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MC34912BAC Scheda tecnica(PDF) 11 Page - Freescale Semiconductor, Inc

Il numero della parte MC34912BAC
Spiegazioni elettronici  LIN System Basis Chip with DC Motor Pre-driver and Current
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Produttore elettronici  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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Analog Integrated Circuit Device Data
Freescale Semiconductor
11
33912
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
L1, L2, L3 AND L4 INPUT PINS (L1, L2, L3, L4)
Low Detection Threshold
5.5V < VSUP < 27V
VTHL
2.0
2.5
3.0
V
High Detection Threshold
5.5V < VSUP < 27V
VTHH
3.0
3.5
4.0
V
Hysteresis
5.5V < VSUP < 27V
VHYS
0.5
1.0
1.5
V
Input Current(36)
-0.2V < VIN < VS1
IIN
-10
10
µA
Analog Input Impedance(37)
RLXIN
800
1550
k
Analog Input Divider Ratio (RATIOLx = VLx / VADOUT0)
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
RATIOLX
0.95
3.42
1.0
3.6
1.05
3.78
Analog Output offset Ratio
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
VRATIOLx-
OFFSET
-80
-22
0.0
0.0
80
22
mV
Analog Inputs Matching
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
LXMATCHING
96
96
100
100
104
104
%
WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)
External Resistor Range
REXT
20
200
k
Watchdog Period Accuracy with External Resistor (Excluding Resistor
Accuracy)(38)
WDACC
-15
15
%
ANALOG MULTIPLEXER
Internal Chip Temperature Sense Gain
STTOV
10.5
mV/K
VSENSE Input Divider Ratio (RATIOVSENSE = VVSENSE / VADOUT0)
5.5V < VSUP < 27V
RATIOVSENSE
5.0
5.25
5.5
VSENSE Output Related Offset
-40°C < TA < -20°C
OFFSETVSENSE
-30
-45
30
45
mV
ANALOG OUTPUTS (ADOUT0 AND ADOUT1)
Maximum Output Voltage
-5mA < IO < 5mA
VOUT_MAX
VDD -0.35
VDD
V
Minimum Output Voltage
-5mA < IO < 5mA
VOUT_MIN
0.0
0.35
V
Notes
36.
Analog multiplexer input disconnected from Lx input pin.
37.
Analog multiplexer input connected to Lx input pin.
38.
Watchdog timing period calculation formula: tPWD [ms] = 0.466 * (REXT - 20) + 10 (REXT in kΩ)
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 5.5V
≤ V
SUP ≤ 18V, -40°C ≤ TA ≤ 125°C for the 33912 and -40°C ≤ TA ≤ 85°C for the
34912, unless otherwise noted. Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal
conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit


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