參數(shù)資料
型號: LM3812
廠商: National Semiconductor Corporation
英文描述: Precision Current Gauge IC with Ultra Low Loss Sense Element and PWM Output
中文描述: 精密電流計IC,與超低的失落感元素和PWM輸出
文件頁數(shù): 7/14頁
文件大?。?/td> 258K
代理商: LM3812
Typical Performance Characteristics
Supply bypass capacitor is 0.1 μF and filter capacitor is
0.1 μF. (Continued)
Typical Application Circuits
In the application circuits, the 0.1 μF ceramic capacitor between pins 1 and 8
is used for bypassing, and the 0.1 μF ceramic capacitor between pins 3 and 4 is used for filtering. Shutdown (SD) is tied to
V
DD
through a 10 k
resistor.
Error vs Current (LM3812-1.0 and LM3813-1.0)
(Note 10)
DS100122-27
Error vs Current (LM3812-7.0 and LM3813-7.0)
(Note 10)
DS100122-31
Note 10:
These curves represent a statistical average such that the noise is insignificant.
DS100122-5
FIGURE 1. High Side Sense
DS100122-6
FIGURE 2. Low Side Sense
www.national.com
7
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