參數(shù)資料
型號(hào)： MCZ33797EK
廠商： 飛思卡爾半導(dǎo)體(中國)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
文件頁數(shù)： 9/34頁
文件大小： 290K
代理商： MCZ33797EK
Analog Integrated Circuit Device Data
Freescale Semiconductor
9
33797
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
RST INPUT PIN (ACTIVE LOW)
(11)
System Reset Threshold
V
DDRST
–
–
4.1
V
Internal Current Pull-Down
I
RST
-6
-10
-15
μ
A
RST
Logic Low Level
V
RST(LO)
0.0
2.5
0.35 x V
DD
V
RST
Logic High Level
V
RST(HI)
0.65 x V
DD
2.5
1.0 x V
DD
V
SQUIB DIAGNOSTICS ($D0–$D3 COMMANDS)
(12)
Diagnostic Current Through Squib
(13)
I
DIAG
30
34
40.5
mA
Resistance Threshold 1
(13)
R
TH1
1.2
1.4
1.6
Resistance Threshold 2
(13)
R
TH2
1.6
1.8
2.1
Resistance Threshold 3
(13)
R
TH3
2.1
2.4
2.6
Resistance Threshold 4
(13)
R
TH4
2.6
2.9
3.2
Resistance Threshold 5
(13)
R
TH5
3.3
3.7
4.4
Resistance Threshold 6
(13)
R
TH6
4.6
5.4
6.0
Resistance Threshold 7
(13)
R
TH7
5.7
6.5
7.1
Resistance Threshold 8
(13)
R
TH8
6.7
7.8
8.5
SQUIB SHORT-TO-BATTERY GROUND DIAGNOSTICS AND SQUIB HARNESS SHORT-TO-BATTERY GROUND DIAGNOSTICS WITH
AN OPEN SQUIB ($C1, $C3 COMMANDS)
Voltage Threshold for SQB
_
LO and SQB_HI Shorted to V
PWR
7.0 V
≤
V
VDIAG_X
≤
35 V
V
THSB
5.7
6.0
6.4
V
Voltage Threshold for SQB
_
LO and SQB_HI Shorted to Ground
7.0 V
≤
V
VDIAG_X
≤
35 V
V
THSG
1.3
1.4
1.6
V
Current Sink Shorts Measurements I_SQB_LO_XX
(14)
1.0 V
≤
SENSE_XX
≤
16 V, Typical = 800
μ
A
I
SINKSHRTS
-500
-800
-900
μ
A
Current Source Shorts Measurements I_SQB_HI_XX
(14)
1.0 V
≤
SENSE_XX
≤
16 V, 7.0 V
≤
V
VDIAG_X
≤
35 V
I
SOURSHRTS
1.7
3.5
3.7
mA
Voltage Threshold for SQB_LO or SQB_HI Shorted to V
PWR
with an Open
Squib using $C3 Command
R
SQUIB
= Open
V
THSB_SO
5.75
–
6.75
V
Notes
11
12
Reset Bar range of operation: The minimum system reset bar threshold/active will be set to “0” for a value of V
DD
≤
4.1 V.
By changing the R
_
DIAG resistor value, the resistance thresholds can be varied in a linear relationship.The R
_
DIAG resistance can 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
, page
12
.
R
R_DIAG
= 10 k
±1.0%
XX = 1A, 1B, 2A, or 2B.
13
14
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 4.75 V
≤
V
DD
≤
5.25 V; 7.0 V
≤
V
VFIRE_XX
≤
35 V; V
VDIAG_X
= V
VFIRE_XX
; FEN 1 = FEN 2
= V
DD
; R
R_LIMIT_X
= 10 k
±1%, R
R_DIAG
= 10 k
±1%, -40
°
C
≤
T
A
≤
+85
°
C, GND = 0 unless otherwise noted. Typical values
noted reflect the approximate parameter means at T
A
= 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
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