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參數(shù)資料
| 型號(hào)： | SL5002P |
| 廠商： | AUK Corp |
| 英文描述： | TONE RINGER |
| 中文描述： | 音調(diào)振鈴 |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 302K |
| 代理商： | SL5002P |
KSI-W012-001
6
Application Circuits And Information (continued)
3. Enabling Oscillation of the 5001P circuit for Supply Voltages less than V
CC(INI).
The 5001P Circuit can oscillate when
powered from supply voltages in the range
V
SUS
≤
V
CC
≤
V
CC(INI).
Oscillation is ensured by
forcing a current I
TR
(10uA
≤
ITR
≤
1mA) into
pin2 should be exceeded V
TR
by the sum of
zener voltage of D
3
the VBE of Q
1
and the
VBE of Q
2
(Typ. 11V). The required current
drive can be provided by connecting a
resistor R
E
(20k
≤
RE
≤
(V
CC
-11)/10M
)
between pin1 and V
CC
.
4. Reducing the Effective Value of V
CC(INI)
for the 5001P circuit
To operate the 5001P circuit from a DC 12V
supply, R
E
should be typically 50k
. This
operation can also be used to reduce the
effective value of the V
CC(INI),
by inserting a
zener diode in series with R
E
. Then, this
initiating voltage V
CC(INI)
is V
IR
+ V
Z
+ 10R
E
SL5001P/2P
SL5002P
1
8
2
7
3
6
4
5
R
E
V cc
GND
V
TR
I
TR
DBL5001
SL5002P
1
8
2
7
3
6
4
5
R
E
Vcc
GND
V
TR
I
TR
V
Z
SL5001P
SL5001P
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