参数资料
型号: LM10506TME
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA34
封装: 0.40 MM PITCH, MICRO SMD-34
文件页数: 20/34页
文件大小: 1020K
代理商: LM10506TME
20.10 COMPARATOR
The comparator on the LM10506 takes its inputs from the
VCOMP pin and an internal threshold level which is pro-
grammed by the user. The threshold level is programmable
between 2.0 and 4.0V with a step of 31 mV and a default comp
code of 0x19. The output of the comparator is the IRQ pin. Its
polarity can be changed using Register 0x0E bit 0. If IRQ_po-
larity = 0
Active low (default) is selected, then the output is
low if V
COMP value is greater than the threshold level. The
output is high if the V
COMP value is less than the threshold
level. If IRQ_polarity = 1
Active high is selected then the
output is high if V
COMP value is greater than the threshold lev-
el. The output is low if the V
COMP value is less than the
threshold level. There is some hysteresis when V
COMP tran-
sitions from high to low, typically 60 mV. There is a control bit
in register 0x0B, comparator control, that can double the hys-
teresis value.
30166207
27
www.national.com
LM10506
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