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參數資料
| 型號： | SG1548L |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 電源管理 |
| 英文描述： | QUAD POWER FAULT MONITOR |
| 中文描述： | 5-CHANNEL POWER SUPPLY SUPPORT CKT, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 52K |
| 代理商： | SG1548L |
11/91 Rev 1.2 5/97
Copyright
1997
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
∞
∞
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
1
SG1548/SG2548/SG3548
QUAD POWER FAULT MONITOR
DESCRIPTION
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
divider network on the 2.5V reference. A single external capacitor sets
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.
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
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
相關PDF資料 |
PDF描述 |
|---|---|
| SG3548DW | QUAD POWER FAULT MONITOR |
| SG3548J | QUAD POWER FAULT MONITOR |
| SG3548N | QUAD POWER FAULT MONITOR |
| SG2549 | CURRENT SENSE LATCH |
| SG2549M | CURRENT SENSE LATCH |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SG1548L/883B | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:QUAD POWER FAULT MONITOR |
| SG1548L-883B | 制造商:Microsemi Corporation 功能描述:DC:AC - PROGRAMMABLE QUAD LINE FAULT MONITOR - Bulk |
| SG1549 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:CURRENT SENSE LATCH |
| SG1549_1 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:CURRENT SENSE LATCH |
| SG1549Y | 制造商:Microsemi Corporation 功能描述:CURRENT SENSE LATCH 8CDIP - Bulk |
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