ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 5.5V ≤ VSUP ≤ 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
L1, L2, L3 AND L4 INPUT PINS (L1, L2, L3, L4)
Low Detection Threshold
5.5V < VSUP < 27V
VTHL
VTHH
VHYS
IIN
V
V
2.0
3.0
0.5
2.5
3.5
1.0
3.0
4.0
1.5
High Detection Threshold
5.5V < VSUP < 27V
Hysteresis
V
5.5V < VSUP < 27V
Input Current(36)
µA
kΩ
-0.2V < VIN < VS1
-10
–
10
–
Analog Input Impedance(37)
RLXIN
800
1550
Analog Input Divider Ratio (RATIOLx = VLx / VADOUT0
LXDS (Lx Divider Select) = 0
)
RATIOLX
0.95
3.42
1.0
3.6
1.05
3.78
LXDS (Lx Divider Select) = 1
Analog Output offset Ratio
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
VRATIOLx-
mV
%
OFFSET
-80
-22
0.0
0.0
80
22
Analog Inputs Matching
LXMATCHING
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
96
96
100
100
104
104
WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)
External Resistor Range
R
20
–
–
200
15
kΩ
EXT
Watchdog Period Accuracy with External Resistor (Excluding Resistor
Accuracy)(38)
WD
-15
%
ACC
ANALOG MULTIPLEXER
Internal Chip Temperature Sense Gain
STTOV
–
10.5
5.25
–
mV/K
mV
VSENSE Input Divider Ratio (RATIOVSENSE = VVSENSE / VADOUT0
5.5V < VSUP < 27V
)
RATIOVSENSE
5.0
5.5
VSENSE Output Related Offset
-40°C < TA < -20°C
OFFSETVSENSE
-30
-45
–
–
30
45
ANALOG OUTPUTS (ADOUT0 AND ADOUT1)
Maximum Output Voltage
-5mA < IO < 5mA
VOUT_MAX
V
V
VDD -0.35
0.0
–
–
VDD
0.35
Minimum Output Voltage
-5mA < IO < 5mA
VOUT_MIN
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)
33912
Analog Integrated Circuit Device Data
Freescale Semiconductor
11
FREESCALE [ Freescale ]
