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SG6846GLSY

更新时间： 2024-10-28 03:32:27

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		开关光电二极管控制器
页数	文件大小	规格书
14页	377K
描述
Highly Integrated Green-Mode PWM Controller

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中文翻译

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技术参数
数据手册

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SG6846GLSY 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Transferred	零件包装代码：	SOIC
包装说明：	SOP, SOP8,.25	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.31.00.01	风险等级：	5.65
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	CURRENT-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	20 V
最小输入电压：	11.5 V	标称输入电压：	15 V
JESD-30 代码：	R-PDSO-G8	JESD-609代码：	e3
长度：	4.9 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	8
最高工作温度：	105 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP8,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.75 mm
子类别：	Switching Regulator or Controllers	表面贴装：	YES
切换器配置：	SINGLE	最大切换频率：	136 kHz
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
宽度：	3.9 mm	Base Number Matches：	1

SG6846GLSY 数据手册

October 2008

SG6846G

Highly Integrated Green-Mode PWM Controller

Features

Description

A highly integrated PWM controller, SG6846G provides

several features to enhance the performance of flyback

converters. To minimize standby power consumption, a

proprietary green-mode function provides off-time

modulation to continuously decrease the switching

frequency under light-load conditions. Under zero-load

conditions, the power supply enters burst-mode, which

completely shuts off PWM output. Output restarts just

before the supply voltage drops below the UVLO lower

limit. This green-mode function enables power supplies

to meet international power conservation requirements.

Low Startup Current: 8µA

Low Operating Current: 3.7mA

Peak-Current-Mode Operation with Cycle-by-Cycle

Current Limiting

PWM Frequency Continuously Decreasing with

Burst Mode at Light Loads

V_DDOver-Voltage Protection (OVP)

AC Input Brownout Protection with Hysteresis

Constant Output Power Limit (Full AC Input Range)

Internal Latch Circuit for OVP, OTP, and OCP

Two-Level OCP Delay: 110ms

The SG6846G is designed for SMPS with surge-current

output, incorporated with a two-level OCP function.

Besides the cycle-by-cycle current limiting; if the

switching current is higher than OCP threshold and

lasts for 110ms, SG6846G shuts down immediately.

SG6846G also integrates a frequency-hopping function

internally, which helps reduce EMI emission of a power

supply with minimum line filters. The built-in

synchronized slope compensation provides proprietary

internal compensation for constant output power limit

over a universal AC input range. The gate output is

clamped at 18V to protect the external MOSFET from

over-voltage damage.

Programmable PWM Frequency with

Frequency Hopping

OCP Threshold is Half Peak Current Limit

Feedback Open-Loop Protection with 110ms Delay

Soft Startup Time: 5ms

Applications

Other protection functions include AC input brownout

protection with hysteresis and V_DDover-voltage

protection. For over-temperature protection, an external

NTC thermistor can be applied to sense the ambient

temperature. When OCP, V_DDOVP, or OTP are

activated, an internal latch circuit latches off the

controller. The latch resets when V_DDsupply is removed.

General-purpose, switch-mode power supplies and

flyback power converters, including:

Power Adapters

Open-Frame SMPS

SMPS with Surge-Current Output, such as for

Printers, Scanners, Motor Drivers

SG6846G is available in an 8-pin SOP package.

Ordering Information

Part

Number

Operating

Temperature Range Latch

OCP

Packing

Method

Eco

Status

Package

SG6846GLSY

-40 to +105°C

Yes

Green

8-Pin Small Outline Package (SOP) Tape & Reel

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

SG6846G • Rev. 1.0.0

www.fairchildsemi.com

12 3 4 5 6 7...14

中文翻译

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与SG6846GLSY相关器件

型号	品牌	获取价格	描述	数据表
SG6846LD	ETC	获取价格	Highly-Integrated Green-Mode PWM Controller
SG6846LDZ	ROCHESTER	获取价格	SWITCHING CONTROLLER, 70kHz SWITCHING FREQ-MAX, PDIP8, ROHS COMPLIANT, MS-001BA, DIP-8
SG6846LS	ETC	获取价格	Highly-Integrated Green-Mode PWM Controller
SG6846LSY	ROCHESTER	获取价格	SWITCHING CONTROLLER, 70kHz SWITCHING FREQ-MAX, PDSO8, GREEN, MS-012AA, SOIC-8
SG6846LSZ	ROCHESTER	获取价格	SWITCHING CONTROLLER, 70kHz SWITCHING FREQ-MAX, PDSO8, ROHS COMPLIANT, MS-012AA, SOIC-8
SG6848	ETC	获取价格	Low Cost Green-Mode PWM Controller for Flyback Converters
SG6848D	FAIRCHILD	获取价格	Switching Regulator/Controller, Current-mode, 75kHz Switching Freq-Max, BICMOS, PDIP8,
SG6848DZ	FAIRCHILD	获取价格	Switching Regulator/Controller, Current-mode, 75kHz Switching Freq-Max, BICMOS, PDIP8,
SG6848T	ETC	获取价格	Low Cost Green-Mode PWM Controller for Flyback Converters
SG6848TZ	FAIRCHILD	获取价格	Switching Regulator/Controller, Current-mode, 75kHz Switching Freq-Max, BICMOS, PDSO6,

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