参数资料
型号: MC79M12BTG
厂商: ON Semiconductor
文件页数: 5/9页
文件大小: 0K
描述: IC REG LDO -12V .5A TO220AB
标准包装: 50
稳压器拓扑结构: 负,固定式
输出电压: -12V
输入电压: 可下调至 -35V
电压 - 压降(标准): 1.1V @ 500mA
稳压器数量: 1
电流 - 输出: 500mA
工作温度: -40°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-220-3
供应商设备封装: TO-220AB
包装: 管件
其它名称: MC79M12BTG-ND
MC79M12BTGOS
MC79M00 Series
1.0 m F 1.0 m F
D1
MBRS140
Protection Diodes
When external capacitors are used with MC79M00 series
regulator it is sometimes necessary to add protection diodes
to prevent the capacitors from discharging through low
current points into the regulator or from output polarity
reversals . Generally , no protection diode is required for
values of output capacitance less then 10 m F. Figure 2 shows
the MC79M15 with the recommended protection diodes.
? Opposite Polarity Protection
Diode D 1 protects the regulator from output polarity
reversals during startup, power off and short-circuit
operation.
? Reverse-bias Protection
Diode D 2 prevents output capacitor from discharging thru
the MC79M15 during an input short circuit or fast switch off
of power supply.
Gnd Gnd
+ +
MBRS140
or Equiv
MC79M15
- 20 V -15 V
Input Output
D2
or Equiv
Figure 2. Protection Diodes
http://onsemi.com
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