Datasheet > 暂无类别数据> LTC2912CDDB-3#TRPBF

LTC2912CDDB-3#TRPBF

更新时间： 2024-02-24 17:47:34

品牌	Logo	应用领域
凌特 - Linear		监视器光电二极管
页数	文件大小	规格书
12页	168K
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LTC2912

Single UV/OV

Voltage Monitor

FEATURES

DESCRIPTION

TheLTC^®2912voltagemonitorisdesignedtodetectpower

supply undervoltage and overvoltage events. The VL and

VH monitor inputs include ﬁltering to reject brief glitches,

thereby ensuring reliable reset operation without false or

noisytriggering.Anadjustabletimerdeﬁnesthedurationof

theovervoltageandundervoltageresetoutputswhichfunc-

tion independently. While the LTC2912 operates directly

■

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 V ≥ 1V

from 2.3V to 6V supplies, an internal V shunt regulator

Available in 8-Lead ThinSOT^TMand (3mm × 2mm)

■

coupled with low supply current demand allows operation

DFN Packages

from higher voltages such as 12V, 24V or 48V.

Three output conﬁgurations 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.

APPLICATIONS

■

Desktop and Notebook Computers

Network Servers

■

Core, I/O Voltage Monitors

TheLTC2912providesaprecise,versatile,space-conscious

micropower solution for voltage monitoring.

, 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.

TYPICAL APPLICATION

Single OV/UV Supply Monitor, 313V ±±ꢀ5 Tolerance

Reset Time-Out Period vs Capacitance

10000

3.3V

POWER

SUPPLY

0.1μF

1000

100

27.4k

SYSTEM

LTC2912-1

4.53k

LATCH

GND

TMR

2912 TA01a

22nF

0.1

100

(nF)

1000

TIMEOUT = 200ms

TMR PIN CAPACITANCE, C

TMR

2912 G08

2912fa

12 3 4 5 6 7...12

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