GM431 查看數據表（PDF） - Gamma Microelectronics Inc.
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GM431 Datasheet PDF : 14 Pages
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AA
MICROELECTRONICS
TYPICAL APPLICATIONS
GM431A, GM431B
Vin
Vout
R1
R2
Vout=( 1+
R1
R2
) Vref
Figure 1. Shunt Regulator
GM 7805
Vin
In
Out
Common
Vout
R1
R2
Vout=(1+
R1
R2
)Vref
Vout(min) = Vref+ 5.0V
Figure 3. Output Control for a Three
Terminal Fixed Regulator
Vin
RCL
Iout
Vout
Vref
Iout= RCL
Figure 5. Constant Current Source
Vin
Vout
R1
Power Management
GM431
2.5V ADJUSTABLE SHUNT REGULATOR
Vin
Vout
R1
R2
Vout=( 1+
R1
R2
) Vref
Figure 2. High Current Shunt Regulator
Vin
Vout
R1
R2
Vout=( 1+
R1
R2
)Vref
Vout(min) = Vref+ Vbe 2.0V
Figure 4. Series Pass Regulator
Vin
Isink
Isink=
Vref
RS
RS
Figure 6. Constant Current Sink
Vin
Vout
R1
R2
R1
Vout(trip)=(1+ R2
) Vref
Figure 7. TRIAC Crowbar
R2
Vout(trip)=(1 +
R1
R2
) Vref
Figure 8. SCR Crowbar
7
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