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LTC2913| Datasheet

By datasheet - November 4th, 2008

LTC2913| Datasheet

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LTC2913 Dual UV/OV Voltage Monitor FEATURES
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DESCRIPTION
The LTC 2913 is a dual input voltage monitor intended for multiple voltages in a variety of applications. Dual inputs for each voltage allow monitoring two separate undervoltage (UV) conditions and two separate overvoltage (OV) conditions. All monitors share a common undervoltage output and a common overvoltage output. The LTC2913-1 has latching capability for the overvoltage output. The LTC2913-2 has functionality to disable both the overvoltage and undervoltage outputs. Glitch filtering ensures reliable reset operation without false or noisy triggering. The LTC2913 provides a precise, versatile, space-conscious, micropower solution for voltage monitoring.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.

Monitors Two Voltages Simultaneously Adjustable UV and OV Trip Values Guaranteed Threshold Accuracy: 1.5% Input Glitch Rejection Adjustable Reset Timeout with Disable 44A Quiescent Current Open-Drain OV and UV Outputs Guaranteed OV and UV for VCC 1V Available in 10-Lead MSOP and (3mm 3mm) DFN Packages

APPLICATIONS
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Desktop and Notebook Computers Network Servers Core, I/O Voltage Monitors

TYPICAL APPLICATION
Dual OV/UV Supply Monitor
5V POWER 3.3V SUPPLIES 0.1F 700 TYPICAL TRANSIENT DURATION (s) 600 500 400 300 200 VCC = 6V 100 VCC = 2.3V 0 0.1 1 10 100 COMPARATOR OVERDRIVE PAST THRESHOLD (%)
2913 TA01b

Typical Transient Duration vs Comparator Overdrive

44.2k 1k 27.4k

RESET OCCURS ABOVE CURVE

VCC VH1 LTC2913-1 VL1 VH2 OV UV LATCH TMR

SYSTEM

4.53k

1k 4.53k VL2 GND

2913 TA01a

22nF

TIMEOUT = 200ms

2913fb

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