APW7098 데이터 시트보기 (PDF) - Anpec Electronics

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APW7098

T wo- Phase Buck PWM Controller with Integrated MOSFET Drivers

Anpec Electronics 

APW7098

Operating Waveforms (Cont.)

External Step-Up Reference by VREFIN/EN

VREFIN/EN

1

VFB

VSS

2

3

IOUT

4

CH1: VREFIN/EN (1V/div)

CH2: VFB (500mV/div)

CH3: VSS (1V/div)

CH4: IOUT (10A/div)

Time: 200µs/div

External Step-Down Reference by VREFIN/EN

VREFIN/EN

1

VFB

VSS

2

IOUT

3

4

CH1: VREFIN/EN (1V/div)

CH2: VFB (500mV/div)

CH3: VSS (1V/div)

CH4: IOUT (10A/div)

Time: 200µs/div

Power On Without VIN2 Voltage

VOUT

1

VPHASE1

2

VPHASE2

3

Vss

4

CH1: VOUT (1V/div)

CH2: VPHASE1 (10V/div)

CH3: VPHASE2 (2V/div)

CH4: VSS (2V/div)

Time: 5ms/div

Under-Voltage Protection (UVP)

1

2

3

4

CH1: VFB (500mV/div)

CH2: VPHASE1 (10V/div)

CH3: VPHASE2 (10V/div)

CH4: VSS (2V/div)

Time: 200µs/div

VFB

VPHASE1

VPHASE2

Vss

Copyright © ANPEC Electronics Corp.

9

Rev. A.6 - Oct., 2009

www.anpec.com.tw

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