PC494 데이터 시트보기 (PDF) - NEC => Renesas Technology

부품명

상세내역

제조사

PC494

SWITCHING REGULATOR CONTROL CIRCUIT

NEC => Renesas Technology 

Figure1. Test Circuit

VCC = 15 V

(12)

RL

Test Input

(4) Dead-TimeVCC

(3) Control

Feed-Back

12 kΩ

(6)

RT

0.01µF Note

(5)

(1)

CT

(2)

(16)

(15)

Non-Inv. Input

Inv. Input

Non-Inv. Input

Inv. Input

150 Ω

C1

E1

(8)

(9)

2W

(11)

C2

E2

(10)

50 kΩ

(13)

Output Control

(14)

GND Ref Out

(7)

RL

150 Ω

2 W Output 1

Output 2

µPC494

Note Recommend film capacitor.

5 Caution When the emitter follower is output, connect C1 and C2 to VCC and E1 and E2 to

GND via RL.

Figure2. Voltage Waveform

C1 Output Voltage

C2 Output Voltage

CT Voltage

Dead-Time Control

Input

Threshold Voltage

Feed-Back Input

(E.A. Output) 0.7 V

0% MAX.

Threshold Voltage

VCC

0V

VCC

0V

0%

Connection of Output Control Pin (Pin No.13)

Output Control Input

(Pin No.13)

Operation Mode

At Ref Out

Normal push-pull operation

Grounded

Single-ended or parallel output

6

Data Sheet G12649EJ4V0DS00

Share Link: