Datasheet > BD7690FJ

BD7690FJ

更新时间： 2024-11-05 11:13:59

品牌	Logo	应用领域
罗姆 - ROHM		开关功率因数校正转换器
页数	文件大小	规格书
27页	1342K
描述
作为AC/DC用功率因数校正转换器（Power Factor Correction: PFC），本产品为所有需要改善功率因数的产品提供优良系统。PFC部采用临界模式（BCM），可通过Zero Current Detection降低开关损耗和噪声。采用基于电阻的零电流检测方式，无需ZCD用辅助绕组。

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BD7690FJ 数据手册

Datasheet

DC/DC Driver

Power Factor Correction Controller IC

BD7690FJ

General Description

Key Specifications

BD7690FJ is Power Factor Correction for AC/DC

supplies the system which is suitable for all the products

needing power factor improvement. The PFC adopts

boundary conduction mode (BCM), and switching loss

reduction and noise reduction are possible by Zero

Current Detection (ZCD). ZCD is detected by auxiliary

winding.

◼

Input Voltage Range:

10V to 26V

310uA(Typ)

220kHz(RT:220kΩ)

Operating Current:

Max Frequency:

Operating Temperature Range: -40°C to +105°C

Package(s)

W(Typ) x D(Typ) x H(Max)

4.90mm x 6.00mm x 1.65mm

SOP-J8

Features

◼

Boundary Conduction Mode

Low Power consumption

VCCUVLO

The ZCD detection by auxiliary winding

Switching loss reduction, noise reduction by ZCD

Improving the efficiency by the max frequency

control

◼

Dynamic and Static OVP by the VS pin

High accuracy over current detection(±4%)

Error amplifier input short protection

Restart timer

SOP-J8

Stable MOSFET gate drive by the Clamper

Applications

◼ AC adopter, TV, Lighting equipment, Refrigerator, etc.

Typical Application Circuit(s)

400V

Diode

Bridge

VCC

OUT

GND

ZCD

BD7690FJ

Figure 1. Application Circuit

〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays

.www.rohm.com

TSZ02201-0F2F0A200280-1-2

28.Dec.2020 Rev.003

1/24

TSZ22111 • 14 • 001

12 3 4 5 6 7...27

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