APW7158 datasheet(9/24 Pages) ANPEC

Part #	APW7158

Description	Dual Synchronous Buck PWM Controllers

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Manufacturer	ANPEC [Anpec Electronics Coropration]

Direct Link	http://www.anpec.com.tw

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Copyright

Rev. A.2 - Aug., 2009

APW7158

www.anpec.com.tw

9

Operating Waveforms (Cont.)

Refer to the typical application circuit. The test condition is V

IN=12V, TA= 25

oC unless otherwise specified.

OUT1 Short Circuit Protection

1

3

2

CH2: V

SS1/EN1, 2V/Div, DC

CH3: V

UGATE1, 20V/Div, DC

TIME: 20μs/Div

CH1: V

COMP1, 2V/Div, DC

V

COMP1

V

SS1/EN1

V

UGATE1

OUT2 Short Circuit Protection

1

3

2

CH2: V

SS2/EN2, 2V/Div, DC

CH3: V

UGATE2, 20V/Div, DC

TIME: 20μs/Div

CH1: V

COMP2, 2V/Div, DC

V

COMP2

V

UGATE2

V

SS2/EN2

OUT2 Load Transient

2

3

CH2: V

OUT2, 200mV/Div, AC

CH3: I

OUT2, 10A/Div, DC

TIME: 50μs/Div

CH1: V

OUT1, 200mV/Div, AC

I

OUT2=0A->10A->0A

I

OUT2 rising/falling

time=5μs

V

OUT1

V

OUT2

I

OUT1

1

OUT1 Load Transient

1

2

3

CH2: V

OUT2, 200mV/Div, AC

CH3: I

OUT1, 10A/Div, DC

TIME: 50μs/Div

CH1: V

OUT1, 200mV/Div, AC

I

OUT1=0A->10A->0A

I

OUT1 rising/falling

time=5μs

V

OUT1

I

OUT1

V

OUT2

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