Datasheet > SG1548_1

SG1548_1

更新时间： 2024-11-29 06:11:19

品牌	Logo	应用领域
美高森美 - MICROSEMI		监视器
页数	文件大小	规格书
4页	154K
描述
QUAD POWER FAULT MONITOR

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

SG1548_1 数据手册

SG1548/SG2548/SG3548

QUAD POWER FAULT MONITOR

DESCRIPTION

FEATURES

• Monitors four DC voltages and the AC line

• Precision 2.5V ±1% low-drift reference

• Fault tolerance adjustable from ±5% to ±40%

• ±3% trip threshold tolerance over temperature

• Separate 10mA, 40V overvoltage, undervoltage

and AC line fault outputs

• Fault delay programmable with a single capacitor

• 30mV comparator hysteresis to prevent oscilla-

tions

The SG1548 is an integrated circuit capable of monitoring up to four

positive DC supply voltages simultaneously for overvoltage and

undervoltage fault conditions. An on-chip inverting op amp also

allows monitoring one negative DC voltage. The fault tolerance

window is accurately programmable from ±5% to ±40% using a simple

dividernetworkonthe2.5Vreference. Asingleexternalcapacitorsets

the fault indication delay, eliminating false outputs due to switching

noise, logic transition current spikes, and short-term AC line interrup-

tions. An additional comparator referenced to 2.5V allows the AC line

to be monitored for undervoltage conditions or for generation of a line

clock. The comparator can also be used for programmable

undervoltage lockout in a switching power supply. Uncommitted

collector and emitter outputs permit both inverting and non-inverting

operation. External availability of the precision 2.5V reference and

open-collector logic outputs permit expansion to monitor additional

voltage using available open-collector quad comparators.

• On-chip inverting op amp for negative voltage

• Open-collector output logic or expandability

• Operation from 4.5V to 40V supply

HIGH RELIABILITY FEATURES - SG1548

♦ Available to MIL-STD-883

♦ Radiation data available

♦ LMI level "S" processing available

BLOCK DIAGRAM

Rev 1.2a 3.19.2005

Microsemi, Inc. - Integrated Products

11861 Western Avenue ∞ Garden Grove, CA 92841

(714) 898-8121 ∞ FAX: (714) 893-2570

12 3 4

中文翻译

下载PDF

与SG1548_1相关器件

型号	品牌	获取价格	描述	数据表
SG1548J	MICROSEMI	获取价格	QUAD POWER FAULT MONITOR
SG1548J/883B	MICROSEMI	获取价格	QUAD POWER FAULT MONITOR
SG1548J/DESC	MICROSEMI	获取价格	Power Supply Support Circuit, Adjustable, 5 Channel, CDIP16, CERAMIC, DIP-16
SG1548J-883B	MICROSEMI	获取价格	DC:AC - Programmable Quad Line Fault Monitor; Package: DIP;
SG1548L	MICROSEMI	获取价格	QUAD POWER FAULT MONITOR
SG1548L	MICROCHIP	获取价格	The SG1548 is an integrated circuit capable of monitoring up to four positive DC supply vo
SG1548L/883B	MICROSEMI	获取价格	QUAD POWER FAULT MONITOR
SG1549	MICROSEMI	获取价格	CURRENT SENSE LATCH
SG1549	MICROCHIP	获取价格	This monolithic integrated circuit is an analog latch device with digital reset. It was sp
SG1549_1	MICROSEMI	获取价格	CURRENT SENSE LATCH