Datasheet > 电源电路 > 开关式稳压器或控制器> SG3842DMT

SG3842DMT

更新时间： 2024-01-08 15:49:52

品牌	Logo	应用领域
美高森美 - MICROSEMI		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数	文件大小	规格书
14页	224K
描述
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, PLASTIC, SOIC-8

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技术参数
数据手册

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SG3842DMT 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	CERAMIC, DIP-8	Reach Compliance Code：	unknown
风险等级：	5.8	Is Samacsys：	N
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：	25 V
最小输入电压：	12 V	标称输入电压：	15 V
JESD-30 代码：	R-CDIP-T8	JESD-609代码：	e0
功能数量：	1	端子数量：	8
最高工作温度：	70 °C	最低工作温度：
最大输出电流：	1 A	封装主体材料：	CERAMIC, METAL-SEALED COFIRED
封装代码：	DIP	封装等效代码：	DIP8,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
认证状态：	Not Qualified	子类别：	Switching Regulator or Controllers
表面贴装：	NO	切换器配置：	PUSH-PULL
最大切换频率：	500 kHz	技术：	BIPOLAR
温度等级：	COMMERCIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	Base Number Matches：	1

SG3842DMT 数据手册

LIN DOC #: 1842

SG1842/SG1843 Series

U R R E N T M O D E P W M C O N T R O L L E R

T H E I N F I N I T E P O W E R O F I N N O V A T I O N

P R O D U C T I O N D A T A S H E E T

DESCRIPTION

KEY FEATURES

■ OPTIMIZED FOR OFF-LINE CONTROL

■ LOW START-UP CURRENT (<1mA)

■ AUTOMATIC FEED FORWARD

COMPENSATION

■ TRIMMED OSCILLATOR DISCHARGE

The SG1842/43 family of control IC's

provides all the necessary features to

implement off-line fixed frequency,

current-mode switching power supplies

with a minimum number of external

components. Current-mode

architecture demonstrates improved

line regulation, improved load

regulation, pulse-by-pulse current

limiting and inherent protection of the

power supply output switch.

voltage lockout, current limiting

circuitry and start-up current of less

than 1mA.

The totem-pole output is optimized

to drive the gate of a power MOSFET.

The output is low in the off state to

provide direct interface to an N

channel device.

The SG1842/43 is specified for

operation over the full military ambient

temperature range of -55°C to 125°C.

The SG2842/43 is specified for the

industrial range of -25°C to 85°C, and

the SG3842/43 is designed for the

commercial range of ꢁ°C to 7ꢁ°C.

CURRENT

■ PULSE-BY-PULSE CURRENT LIMITING

■ ENHANCED LOAD RESPONSE

CHARACTERISTICS

■ UNDER-VOLTAGE LOCKOUT WITH 6V

HYSTERESIS (SG1842 only)

■ DOUBLE-PULSE SUPPRESSION

■ HIGH-CURRENT TOTEM-POLE OUTPUT

The bandgap reference is trimmed to

1ꢀ over temperature. Oscillator

discharge current is trimmed to less

than 1ꢁꢀ. The SG1842/43 has under-

(1AMP PEAK)

■ INTERNALLY TRIMMED BANDGAP

REFERENCE

■ 500KHZ OPERATION

■ UNDERVOLTAGE LOCKOUT

SG1842 - 16 volts

PRODUCT HIGHLIGHT

SG1843 - 8.4 volts

■ LOW SHOOT-THROUGH CURRENT <75mA

TYPICAL APPLICATION OF SG3842 IN A FLYBACK CONVERTER

OVER TEMPERATURE

HIGH RELIABILITY FEATURES

■ AVAILABLE TO MIL-STD-883B AND DESC

INPUT

SMD

■ SCHEDULED FOR MIL-M38510 QPL LISTING

■ RADIATION DATA AVAILABLE

V_CC

■

LINFINITY LEVEL "S" PROCESSING AVAILABLE

SG3842

PACKAGE ORDER INFORMATION

Plastic DIP

8-pin

Plastic DIP

14-pin

Plastic SOIC

8-pin

Plastic SOIC

14-pin

Ceramic DIP

8-pin

Ceramic DIP

14-pin

Cer. Flatpack Ceramic LCC

1ꢁ-pin 2ꢁ-pin

T_A(°C)

0 to 70

SG3842M

SG3842N

SG3842DM

SG3842D

SG3842Y

SG3843Y

SG2842Y

SG2843Y

SG1842Y

SG1843Y

SG3842J

SG3843J

SG2842J

SG2843J

SG1842J

SG1843J

—

SG3843M

SG3843N

SG3843DM

SG3843D

SG2842M

SG2842N

SG2842DM

SG2842D

—

-25 to 85

-55 to 125

MIL-STD/883

DESC

SG2843M

SG2843N

SG2843DM

SG2843D

—

SG1842L

SG1843L

SG1842Y/883B SG1842J/883B

SG1843Y/883B SG1843J/883B

SG1842L/883B

SG1843L/883B

SG1842Y/DESC SG1842J/DESC SG1842F/DESC SG1842L/DESC

SG1843Y/DESC SG1843J/DESC SG1843F/DESC SG1843L/DESC

Note: All surface-mount packages are available in Tape & Reel.

F O R F U R T H E R I N F O R M AT I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1

Rev. 1.6 4/00

11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841

12 3 4 5 6 7...14

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与SG3842DMT相关器件

型号	品牌	获取价格	描述	数据表
SG3842DM-TR	MICROSEMI	获取价格	Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, ROHS CO
SG3842D-TR	MICROSEMI	获取价格	Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, ROHS C
SG3842G	ETC	获取价格	BiCMOS Green-Mode PWM Controllers
SG3842G2AD	ETC	获取价格	BiCMOS Green-Mode PWM Controllers
SG3842G2ADZ	ETC	获取价格	BiCMOS Green-Mode PWM Controllers
SG3842G2AS	ETC	获取价格	BiCMOS Green-Mode PWM Controllers
SG3842G2ASZ	ETC	获取价格	BiCMOS Green-Mode PWM Controllers
SG3842GAD	ETC	获取价格	BiCMOS Green-Mode PWM Controllers
SG3842GADZ	ETC	获取价格	BiCMOS Green-Mode PWM Controllers
SG3842GAS	ETC	获取价格	BiCMOS Green-Mode PWM Controllers

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