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Linear Technology Electronic Components Datasheet

LTC2910 Datasheet

Octal Positive/Negative Voltage Monitor

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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
www.Da7t0aµSAheQetu4iUe.sccoemnt Current
Open Drain RST and RST Outputs
Guaranteed RST and RST 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
1nF
TIMEOUT = 8.5ms
DIS
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


Linear Technology Electronic Components Datasheet

LTC2910 Datasheet

Octal Positive/Negative Voltage Monitor

No Preview Available !

LTC2910
ABSOLUTE MAXIMUM RATINGS
(Note 1, 2)
Terminal Voltages
VCC (Note 3)............................................. –0.3V to 6V
RST, RST ............................................... –0.3V to 16V
TMR..........................................–0.3V to (VCC + 0.3V)
Vn, DIS, SEL ......................................... –0.3V to 7.5V
Terminal Current
IVCC ....................................................................10mA
Reference Load Current (IREF) ...........................±1mA
IRST/RST..............................................................10mA
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Operating Temperature Range
LTC2910C ................................................ 0°C to 70°C
LTC2910I ............................................. –40°C to 85°C
Storage Temperature Range
SSOP, DFN ......................................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
SSOP ................................................................ 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
V1 1
V2 2
V3 3
V4 4
V5 5
V6 6
V7 7
V8 8
16 VCC
15 TMR
14 SEL
13 DIS
17
12 RST
11 RST
10 REF
9 GND
DHC16 PACKAGE
16-LEAD (5mm × 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 43.5°C/W
EXPOSED PAD (PIN 17) PCB GND CONNECTION OPTIONAL
TOP VIEW
V1 1
V2 2
V3 3
V4 4
V5 5
V6 6
V7 7
V8 8
16 VCC
15 TMR
14 SEL
13 DIS
12 RST
11 RST
10 REF
9 GND
GN16 PACKAGE
16-LEAD PLASTIC SSOP
TJMAX = 150°C, θJA = 110°C/W
ORDER PART NUMBER DHC16 PART MARKING* ORDER PART NUMBER GN16 PART MARKING
LTC2910CDHC
LTC2910IDHC
2910
2910
LTC2910CGN
LTC2910IGN
2910
2910I
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
*The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, Vn = 0.55V, SEL = VCC, DIS = OPEN unless otherwise noted.
(Note 2)
SYMBOL
VSHUNT
ΔVSHUNT
VCC
VCC(MIN)
PARAMETER
VCC Shunt Regulator Voltage
VCC Shunt Regulator Load Regulation
Supply Voltage
Minimum VCC Output Valid
CONDITIONS
ICC = 5mA
ICC = 2mA to 10mA
DIS = 0V
MIN
6.2
2.3
TYP MAX
6.6 6.9
200 300
VSHUNT
1
UNITS
V
mV
V
V
2910fb
2


Part Number LTC2910
Description Octal Positive/Negative Voltage Monitor
Maker Linear Technology
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LTC2910 Datasheet PDF






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