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L9660 数据表(PDF) 13 Page - STMicroelectronics

部件名 L9660
功能描述  Quad squib driver ASIC for safety application
PDF  49 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9660 数据表(HTML) 13 Page - STMicroelectronics

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L9660
Electrical specifications
48
tFETtimeout
FET time-out
Normal Conditions
-
-
100
µs
High squib resistance diagnostics
RSQHIZ
High load resistance
threshold
-1.07
-
2.1
k
IHR
High resistance current
threshold
-ISTG
mA
tDIAGTIMEOUT MOS diagnostic delay time
From/CS until test results
are valid, CSQHx = 0.12µF
CSQLx = 0.12µF
--
300
µs
Squib resistance diagnostics
VOH
Output voltage AOUT
High saturation voltage;
IAOUT = -500µA
VDD-
0.2
--
V
VOL
Low Saturation Voltage;
IAOUT = +500µA
--
0.2
V
IZ
Tri-State Current AOUT
AOUT = VDD
-
-
1
µA
AOUT = 0V
-1
-
µA
RSQB RANGE Load resistance range
-
0
-
10.0
VAOUT
Resistance measurement
analog output tolerance
VAOUT =
0
  R
SQB < 3.5
VAOUT-
0.095V
-
VAOUT+
0.095V
V
3.5
  R
SQB  10
VAOUT·
0.95V
-
VAOUT·
1.05V
V
ISRC
Resistance measurement
current source
VDD = 5.0V; VSDIAG = 7.0V
to 37V
38
-
42
mA
ISINK
Resistance measurement
current sink
IPD OFF, VSQLx = 4 V
45
-
57
mA
ISLEW
Rmeas current di/dt
30% - 70% of ISRC
2
-
11
mA/µs
Vcmpr
Voltage threshold on squib
pin to shutdown ISRC
-
2.65
-
3.25
V
tisrcshtdwn
Shutdown time
Guaranteed by design
-
-
30
µs
VLSDrsqb
LSD (V_SQL) voltage during
resistance measure
-
0.8
-
2.2
V
tR_WAIT
Rmeas wait time
Wait time before AOUT
voltage is stable for ADC
reading R AOUT= 5.1k
;
CAOUT=10nF
-
-
300
µs
FENx input pins
tFENfilter
Minimum pulse width
-
12
-
16
µs
IFENPD
Internal pull-down current
VIN = VIL to VDD
20
-
50
µA
Table 7. Squib deployment drivers and diagnostics - DC electrical characteristics (continued)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VDD
1
9.75
-----------
0.08
R
SQB
---------------


+



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