参数资料
型号: LTC2912IDDB-3
厂商: LINEAR TECHNOLOGY CORP
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封装: 3 X 2 MM, PLASTIC, MO-229WECD-1, DFN-8
文件页数: 1/12页
文件大小: 168K
代理商: LTC2912IDDB-3
LTC2912
1
2912fa
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Single UV/OV
Voltage Monitor
The LTC
2912 voltage monitor is designed to detect power
supply undervoltage and overvoltage events. The VL and
VH monitor inputs include ltering to reject brief glitches,
thereby ensuring reliable reset operation without false or
noisy triggering. An adjustable timer denes the duration of
the overvoltage and undervoltage reset outputs which func-
tion independently. While the LTC2912 operates directly
from 2.3V to 6V supplies, an internal VCC shunt regulator
coupled with low supply current demand allows operation
from higher voltages such as 12V, 24V or 48V.
Three output congurations are available: the LTC2912-
1 has a latch control for the OV output; the LTC2912-2
has an OV and UV output disable feature for margining
applications; the LTC2912-3 is identical to the LTC2912-1
but with a noninverting, OV output.
The LTC2912 provides a precise, versatile, space-conscious
micropower solution for voltage monitoring.
Monitors Single Voltage
Adjustable UV and OV Trip Values
Guaranteed Threshold Accuracy: ±1.5%
Power Supply Glitch Immunity
Adjustable Reset Timeout with Timeout Disable
29μA Quiescent Current
Open-Drain OV and UV Outputs
Guaranteed OV and UV for VCC ≥ 1V
Available in 8-Lead ThinSOT
TM and (3mm × 2mm)
DFN Packages
Desktop and Notebook Computers
Network Servers
Core, I/O Voltage Monitors
Single OV/UV Supply Monitor, 3.3V ±10% Tolerance
Reset Time-Out Period vs Capacitance
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
1k
27.4k
VH
VL
GND
TMR
SYSTEM
POWER
SUPPLY
OV
UV
2912 TA01a
LATCH
22nF
TIMEOUT = 200ms
4.53k
VCC
LTC2912-1
0.1μF
3.3V
TMR PIN CAPACITANCE, CTMR (nF)
10
UV/OV
TIMEOUT
PERIOD,
t
UOTO
(ms)
100
1000
10000
0.1
10
100
1000
2912 G08
1
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相关代理商/技术参数
参数描述
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