LTC2913

1

2913fa

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Dual UV/OV

Voltage Monitor

multiplevoltagesinavarietyofapplications.Dualinputsfor

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

LTC2913-2hasfunctionalitytodisableboththeovervoltage

and undervoltage outputs.

Glitch filtering ensures reliable reset operation without

false or noisy triggering.

The LTC2913 provides a precise, versatile, space-con-

scious, micropower solution for voltage monitoring.

■

Monitors Two Voltages Simultaneously

■

Adjustable UV and OV Trip Values

■

Guaranteed Threshold Accuracy: ±1.5%

■

Input Glitch Rejection

■

Adjustable Reset Timeout with Disable

■

55µA Quiescent Current

■

Open-Drain OV and UV Outputs

■

■

Available in 10-Lead MSOP and (3mm × 3mm)

DFN Packages

■

Desktop and Notebook Computers

■

Network Servers

■

Core, I/O Voltage Monitors

27.4k

1k

44.2k

VH1

LTC2913-1

VL1

VH2

GND

TMR

SYSTEM

POWER

SUPPLIES

VL2

OV

UV

2913 TA01a

LATCH

4.53k

22nF

TIMEOUT = 200ms

1k

4.53k

0.1 F

5V

3.3V

Dual OV/UV Supply Monitor

Typical Transient Duration

vs Comparator Overdrive

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

COMPARATOR OVERDRIVE PAST THRESHOLD (%)

0.1

400

500

600

700

1

10

100

2913 G05

300

200

100

0

RESET OCCURS

ABOVE CURVE