LTC2913 Datasheet, PDF (1/12 Pages) Linear Technology – Dual UV/OV Voltage Monitor

FEATURES
■ _{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}
■ _{Guaranteed OV and UV for VCC ≥ 1V}
■ _{Available in 10-Lead MSOP and (3mm × 3mm)}
DFN Packages
APPLICATIONS
■ _{Desktop and Notebook Computers}
■ _{Network Servers}
■ _{Core, I/O Voltage Monitors}
LTC2913
Dual UV/OV
Voltage Monitor
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-con-
scious, micropower solution for voltage monitoring.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
Dual OV/UV Supply Monitor
5V
POWER
SUPPLIES
3.3V
0.1 F
44.2k
1k
4.53k
27.4k
1k
4.53k
V_CC
VH1
LTC2913-1
VL1
OV
VH2
UV
SYSTEM
VL2
GND
LATCH
TMR
22nF
2913 TA01a
TIMEOUT = 200ms
Typical Transient Duration
vs Comparator Overdrive
700
600
500
RESET OCCURS
ABOVE CURVE
400
300
200
V_CC = 6V
100
V_CC = 2.3V
0
0.1
1
10
100
COMPARATOR OVERDRIVE PAST THRESHOLD (%)
2913 G05
2913fa
1