參數(shù)資料
型號： TD230IDT
廠商： STMICROELECTRONICS
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封裝： MICRO, PLASTIC, SO-16
文件頁數(shù)： 3/15頁
文件大?。?/td> 497K
代理商： TD230IDT
TD230
11/15
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Figure 9A: PCB (not to scale)
Figure 9C: Schematic
Figure 9B : Silkscreen
4. The SHUTDOWN pin is an open drain CMOS/
TTL compatible output which should be tied to the
TTL compatible input of an eventual control block.
The absolute maximum rating of this output is 7V.
In the case of a visual alarm, a LED is likely to be
tied to the positive power supply which can be de-
structive for the Shutdown output if the power sup-
ply is over 7V. An easy way to eliminate this is to
add a 6V zener diode between the Shutdown out-
put and the Ground as shown on figure 10.
5. The time constant of the protection mode (given
by the charge of CTRIP
1/2 capacitors) must be
greater than the time constant of the restart at-
tempts (given by the charge of the C
SS 1/2 soft start
capacitors). This condition can be described as
follows :
u V
SP1/2 x CTRIP1/2 / IP/N2 > VTH1/2 x
(C
SS1/2+CISS1/2) / IP/N1
Do
no
t u
se
for
new
design
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