参数资料
型号: OPENLPPOL-EVB
厂商: Silicon Laboratories Inc
文件页数: 20/36页
文件大小: 0K
描述: BOARD EVAL OPEN-LOOP POL
标准包装: 1
主要目的: 电源管理,电流感应
嵌入式:
已用 IC / 零件: Si8410,Si8512,Si8540
主要属性: 单相 POL,100 ~ 500 kHz 切换频率
次要属性: 20 ~ 80% 可变占空比
已供物品:
产品目录页面: 628 (CN2011-ZH PDF)
其它名称: 336-1919
Si85xx
3.3.6. Output Over-Range
The Si85xx can be over-ranged by more than 100% with no adverse effects. For instance, if the Si8512 (a 10 A
nominal full-scale device) has a 15 A peak current applied, then the output voltage (OUT) will be 3 V (assuming
VDD = 5 V). If a 10 A peak current is applied, then the output returns to the nominal 2 V output. The head room of
OUT is VDD–1.4 V. Figure 17 illustrates the head room limitation of the Si85xx versus supply.
5
OUT (V)
4
3
3.6 V
VDD = 5 V
2
1
0
VDD = 2.7 V
50%
100%
150%
200%
250%
I (Amps) Percent Nominal Full-Scale Input
Figure 17. Headroom Limitation
20
Preliminary Rev. 0.4
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