mc33912 Freescale Semiconductor, Inc, mc33912 Datasheet - Page 11

• Manufacturer Part Number: mc33912
• Description: Lin System Basis Chip With Dc Motor Pre-driver And Current Sense
• Manufacturer: Freescale Semiconductor, Inc

Table 3. Static Electrical Characteristics (continued)
34912, unless otherwise noted. Typical values noted reflect the approximate parameter mean at T
conditions, unless otherwise noted.
Analog Integrated Circuit Device Data
Freescale Semiconductor
L1, L2, L3 AND L4 INPUT PINS (L1, L2, L3, L4)
WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)
ANALOG MULTIPLEXER
ANALOG OUTPUTS (ADOUT0 AND ADOUT1)
Notes
Low Detection Threshold
High Detection Threshold
Hysteresis
Input Current
Analog Input Impedance
Analog Input Divider Ratio (RATIO
Analog Output offset Ratio
Analog Inputs Matching
External Resistor Range
Watchdog Period Accuracy with External Resistor (Excluding Resistor
Accuracy)
Internal Chip Temperature Sense Gain
VSENSE Input Divider Ratio (RATIO
VSENSE Output Related Offset
Maximum Output Voltage
Minimum Output Voltage
36.
37.
38.
Characteristics noted under conditions 5.5V ≤ V
5.5V < V
5.5V < V
5.5V < V
-0.2V < V
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
5.5V < V
-40°C < T
-5mA < I
-5mA < I
Analog multiplexer input disconnected from Lx input pin.
Analog multiplexer input connected to Lx input pin.
Watchdog timing period calculation formula: t
(38)
SUP
SUP
SUP
SUP
O
O
IN
A
(36)
< 5mA
< 5mA
< -20°C
< VS1
< 27V
< 27V
< 27V
< 27V
(37)
Characteristic
Lx
VSENSE
= V
Lx
/ V
= V
ADOUT0
VSENSE
PWD
)
SUP
/ V
[ms] = 0.466 * (R
ADOUT0
≤ 18V, -40°C ≤ T
)
OFFSET
EXT
RATIO
LX
V
V
V
RATIO
Symbol
WD
- 20) + 10 (R
OFFSET
OUT_MAX
MATCHING
RATIOLx-
S
OUT_MIN
R
R
A
V
V
V
TTOV
THH
HYS
I
LXIN
THL
EXT
IN
≤ 125°C for the 33912 and -40°C ≤ T
VSENSE
ACC
VSENSE
LX
EXT
V
DD
0.95
3.42
in kΩ)
Min
800
-10
-80
-22
-15
-30
-45
2.0
3.0
0.5
5.0
0.0
96
96
20
STATIC ELECTRICAL CHARACTERISTICS
–
-0.35
ELECTRICAL CHARACTERISTICS
1550
10.5
5.25
Typ
100
100
2.5
3.5
1.0
1.0
3.6
0.0
0.0
A
–
–
–
–
–
–
–
= 25°C under nominal
Max
1.05
3.78
V
0.35
104
104
200
3.0
4.0
1.5
5.5
10
80
22
15
30
45
–
–
DD
A
≤ 85°C for the
mV/K
Unit
mV
mV
k
µA
kΩ
%
%
V
V
V
V
V
Ω
33912
11