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APW7120KE-TRL Datasheet(PDF) 11 Page - Anpec Electronics Coropration

Part # APW7120KE-TRL
Description  5V to 12V Supply Voltage, 8-PIN, Synchronous Buck PWM Controller
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Manufacturer  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APW7120KE-TRL Datasheet(HTML) 11 Page - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.5 - Jun., 2008
APW7120
www.anpec.com.tw
11
Operating Waveforms (Cont.)
5. Over-Current Protection
No Connecting a shutdown MOSFET
at OCSET Pin
Ch1 : VOUT, 1V/Div, DC
Time : 5ms/Div
Ch2 : IL, 10A/Div, DC
BW = 20 MHz
Connecting a shutdown MOSFET
(2N7002) at OCSET Pin
Ch1 : VOUT, 1V/Div, DC
Time : 5ms/Div
Ch2 : IL, 10A/Div, DC
BW = 20 MHz
IL
1
1
2
2
VOUT
IL
1
1
2
2
VOUT
ROCSET=15k
APM2512
ROCSET=15k
APM2512
(Refer to the typical application circuit, VBIAS=VIN=+12V supplied by an ATX Power Supply)
6. OCSET Voltage RC Delay
Ch1 : VOCSET, 0.5V/Div, DC
Time : 2
µS/Div
Ch2 : IL, 10A/Div, DC
BW = 20 MHz
Ch1 : VOCSET, 0.5V/Div, DC
Time : 2
µ S/Div
Ch2 : IL, 10A/Div, DC
BW = 20 MHz
VOCSET
IL
CProber=8pF
OCP
OCP
1,2
1,2
IL
OCP
OCP
1,2
1,2
VOCSET
No Connecting a shutdown MOSFET
at OCSET Pin
Connecting a shutdown MOSFET
(2N7002) at OCSET Pin
CProber=8pF
C2N7002=44pF (measured)


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