MC33912_10 Datasheet, PDF (58/94 Pages) Freescale Semiconductor, Inc – LIN System Basis Chip with DC Motor Pre-driver and Current Sense

ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
MC33912BAC / MC34912BAC
Table 35. Static Electrical Characteristics (continued)
Characteristics noted under conditions 5.5 V ≤ V_SUP ≤ 18 V, -40°C ≤ T_A ≤ 125°C for the 33912 and -40°C ≤ T_A ≤ 85°C for the
34912, unless otherwise noted. Typical values noted reflect the approximate parameter mean at T_A = 25°C under nominal
conditions, unless otherwise noted.
Characteristic
L1, L2, L3 AND L4 INPUT PINS (L1, L2, L3, L4)
Symbol
Min
Typ
Max
Unit
Low Detection Threshold
5.5 V < V_SUP < 27 V
High Detection Threshold
5.5 V < V_SUP < 27 V
Hysteresis
5.5 V < V_SUP < 27 V
Input Current⁽¹⁰⁸⁾
-0.2 V < V_IN < VS1
Analog Input Impedance⁽¹⁰⁹⁾
Analog Input Divider Ratio (RATIO_Lx = V_Lx / V_ADOUT0)
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
Analog Output offset Ratio
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
Analog Inputs Matching
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
V_THL
V_THH
V_HYS
I_IN
R_LXIN
RATIO_LX
V_RATIOLx-
OFFSET
LX_MATCHING
2.0
3.0
0.5
-10
800
0.95
3.42
-80
-22
96
96
2.5
3.5
1.0
–
1550
1.0
3.6
0.0
0.0
100
100
V
3.0
V
4.0
V
1.5
µA
10
–
kΩ
1.05
3.78
mV
80
22
%
104
104
WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)
External Resistor Range
R_EXT
20
–
200
kΩ
Watchdog Period Accuracy with External Resistor (Excluding Resistor
Accuracy)⁽¹¹⁰⁾
WD_ACC
-15
–
15
%
ANALOG MULTIPLEXER
Internal Chip Temperature Sense Gain
VSENSE Input Divider Ratio (RATIO_VSENSE = V_VSENSE / V_ADOUT0)
5.5 V < V_SUP < 27 V
VSENSE Output Related Offset
-40°C < T_A < -20°C
S_TTOV
–
RATIO_VSENSE
5.0
OFFSET_VSENSE
-30
-45
10.5
5.25
–
–
–
mV/K
5.5
30
mV
45
ANALOG OUTPUTS (ADOUT0 AND ADOUT1)
Maximum Output Voltage
-5.0 mA < I_O < 5.0 mA
Minimum Output Voltage
-5.0 mA < I_O < 5.0 mA
V_{OUT_MAX}
V_DD -0.35
–
V_{OUT_MIN}
0.0
–
V
V_DD
V
0.35
Notes
108. Analog multiplexer input disconnected from Lx input pin.
109. Analog multiplexer input connected to Lx input pin.
110. Watchdog timing period calculation formula: t_PWD [ms] = 0.466 * (R_EXT - 20) + 10 (R_EXT in kΩ)
33912
58
Analog Integrated Circuit Device Data
Freescale Semiconductor