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參數(shù)資料
| 型號(hào)： | MC33797 |
| 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)： | 29/32頁 |
| 文件大小： | 639K |
| 代理商： | MC33797 |
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Analog Integrated Circuit Device Data
6
Freescale Semiconductor
33797
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics
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
INPUT VOLTAGE (VDD)
Input Voltage
VDD
4.57
5.0
5.25
V
FET DRIVERS
Leakage Current at Minimum High Side Driver Breakdown Voltage
IDHSD
–39
100
A
Leakage Current at Minimum Low Side Driver Breakdown Voltage
IDLSD
–65
100
A
High-Side Driver Current Limit Range Set via Rlimit Resistor with Low
Battery Condition
tON ≤ 4.0 ms, RR_LIMIT_X = 10 k, 5.0 V ≤ VVFIRE ≤ 7.0 V, RSQUIB =
2.0
IHS(LBAT)
1.09
1.4
2.9
A
High-Side Driver Low Current Limit Range Set via Rlimit Resistor
tON ≤ 2.6 ms, RR_LIMIT_X = RL=4.32 k, 7.0 V ≤ VVFIRE ≤ 35 V
IHS(LOSET)
0.81
0.93
1.03
A
High-Side Driver Nominal Current Limit Range Set via Rlimit Resistor
tON ≤ 2.6 ms, RR_LIMIT_X = RL=10 k, 7.0 V ≤ VVFIRE ≤ 35 V
IHS(NOM)
1.21
1.4
1.54
A
High-Side Driver High Current Limit Range Set via Rlimit Resistor
tON ≤ 0.8 ms, RR_LIMIT_X = RL=45.3 k, 7.0 V ≤ VVFIRE ≤ 35 V
IHS(HISET)
1.76
2.0
2.24
A
Low-Side Drivers Current Limit
7.0 V
= SQLO < 16 V
SQLO = 16 V
ILS
2.1
2.24
2.47
2.65
3.0
3.14
A
High-Side Driver Current Limit Detect Threshold (8)
7.0 V
≤ VVFIRE ≤ 35 V
IMEAS
IHS x0.85
–
IHS x1.0
A
Driver ON Resistance (per FET)
VVFIRE = 5.0 V, ILOAD = 0.5 A
RDS(ON)
––
1.0
VDD Operating Current
Standby (Diagnostics off, SPI “OFF”)
No Fire—Worst Case Diagnostics ($83/$2F Command Active)
Firing (with All FET Drivers “ON”)
IDD
–
2.0
15
4.3
5.0
17.5
6.0
mA
VFIRE Quiescent Current (9)
With Diagnostics Off
IRRE
22
34
55
A
VDIAG Current During Squib Diagnostics
With Squib Resistance Diagnostics Active
IRRE
32
37
43
mA
VFIRE Operating Current During Firing
Excluding Firing Current, IHS = 2.0 A
IRRE
–1.8
10
mA
VDIAG Operating Current During Firing
Per VDIAG terminal, excluding Firing Current, IHS = 2.0 A
IRRE
–
140
200
A
Notes
8.
Guaranteed by design
9.
VFIRE quiescent current includes any leakage current through squib.
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