NJU7677 Просмотр технического описания (PDF) - Japan Radio Corporation

Номер в каталоге

Компоненты Описание

производитель

NJU7677

1.8V Operate PWM control Step-Up / Flyback switching regulator IC

Japan Radio Corporation  

NJU7677

1.8V Operate PWM control Step-Up / Flyback switching regulator IC

■GENERAL DESCRIPTION

NJU7677 is a high speed low voltage operation switching

regulator control IC. It features a totem pole driver that can directly

drive an external MOS-FET.

Internal soft-start function, dead time control and timer latch

function are included, requiring no external components. All

parameters can be optimized by additional external components for

design flexibility.

■PACKAGE OUTLINE

NJU7677RB1

■FEATURES

● PWM switching control

● Operating Voltage

1.8V to 7V

● Wide Oscillator Range 300kHz to 1MHz

● Maximum Duty Cycle 90% typ.

● Quiescent Current

600µA typ.

● Soft-Start Function

Internal : 4ms typ. or adjustable

● Dead Time Control

● Timer Latch for Short Circuit Protection

● C-MOS Technology

● Package Outline

NJU7677RB1 : TVSP8

■PIN CONFIGURATION

PIN FUNCTION

1

8 1. V+

2

7

2. FB

3. IN-

3

6 4. SCP

5. DTC

4

5 6. RT

7. GND

NJU7677RB1

8. OUT

Ver.2009-09-08

-1-

Share Link: