2910 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
2910 Datasheet PDF : 16 Pages
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FEATURES
■ 8 Low Voltage Adjustable Inputs (0.5V)
■ Guaranteed Threshold Accuracy: ±1.5V
■ Input Glitch Rejection
■ Pin Selectable Input Polarity Allows
Negative and OV Monitoring
■ Buffered 1V Reference Output
■ Adjustable Reset Timeout with Timeout Disable
■ 70µA Quiescent Current
■ Open Drain RST and ⎯R⎯S⎯T Outputs
■ Guaranteed RST and ⎯R⎯S⎯T for VCC ≥ 1V
■ Available in 16-Lead SSOP and 16-Lead
(5mm × 3mm) DFN Packages
APPLICATIONS
■ Desktop and Notebook Computers
■ Network Servers
■ Core, I/O Voltage Monitors
LTC2910
Octal Positive/Negative
Voltage Monitor
DESCRIPTION
The LTC®2910 is an octal input voltage monitor intended
for monitoring multiple voltages in a variety of applica-
tions. Each input has a nominal 0.5V threshold, featuring
1.5% tight threshold accuracy over the entire operating
temperature range. Glitch filtering ensures reliable reset
operation without false or noisy triggering.
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.
The LTC2910 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
Octal Supply Monitor, 10% Tolerance, 12V, 5V (x2), 3.3V (x2), 2.5V, 1.8V, 1.2V
12V
5V
3.3V
2.5V
POWER
SUPPLIES 1.8V
1.2V
5V
3.3V
54.9k 88.7k 12.7k 24.9k 39.2k 54.9k 88.7k 226k
11k
11k
11k
11k
11k
11k
11k
11k
SYSTEM
V8
V7
V6
V5
V4
LTC2910
GND
TMR
DIS
1nF
TIMEOUT = 8.5ms
V3
V2
V1
VCC
RST
RST
SEL
0.1µF
2910 TA01
Typical Transient Duration
vs Comparator Overdrive
700
600
500
RESET OCCURS
ABOVE CURVE
400
300
200
100
VCC = 2.3V
VCC = 6V
0
0.1
1
10
100
COMPARATOR OVERDRIVE PAST THRESHOLD (%)
2910 TD01b
2910fb
1
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