SG3846

更新时间： 2024-11-22 22:43:15

品牌	Logo	应用领域
美高森美 - MICROSEMI		控制器
页数	文件大小	规格书
10页	213K
描述
CURRENT MODE PWM CONTROLLER

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SG3846 数据手册

SG1846/SG2846/SG3846

CURRENT MODE PWM CONTROLLER

DESCRIPTION

FEATURES

The SG1846 family of control ICs provides all of the necessary

features to implement fixed frequency, current mode control

schemes while maintaining a minimum external parts count. The

superior performance of this technique can be measured in im-

proved line regulation, enhanced load response characteristics,

and a simpler, easier-to-design control loop. Topological advan-

tages include inherent pulse-by-pulse current limiting capability,

automatic symmetry correction for push-pull converters, and the

ability to parallel “power modules” while maintaining equal current

sharing.

• Automatic feed forward compensation

• Programmable pulse by pulse current limiting

• Automatic symmetry correction in push-pull

configuration

• Enhanced load response characteristics

• Parallel operation capability for modular power

systems

• Differential current sense amplifier with wide

common mode range

• Double pulse suppression

• 200mA totem-pole outputs

• ± 1% bandgap reference

• Under-voltage lockout

• Soft-start capability

• Shutdown capability

• 500KHz operation

Protection circuitry includes built-in under-voltage lockout and

programmable current limit in addition to soft start capability. A

shutdown function is also available which can initiate either a

complete shutdown with automatic restart or latch the supply off.

Other features include fully latched operation, double pulse sup-

pression, deadtime adjust capability, and a ±1% trimmed bandgap

reference.

HIGH RELIABILITY FEATURES - SG1846

♦ Available to MIL-STD - 883

♦ Radiation data available

♦ LMI level "S" processing available

BLOCK DIAGRAM

4/90 Rev 1.1 2/94

LINFINITY Microelectronics Inc.

11861 Western Avenue ∞ Garden Grove, CA 92841

(714) 898-8121 FAX: (714) 893-2570

∞

12 3 4 5 6 7...10

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与SG3846相关器件

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SG3846DW	MICROSEMI	获取价格	CURRENT MODE PWM CONTROLLER
SG3846J	MICROSEMI	获取价格	CURRENT MODE PWM CONTROLLER
SG3846N	MICROSEMI	获取价格	CURRENT MODE PWM CONTROLLER
SG3846Q	MICROSEMI	获取价格	暂无描述
SG3847J	MICROSEMI	获取价格	Switching Controller, Current-mode, 0.5A, 500kHz Switching Freq-Max, CDIP16
SG3847N	MICROSEMI	获取价格	Switching Controller, Current-mode, 0.5A, 500kHz Switching Freq-Max, PDIP16
SG388/D	ETC	获取价格	AC−DC Controllers and Regulators,ON Semiconductor Master Components Selector Guide
SG-3A03	FUJITSU	获取价格	SOLID STATE RELAY MAXIMUM LOAD CURRENT 3 A
SG-3A03C	FUJITSU	获取价格	SOLID STATE RELAY MAXIMUM LOAD CURRENT 3 A
SG-3A03CL	FUJITSU	获取价格	SOLID STATE RELAY MAXIMUM LOAD CURRENT 3 A