LTC2912

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2912fb

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Single UV/OV

Voltage Monitor

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

noisy triggering. An adjustable timer defines the duration

of the overvoltage and undervoltage reset outputs which

function independently. While the LTC2912 operates

regulator coupled with low supply current demand allows

operation 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.

TheLTC2912providesaprecise,versatile,space‑conscious

micropower solution for voltage monitoring.

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Monitors Single Voltage

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Adjustable UV and OV Trip Values

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Guaranteed Threshold Accuracy: ±1.5%

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Power Supply Glitch Immunity

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Adjustable Reset Timeout with Timeout Disable

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29µA Quiescent Current

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Open‑Drain OV and UV Outputs

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DFN Packages

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Desktop and Notebook Computers

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Network Servers

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Core, I/O Voltage Monitors

Single OV/UV Supply Monitor, 3.3V ±10% Tolerance

Reset Time-Out Period vs Capacitance

1k

27.4k

VH

VL

GND

TMR

SYSTEM

POWER

SUPPLY

OV

UV

2912 TA01a

LATCH

22nF TIMEOUT = 200ms

4.53k

LTC2912-1

0.1µF

3.3V

10

100

1000

10000

0.1

10

100

1000

2912 G08

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L

, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property

of their respective owners.