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L6726ATR 데이터시트(PDF) 31 Page - STMicroelectronics

부품명 L6726ATR
상세설명  Single phase PWM controller
PDF  35 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6726ATR 데이터시트(HTML) 31 Page - STMicroelectronics

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L6726A
5 A demonstration board
Doc ID 12754 Rev 4
31/35
11.1.2
Power output (VOUT)
This is the output voltage of the power conversion. The output voltage is programmed to
1.25 V. It can be changed by replacing R13 (adjusting of compensation network may be
needed). Adding R18 allows to adjust OCP threshold.
11.1.3
IC additional supply (VCC)
The controller can be supplied separately from the power conversion through VCC input. In
this case, to separate VCC from VIN, R16 resistor must be removed.
11.1.4
Test points
The following test points are provided to allow easy probing of important signals:
–
COMP: output of the error amplifier;
–
FB: inverting input of the error amplifier;
–
PH: Phase pin of the device;
–
LG: Low-side gate pin of the device;
–
UG: High-side gate pin of the device.
11.1.5
Demonstration board efficiency
Figure 21.
5 A demonstration board efficiency
50
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100
01
2
3
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Output Current [A]
Vin = 12V, Vout = 1.25V
Vin = 5V, Vout = 1.25V
Vin = 12V, Vout = 2.5V
Vin = 5V, Vout = 2.5V



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