參數(shù)資料
型號(hào)： L6911E
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
封裝： SO-20
文件頁數(shù)： 3/34頁
文件大?。?/td> 558K
代理商： L6911E
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
L6911E
Device description
11/34
Connecting RT to VCC = 12V or to VCC = 5V the frequency is reduced (current is forced into
the pin), according to the following relationships:
Equation 2
Equation 3
Switching frequency variations vs. RT are reported in Figure 3 on page 11.
Note:
That forcing a 50
A current into this pin, the device stops switching because no current is
delivered to the oscillator.
Figure 3.
Switching frequency variations vs. RT
f
S
200kHz
4.306 10
7
R
T k
()
-----------------------------
+
=
VCC = 12V
f
S
200kHz
15 10
7
R
T k
()
--------------------
+
=
VCC = 5V
10
100
1000
Frequency [kHz]
10
100
1000
10000
Res
istance
[k
Ohm]
RT to GND
RT to VCC=12V
RT to VCC=5V
相關(guān)PDF資料
PDF描述
L6911ETR 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
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