参数资料
型号: MC33161DR2
厂商: ON Semiconductor
文件页数: 14/18页
文件大小: 0K
描述: IC MONITOR VOLTAGE UNIV 8SOIC
标准包装: 1
类型: 多压监控器
监视电压数目: 2
输出: 开路漏极或开路集电极
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 剪切带 (CT)
其它名称: MC33161DR2OSCT
MC34161, MC33161, NCV33161
470 m H
V in
12V
330
+
8
470
MPS750
1N5819
+
1000
V O
5.0V/250mA
2.54V
1
Reference
0.01
1.8k
-
0.01
4.7k
7
+
+
1.6k
2
+
+
-
1.27V
2.8V
-
6
+
+
3
+
+
-
0.6V
5
1.27V
47k
4
0.005
Figure 27. Step ? Down Converter
Test
Line Regulation
Load Regulation
Output Ripple
Efficiency
Conditions
V in = 9.5 V to 24 V, I O = 250 mA
V in = 12 V, I O = 0.25 mA to 250 mA
V in = 12 V, I O = 250 mA
V in = 12 V, I O = 250 mA
Results
40 mV = ± 0.1%
2.0 mV = ± 0.2%
50 mVpp
87.8%
The above figure shows the MC34161 configured as a step ? down converter. Channel 1 monitors the output voltage while Channel
2 performs the oscillator function. Upon initial powerup, the converters output voltage will be below nominal, and the output of Channel
1 will allow the oscillator to run. The external switch transistor will eventually pump ? up the output capacitor until its voltage exceeds
the input threshold of Channel 1. The output of Channel 1 will then switch low and disable the oscillator. The oscillator will commence
operation when the output voltage falls below the lower threshold of Channel 1.
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