参数资料
型号: MC33794DWBR2
厂商: Freescale Semiconductor
文件页数: 2/18页
文件大小: 0K
描述: IC SENSOR ELECTRIC FIELD 54-SOIC
标准包装: 1,000
类型: 传感器接口
输入类型: 逻辑
输出类型: 逻辑
接口: ISO9141
电流 - 电源: 7mA
安装类型: 表面贴装
封装/外壳: 54-BSSOP(0.295",7.50mm 宽)裸露焊盘
供应商设备封装: 54-SOIC W EP
包装: 带卷 (TR)
Sensors
10
Freescale Semiconductor
MC33794
DYNAMIC ELECTRICAL CHARACTERISTICS
ELECTRODE SELECTION
Table 4. Dynamic Electrical Characteristics
Characteristics noted under conditions 9.0 V ≤ VPWR ≤ 18 V, -40°C TA 85°C unless otherwise noted. Typical values noted
reflect the approximate parameter means at TA = 25°C under normal conditions unless otherwise noted. Voltages are relative
to GND unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
OSC
OSC Frequency Stability (12), (13)
fSTAB
10
%
OSC Center Frequency
R_OSC = 39 k
fOSC
120
kHz
Harmonic Content (12)
2nd through 4th Harmonic Level
5th and Higher
OSCHARM
-20
-60
dB
Shield Driver
Shield Driver Maximum Harmonic level below Fundamental (12)
10 pF ≤ CLOAD ≤ 500 pF
SDHARM
-20
dB
Shield Driver Gain Bandwidth Product (12)
Measured at 120 kHz
SDGBW
–4.5
MHz
POR
POR Time-Out Period
tPER
9.0
50
ms
Watchdog
Watchdog Time-Out Period
tWDPER
50
68
250
ms
Watchdog Reset Hold Time
tWDHLD
9.0
50
ms
Lamp Driver
Short Circuit to Battery Survival Time
tSCB
3.0
ms
Notes
12.
Verified by design and characterization. Not tested in production.
13.
Does not include errors in external reference parts.
Table 5. Electrode Selection
TERMINAL/SIGNAL
D
C
B
A
Source (internal)
0
E1
0
1
E2
0
1
0
E3
0
1
E4
0
1
0
E5
0
1
0
1
E6
0
1
0
E7
0
1
E8
1
0
E9
1
0
1
REF_A
1
0
1
0
REF_B
1
0
1
Internal OSC
1
0
Internal OSC after 22 k
1
0
1
Internal Ground
1
0
Reserved
1
Table 5. Electrode Selection (continued)
TERMINAL/SIGNAL
D
C
B
A
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