Datasheet > SG6521

SG6521

更新时间： 2024-10-28 03:32:27

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		监控 PC
页数	文件大小	规格书
12页	986K
描述
PC Power Supply Supervisors

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SG6521 数据手册

September 2008

SG6521 — PC Power Supply Supervisors

Features

Description

The SG6521 is designed to provide the supply voltage,

current supervisor, remote on/off (PSON), power good

(PGO) indicator, and fault protection (FPO) functions for

switching power systems.

Two 12V Sense Input Pins: VS12 and VS12B

Over-Voltage Protection (OVP) for 3.3V, 5V, and

two 12V

Over-Current Protection (OCP) for 3.3V, 5V, and

two 12V

For supervisory functions, it provides the over-voltage

protection (OVP) for 3.3V, 5V, and two 12V; over-

current protection (OCP) for 3.3V, 5V, and two 12V;

under-voltage protection (UVP) for 3.3V, 5V, and two

12V. When 3.3V, 5V, or 12V voltage decreases to 2.3V,

3.5V, and 9V, respectively, the under-voltage protection

function is enabled. FPO is set HIGH to turn off the

PWM controller IC. The voltage difference across

external current shunt is used for OCP functions. An

external resistor can be used to adjust protection

threshold. An additional protection input pin provides

the flexibility for designing protection circuits.

Under-Voltage Protection (UVP) for 3.3V, 5V, and

two 12V

Open-Drain Output for PGO and FPO Pins

300ms Power-Good Delay

2.8ms PSON Control to FPO Turn-off Delay

48ms PSON Control Delay

No Lock-up During the Fast AC Power On/Off

Wide Supply Voltage Range: 4V to 15V

Over-Temperature Protection (OTP)

Additional Protection Input (Pext)

The power supply is turned on after a 48ms delay when

PSON signal is set from HIGH to LOW. To turn off the

power supply, the PSON signal is set from LOW to

HIGH with a delay of 48ms. The PGI circuitry provides a

power-down warning signal for PGO. When PGI input is

lower than the internal 1.25V reference voltage, PGO

signal is pulled LOW.

Applications

Switch-Mode Power Supplies with Active PFC

Servo System Power Supplies

PC-ATX Power Supplies

Ordering Information

Part

Number

Operating Temperature

Packing

Eco

Status

Package

Method

Range

SG6521DZ

SG6521SZ

-40°C to +85°C

RoHS

16-pin Dual In-Line Package (DIP)

16-pin Small Outline Package (SOP)

Rail

Tape & Reel

For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

SG6521 • Rev. 1.0.0

www.fairchildsemi.com

12 3 4 5 6 7...12

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与SG6521相关器件

型号	品牌	获取价格	描述	数据表
SG6521DZ	FAIRCHILD	获取价格	Power Management Circuit, PDIP16
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SG6610WN (新产品)	ROHM	获取价格	Application: General Inverter, UPS, Power Conditioner, WeldingFor sale of Bare Die, please
SG6612WN (新产品)	ROHM	获取价格	应用：通用逆变器、UPS、功率调节器、Welding 关于裸芯片的规格和销售事宜，请咨询R
SG-670B	ETC	获取价格	MICROWAVE TUNING ELEMENTS
SG6741	FAIRCHILD	获取价格	Highly-Integrated Green-Mode PWM Controller
SG6741_08	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
SG6741A	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
SG6741ASZ	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
SG6741SY	FAIRCHILD	获取价格	Highly-Integrated Green-Mode PWM Controller, 8LD, SOIC,JEDEC MS-012, .150" NARROW

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