LTC2913

1

2913fb

FEATURES

APPLICATIONS

DESCRIPTION

Dual UV/OV

Voltage Monitor

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-con-

scious, micropower solution for voltage monitoring.

DFN Packages

Dual OV/UV Supply Monitor

Typical Transient Duration

vs Comparator Overdrive

TYPICAL APPLICATION

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

All other trademarks are the property of their respective owners.

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

0.1μF

5V

3.3V

COMPARATOR OVERDRIVE PAST THRESHOLD (%)

0.1

400

500

600

700

1

10

100

2913 TA01b

300

200

100

0

RESET OCCURS

ABOVE CURVE