参数资料
型号: MC34912BAC
厂商: Freescale Semiconductor
文件页数: 13/95页
文件大小: 0K
描述: IC SYSTEM BASIS CHIP LIN 32-LQFP
标准包装: 250
应用: 系统基础芯片
电流 - 电源: 4.5mA
电源电压: 5.5 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP(7x7)
包装: 托盘
MC33912G5AC / MC34912G5AC
Table 4. Static Electrical Characteristics (continued)
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
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
Symbol
Min
Typ
Max
Unit
L1, L2, L3 AND L4 INPUT PINS (L1, L2, L3, L4)
Low Detection Threshold (35)
V THL
V
5.5 V < V SUP < 27 V
High Detection Threshold (35)
5.5 V < V SUP < 27 V
Hysteresis (35)
5.5 V < V SUP < 27 V
Input Current (36)
-0.2 V < V IN < VS1
V THH
V HYS
I IN
2.0
3.0
0.4
-10
2.5
3.5
0.8
3.0
4.0
1.4
10
V
V
μA
Analog Input Impedance (37)
R LXIN
800
1300
2000
k ?
Analog Input Divider Ratio (RATIO Lx = V Lx / V ADOUT0 )
RATIO LX
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
Analog Output offset Ratio
V RATIOLx-
0.95
3.42
1.0
3.6
1.05
3.78
mV
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
Analog Inputs Matching
LXDS (Lx Divider Select) = 0
LXDS (Lx Divider Select) = 1
OFFSET
LX MATCHING
-80
-22
96
96
6.0
2.0
100
100
80
22
104
104
%
WINDOW WATCHDOG CONFIGURATION PIN
(WDCONF) (38)
External Resistor Range
Watchdog Period Accuracy with External Resistor (Excluding Resistor
Accuracy) (39)
R EXT
WD ACC
20
-15
200
15
k ?
%
ANALOG MULTIPLEXER
Temperature Sense Analog Output Voltage
T A = -40°C
T A = 25°C
T A = 125°C
V ADOUT0_TEMP
2.0
2.8
3.6
-
3.0
-
2.8
3.6
4.6
V
Temperature Sense Analog Output Voltage per characterization
V ADOUT0_25
3.1
3.15
3.2
V
T A = 25°C
Internal Chip Temperature Sense Gain
Internal Chip Temperature Sense Gain per characterization at 3
temperatures (40) See Figure 16, Temperature Sense Gain
S TTOV
S TTOV_3T
9.0
9.9
10.5
10.2
12
10.5
mV/K
mV/K
VSENSE Input Divider Ratio (RATIO VSENSE = V VSENSE / V ADOUT0 )
RATIO VSENSE
5.5 V < V SUP < 27 V
5.0
5.25
5.5
Notes
35.
36.
37.
38.
39.
40.
The unused Lx pins must be connected to ground.
Analog multiplexer input disconnected from Lx input pin.
Analog multiplexer input connected to Lx input pin.
For V SUP 4.7 V to 18 V
Watchdog timing period calculation formula: t PWD [ms] = [0.466 * (R EXT - 20)] + 10 with (R EXT in k ??
These limits have been defined after laboratory characterization on 3 lots and 30 samples. These tighten limits could not be guaranteed
by production test.
33912
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
13
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