: 639K
代理商: MC33797
Analog Integrated Circuit Device Data
Freescale Semiconductor
13
33797
DYNAMIC ELECTRICAL CHARACTERISTICS
FET DRIVERS
Turn-On Delay Time
CS
↑ to 80% IHS
tON
––
72
s
Turn-Off Delay Time
CS
↑ to 20% IHS
tOFF
––
10
s
Diagnostic Timing/Resolution
5.0 V
≤ VVDIAG_X ≤ 35 V, IHS ≥ IMEAS, 0 s ≤ tMEASURE_TIME ≤ 6.375 ms,
CSQUIB_HI = 0.12 F, CSQUIB_LO = 0.12 F
tRESOLUTION
21.25
25
28.75
s
DIAGNOSTIC DELAY TIME
Squib Resistance Diagnostic Delay Time (21)
From CSB
↑ Until Transistor Test Results Are Valid, CSQUIB_HI = 0.12 F,
CSQUIB_LO = 0.12 F
tDIAG1
––
300
s
Squib Open/Short Diagnostic Delay Time (21)
From CSB
↑ Until Squib Open/Short Diagnostic Results Are Valid,
CSQUIB_HI = 0.12 F, CSQUIB_LO = 0.12 F
tDIAG2
3000
s
VDIAG Supply Diagnostic Delay Time From CSB
↑ until VDIAG Diagnostic
Results Are Valid (21)
tDIAG4
3000
s
VFIRE Supply Diagnostic Delay Time
15 V
≤ VVDIAG_X ≤ 35 V, From CSB ↑ Until High-Side Safing Sensor
Diagnostic Results Are Valid, CVDIAG < 0.015 F
tDIAG6
1000
s
High-Side Safing Sensor Diagnostic Delay Time (21)
15 V
≤ VVDIAG_X ≤ 35 V, From CSB ↑ Until High-Side Safing Sensor
Diagnostic Results Are Valid, CVDIAG < 0.015 F
tDIAG7
1000
s
FET Drivers High- and Low-Side Driver Transistor Diagnostic Delay Time (21)
15 V
≤ VVDIAG_X ≤ 35 V, From CSB ↑ Until Transistor Test Results Are
Valid, CSQUIB_HI = 0.12 F, CSQUIB_LO = 0.12 F, CVDIAG < 0.015 F
tDIAG9
1000
s
VFIRE_RTN Diagnostic Delay Time (21)
From CSB
↑ Until VFIRE_RTN Diagnostic Results Are Valid
tDIAG10
––
300
s
Squib Continuity Diagnostic Delay Time (21)
From CSB
↑ Until VTHSQBCON Diagnostic Results Are Valid
tDIAG11
3000
s
Squib Short Between Firing Loops Diagnostic Delay Time From CSB
↑ Until
VTHSSQB Diagnostic Results Are Valid
tDIAG12
3000
s
FEN INPUT TERMINAL
Minimum Pulse Width
FENFILTER
12
14
16
s
Notes
21.
Guaranteed by Characterization
Table 5. Dynamic 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 =10k ±1%, RR_DIAG = 10 k ±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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