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LTC2900-2CMS

Description
Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin MSOP
File Size193KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC2900-2CMS Overview

Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin MSOP

LTC2900-2CMS Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
SVHCYes
SVHC Exceeds ThresholdYes
Number of Supervisors4
Maximum Reset Active Time (ms)9
Output DriverActive Low/Push-Pull
Monitored Voltage (V)2.5|3|3.3|5|Adj|1.5|1.8
Minimum Operating Supply Voltage (V)1
Maximum Operating Supply Voltage (V)7
Maximum Supply Current (uA)75
Power Fail DetectionNo
Watchdog TimerNo
Manual ResetYes
Chip Enable SignalsNo
Battery Backup SwitchingYes
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
TypeVoltage Monitor
Pin Count10
Standard Package NameMSOP
Supplier PackageMSOP
MountingSurface Mount
Package Height0.86
Package Length3
Package Width3
PCB changed10
Lead ShapeGull-wing
LTC2900
Programmable Quad Supply
Monitor with Adjustable Reset Timer
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
Simultaneously Monitors Four Supplies
16 User Selectable Combinations of 5V, 3.3V, 3V,
2.5V, 1.8V, 1.5V and/or
±Adjustable
Voltage
Thresholds
Guaranteed Threshold Accuracy:
±1.5%
of
Monitored Voltage Over Temperature
Low Supply Current: 43µA Typ
Adjustable Reset Time
Small MSOP and 3mm
×
3mm DFN Packages
Manual Reset Pin
Open-Drain RST Output (LTC2900-1)
Push-Pull RST Output (LTC2900-2)
Power Supply Glitch Immunity
Guaranteed RST for V
CC
1V
The LTC
®
2900 is a programmable supply monitor for
systems with up to four supply voltages. One of 16 preset
or adjustable voltage monitor combinations can be se-
lected using an external resistor divider connected to the
program pin. The preset voltage thresholds are accurate
to
±1.5%
over temperature.
The reset delay time is adjustable using an external
capacitor and the manual reset input may be used with a
momentary switch to issue reset pulses with programmed
duration. Tight voltage threshold accuracy and glitch
immunity ensure reliable reset operation without false
triggering. The RST output is guaranteed to be in the
correct state for V
CC
down to 1V. The LTC2900-1 features
an open-drain RST output, while the LTC2900-2 has a
push-pull RST output.
The 43µA supply current makes the LTC2900 ideal for
power conscious systems and it may be configured to
monitor less than four inputs. The parts are available in
the 10-lead MSOP and the 10-lead 3mm
×
3mm DFN
packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Desktop and Notebook Computers
Multivoltage Systems
Telecom Equipment
Portable Battery-Powered Equipment
Network Servers
TYPICAL APPLICATIO
Quad Supply Monitor (5V, 3.3V, 2.5V, 1.8V)
5V
3.3V
DC/DC
CONVERTER
2.5V
1.8V
V3
V4
V1
LTC2900-2
V2
V
REF
V
PG
GND
RST
PBR
CRT
C
RT
47nF
t
RST
= 216ms
2900f
C1
0.1µF
C2
0.1µF
R1
59k
1%
R2
40.2k
1%
PUSH-BUTTON
RESET
2900 TA01
U
SYSTEM
LOGIC
U
U
1

LTC2900-2CMS Related Products

LTC2900-2CMS LTC2900-1IMS LTC2900-2CMS#PBF LTC2900-2CMS#TRPBF LTC2900-2IDD#PBF LTC2900-2IDD#TRPBF LTC2900-2IDD
Description Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin MSOP Processor Supervisor 4 Active Low/Open Drain Automotive 10-Pin MSOP Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin MSOP Tube Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin MSOP T/R Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin DFN EP Tube Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin DFN EP T/R Processor Supervisor 4 Active Low/Push-Pull Automotive 10-Pin DFN EP Tube
EU restricts the use of certain hazardous substances Not Compliant Not Compliant Compliant Compliant Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Unconfirmed LTB Active Active Active Active Unconfirmed
Number of Supervisors 4 4 4 4 4 4 4
Maximum Reset Active Time (ms) 9 9 9 9 9 9 9
Output Driver Active Low/Push-Pull Active Low/Open Drain Active Low/Push-Pull Active Low/Push-Pull Active Low/Push-Pull Active Low/Push-Pull Active Low/Push-Pull
Monitored Voltage (V) 2.5|3|3.3|5|Adj|1.5|1.8 1.5|1.8|2.5|3|3.3|5|Adj 1.5|1.8|2.5|3|3.3|5|Adj 1.5|1.8|2.5|3|3.3|5|Adj 1.5|1.8|2.5|3|3.3|5|Adj Adj|5|3.3|3|2.5|1.8|1.5 5|3|3.3|Adj|1.5|1.8|2.5
Minimum Operating Supply Voltage (V) 1 1 1 1 1 1 1
Maximum Operating Supply Voltage (V) 7 7 7 7 7 7 7
Maximum Supply Current (uA) 75 75 75 75 75 75 75
Power Fail Detection No No No No No No No
Watchdog Timer No No No No No No No
Manual Reset Yes Yes Yes Yes Yes Yes Yes
Chip Enable Signals No No No No No No No
Battery Backup Switching Yes Yes Yes Yes Yes Yes Yes
Minimum Operating Temperature (°C) - -40 - - -40 -40 -40
Maximum Operating Temperature (°C) 70 85 70 70 85 85 85
Supplier Temperature Grade Commercial Industrial Commercial Commercial Industrial Industrial Industrial
Type Voltage Monitor Voltage Monitor Voltage Monitor Voltage Monitor Voltage Monitor Voltage Monitor Voltage Monitor
Pin Count 10 10 10 10 10 10 10
Standard Package Name MSOP MSOP MSOP MSOP DFN DFN DFN
Supplier Package MSOP MSOP MSOP MSOP DFN EP DFN EP DFN EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.86 0.86 0.86 0.86 0.75(Max) 0.75(Max) 0.75(Max)
Package Length 3 3 3 3 3 3 3
Package Width 3 3 3 3 3 3 3
PCB changed 10 10 10 10 10 10 10
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing No Lead No Lead No Lead
HTS - 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 - -
Packaging - - Tube Tape and Reel Tube Tape and Reel Tube
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