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For more information www.linear.com/LTC2914
Quad UV/OV
Positive/Negative
Voltage Monitor
n
Desktop and Notebook Computers
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Network Servers
n
Core, I/O Voltage Monitors
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Monitors Four Voltages Simultaneously
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Adjustable UV and OV Trip Values
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Guaranteed Threshold Accuracy: ±1.5% of
Monitored Voltage over Temperature
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Input Glitch Rejection
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Monitors up to Tw o Negative Voltages
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Buffered 1V Reference Output
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Adjustable Reset Timeout with Timeout Disable
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62µA Quiescent Current
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Open-Drain OV and UV Outputs
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Guaranteed OV and UV for V
CC
≥ 1V
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Available in 16-Lead SSOP and 16-Lead
(5mm × 3mm) DFN Packages
Quad UV/OV Supply Monitor,10% Tolerance, 5V, 3.3V, 2.5V, 1.8V
The LT C
®
2914 is a quad input voltage monitor intended for
monitoring multiple voltages in a variety of applications.
Dual inputs for each monitored voltage allow monitor
-
ing four separate undervoltage (UV) conditions and four
separate overvoltage (OV) conditions. All monitors share
a common undervoltage output and a common overvolt
-
age output. The LTC2914-1 has latching capability for the
overvoltage output. The LTC2914-2 has functionality to
disable both the overvoltage and undervoltage outputs.
Polarity selection and a buffered reference allow monitor
-
ing up to two separate negative voltages. A three-state
input pin allows
setting the polarity of two inputs without
requiring any external
components. Glitch filtering ensures
reliable reset operation without false or noisy triggering.
The LTC2914 provides a precise, versatile, space-con
-
scious, micropower solution for voltage monitoring.
Input Threshold Voltage
vs Temperature
Typical applicaTion
FeaTures
applicaTions
DescripTion
VH1
V
CC
LTC2914-1
SYSTEM
2914 TA01a
0.1μF
GND TMR
VL1
VL2
VH2
REF
VL3
VH3
OV
UV
LATCH
SEL
VL4
C
TMR
22nF
TIMEOUT = 200ms
VH4
1k
4.53k
4.53k
12.4k1k
19.6k4.53k
27.4k1k
44.2k
3.3V
2.5V
1.8V
1k
4.53k
P0WER
SUPPLIES
TEMPERATURE (°C)
–50
0.495
OUT
0.497
0.499
0.501
–25
0
25 50
2914 TA01b
75
0.503
0.505
0.496
0.498
0.500
0.502
0.504
100
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