參數(shù)資料
型號: TPS2115ADRBTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: 3 X 3 MM, GREEN, PLASTIC, SON-8
文件頁數(shù): 8/27頁
文件大?。?/td> 574K
代理商: TPS2115ADRBTG4
STAT
D0
D1
ILIM
IN1
OUT
IN2
GND
1
2
3
4
8
7
6
5
TPS2115APW
0.1 mF
C2
0.1 mF
CL
RL
IN1:2.8
5.5
-
V
IN2:2.8
5.5
-
V
RILIM
NC
SwitchStatus
R1
STAT
D0
D1
ILIM
IN1
OUT
IN2
GND
1
2
3
4
8
7
6
5
TPS2115APW
0.1 mF
CL
RL
IN1:2.8
5.5
-
V
IN2:2.8
5.5
-
V
RILIM
SwitchStatus
R1
SBVS044E
– MARCH 2004 – REVISED APRIL 2011
APPLICATION INFORMATION
Some applications have two energy sources, one of which should be used in preference to another. Figure 14
shows a circuit that will connect IN1 to OUT until the voltage at IN1 falls below a user-specified value. Once the
voltage on IN1 falls below this value, the TPS2114A/5A will select the higher of the two supplies. This usually
means that the TPS2114A/5A will swap to IN2.
Figure 14. Auto-Selecting for a Dual Power Supply Application
In Figure 15, the multiplexer selects between two power supplies based upon the D1 logic signal. OUT connects
to IN1 if D1 is logic 1; otherwise, OUT connects to IN2. The logic thresholds for the D1 terminal are compatible
with both TTL and CMOS logic.
Figure 15. Manually Switching Power Sources
16
Copyright
2004–2011, Texas Instruments Incorporated
相關PDF資料
PDF描述
TPS2114PW 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
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