LTC2913_15 Datasheet, PDF (1/12 Pages) Linear Technology – Dual UV/OV Voltage Monitor

FEATURES
n _{Monitors Two Voltages Simultaneously}
n _{Adjustable UV and OV Trip Values}
n _{Guaranteed Threshold Accuracy: ±1.5%}
n _{Input Glitch Rejection}
n _{Adjustable Reset Timeout with Disable}
n _{44μA Quiescent Current}
n _{Open-Drain OV and UV Outputs}
n _{Guaranteed OV and UV for VCC ≥ 1V}
n _{Available in 10-Lead MSOP and (3mm × 3mm)}
DFN Packages
APPLICATIONS
n _{Desktop and Notebook Computers}
n _{Network Servers}
n _{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.
L, 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
0.1μF
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 TA01b
2913fb
1