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L9680 Datasheet(PDF) 269 Page - STMicroelectronics

Part # L9680
Description  Automotive advanced airbag IC for mid/high end applications
PDF  277 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9680 Datasheet(HTML) 269 Page - STMicroelectronics

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DocID029257 Rev 1
269/277
L9680
Electrical characteristics
276
16.22
Analog to digital converter
All electrical characteristics are valid for the following conditions unless otherwise noted:
40 °C
 Ta  +95 °C, VINGOOD0  VIN  35 V.
6TMASK_STUP_ON
Diagnostic mask
delay after switch ON
CGPOX = 100 nF typ
136
-
200
μs
7TMASK_STUP_OFF
Diagnostic mask
delay after switch
OFF
CGPOX = 100 nF typ
520
-
584
μs
8TFLT_TSD
Thermal shutdown
filter time
--
-
10
μs
9FPWM
GPO PWM frequency Design Info
-
125
Hz
10
DCPWM
GPO PWM duty cycle Increment step = 1.6%
0
-
100
%
Table 69. GPO driver interface – AC specifications (continued)
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 70. Analog to digital converter
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1VADC_RANGE ADC input voltage range
-
0.1
-
2.5
V
2VADC_REF
ADC reference voltage
-
-1.5%
2.5
+1.5%
V
3
ADC_RES
ADC resolution (1)
Design Info
-
10
-
bit
4
DNL
Differential non linearity
error (DNL)
Separation between adjacent
levels, measured bit to bit of
actual and an ideal output step.
No missing codes
-1
-
+1
LSB
5
INL
Integral non linearity error
(INL)
Maximum difference between the
actual analog value at the
transition between 2 adjacent
steps and its ideal value
-3
-
+3
LSB
6EQUANT
Quantization error
Design Info
-0.5
-
0.5
LSB
7
TotErr
Total error
Includes INL, DNL, ADC
Reference voltage tolerance and
quantization error
-15
-
+15
LSB
8
TotErr_0v1
ADC total error for 0.1 V
input voltage
-
-5
-
+5
LSB
9
TotErr_2v4
ADC total error for 2.4 V
input voltage
-
-15
-
+15
LSB



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