参数资料
型号: MC34164P-5RPG
厂商: ON Semiconductor
文件页数: 6/12页
文件大小: 0K
描述: IC SENSOR UNDERVOLT 5V TO-226AA
产品变化通告: Product Obsolescence 07/Jul/2010
标准包装: 2,000
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极或开路集电极
复位: 低有效
电压 - 阀值: 4.33V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: TO-226-3、TO-92-3(TO-226AA)成形引线
供应商设备封装: TO-92-3
包装: 带盒(TB)
其它名称: MC34164P-5RPGOS
MC34164, MC33164, NCV33164
Power
Supply
I in
R H
V in
R L
Reset
Microprocessor
Circuit
V H
(mV)
60
103
Test Data
D V th R H
(mV) ( W )
0 0
1.0 100
R L
(k W )
43
10
123
160
155
1.0
1.0
2.2
100
100
220
6.8
4.3
10
1.2 V ref
V H ≈
4.3 R H
R L
+ 0.06
199
280
262
2.2
2.2
4.7
220
220
470
6.8
4.3
10
MC3X164-5
GND
D V th(lower) ≈ 10 R H x 10 - 6
where: R H ≤ 1.0 k W
43 k W ≥ R L ≥ 4.3 k W
306
357
421
530
4.7
4.7
4.7
4.7
470
470
470
470
8.2
6.8
5.6
4.3
Comparator hysteresis can be increased with the addition of resistor R H . The hysteresis equation has been simplified and does not account for the change of input current
I in as V in crosses the comparator threshold (Figure 8). An increase of the lower threshold D V th(lower) will be observed due to I in which is typically 10 m A at 4.3 V. The
equations are accurate to ± 10% with R H less than 1.0 k W and R L between 4.3 k W and 43 k W .
Figure 15. Low Voltage Microprocessor Reset With Additional Hysteresis
(MC3X164 ? 5 Shown)
Power
Supply
Input
1.0 k
Input
Reset
Reset
Solar
Cells
1.2 V ref
1.2 V ref
GND
GND
Figure 16. Voltage Monitor
Figure 17. Solar Powered Battery Charger
V CC
R L
4.3V
270
MTP3055EL
Input
Reset
Overheating of the logic level power MOSFET due to insufficient
gate voltage can be prevented with the above circuit. When the
input signal is below the 4.3 V threshold of the MC3X164-5, its
1.2 V ref
output grounds the gate of the L 2 MOSFET.
GND MC3X164-5
Figure 18. MOSFET Low Voltage Gate Drive Protection Using the MC3X164 ? 5
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