AIC1341 데이터 시트보기 (PDF) - Analog Intergrations

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AIC1341

High Performance, Triple-Output, Auto-Tracking Combo Controller

Analog Intergrations 

AIC1341

Pin 15: PGND:

Driver power GND pin. PGND

should be connected to a low

impedance ground plane in close

to lower N-MOSFET source.

Pin 16: LGATE: Lower N-MOSFET gate drive pin.

n TYPICAL PERFORMANCE CHARACTERISTICS

UGATE

UGATE

LGATE

LGATE

Fig.1 The gate drive waveforms

FAULT

SS

Over Load

Applied

Inductor Current

10A/div

Fig.2 Over-Current Operation on Inductor

SS

VOUT1 =3.5V

VOUT1 =2V

VOUT1 =1.3V

Fig.3 Soft start initiates PWM Output

6

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