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參數(shù)資料
| 型號： | UA723MFK |
| 英文描述： | Very high speed low power RS-485/RS-422 transceiver |
| 中文描述： | 積極可調(diào)電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 10/17頁 |
| 文件大小： | 469K |
| 代理商： | UA723MFK |
μ
A723
PRECISION VOLTAGE REGULATORS
SLVS057D – AUGUST 1972 – REVISED JULY 1999
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
R2
VI
15 pF
2N5004
1 k
(see Note A)
R1
2N3997
1N4005
1 M
100
μ
F
1 k
220
0.1
μ
F
L = 1.2 mH
(see Note B)
REF
VCC+
VC
OUTPUT
VZ
CURR LIM
CURR SENS
IN+
VCC–FREQ COMP
IN–
μ
A723
NOTES: A. The device requires a minimum of 9 V between VCC+ and VCC– when VO is equal to or more positive than –9 V.
B. L is 40 turns of No. 20 enameled copper wire wound on Ferroxcube P36/22-3B7 potted core, or equivalent, with a 0.009-inch
air gap.
Regulated Output,
VO
R3 =
3 k
R4 =
3 k
Figure 10. Negative Switching Regulator
1000 pF
VI
2 k
Input From
Series 54/74 Logic
2 k
2N4422
R1
R2
REF
VCC+
VC
OUTPUT
VZ
CURR LIM
CURR SENS
IN+
VCC– FREQ COMP
IN–
RSC
μ
A723
NOTE A: A current-limiting transistor can be used for shutdown if current limiting is not required.
Regulated Output,
VO
Figure 11. Remote Shutdown Regulator With Current Limiting
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| UA723CH | +/- 15 kV ESD protected 3 to 5.5 V, 400 Kbps, RS-232 transceiver with auto power-down |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UA723MFKB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| UA723MJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Adjustable Voltage Regulator |
| UA723MJB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Adjustable Voltage Regulator |
| UA723MU | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Adjustable Voltage Regulator |
| UA723N | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PRECISION VOLTAGE REGULATORS |
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