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LTC2908IDDB8-B1

Description
IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit
CategoryPower/power management    The power supply circuit   
File Size199KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC2908IDDB8-B1 Overview

IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit

LTC2908IDDB8-B1 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeDFN
package instructionVSON, SOLCC8,.08,20
Contacts8
Reach Compliance Codecompli
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-N8
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of channels6
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeVSON
Encapsulate equivalent codeSOLCC8,.08,20
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)255
power supply3.3 V
Certification statusNot Qualified
Maximum seat height0.8 mm
Maximum supply voltage (Vsup)6 V
Minimum supply voltage (Vsup)0.5 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTIN LEAD
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Threshold voltage nominal0.5,1.4,1.6,2.3,3
Maximum time at peak reflow temperature40
width2 mm
LTC2908
Precision
Six Supply Monitor
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
Ultralow Voltage Reset: V
CC
= 0.5V Guaranteed*
Monitors Six Inputs Simultaneously:
5V, 3.3V, 2.5V, 1.8V, ADJ1, ADJ2 (LTC2908-A1)
3.3V, 2.5V, 1.8V, 1.5V, ADJ1, ADJ2 (LTC2908-B1)
Guaranteed Threshold Accuracy:
±
1.5% of
Monitored Voltage Over Temperature
Internal V
CC
Auto Select
Power Supply Glitch Immunity
200ms Reset Time Delay
Active Low Open-Drain RST Output
Low Profile (1mm) SOT-23 (ThinSOT
TM
) and Plastic
(2mm
×
3mm) DFN Packages
The LTC
®
2908 is a six supply monitor for systems with a
large number of supply voltages that require a precise and
compact solution. The common reset output remains low
until all six inputs have been in compliance for 200ms.
The LTC2908 features a tight 1.5% threshold accuracy
over the entire operating temperature range (– 40°C to
85°C) and glitch immunity to ensure reliable reset opera-
tion without false triggering. The open-drain RST output
state is guaranteed to be in the correct state as long as V1
and/or V2 is 0.5V or greater.
The LTC2908 also features two adjustable inputs with a
nominal threshold level at 0.5V. This product provides a
precise, space-conscious, micropower and general pur-
pose solution for any kind of system requiring supply
monitors.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
*Patent pending.
APPLICATIO S
s
s
s
s
s
s
Network Servers
Wireless Base Stations
Optical Networking Systems
Mulitvoltage Systems
Desktop and Notebook Computers
Handheld Devices
TYPICAL APPLICATIO
12V
DC/DC
DC/DC
DC/DC
DC/DC
DC/DC
3.3V
2.5V
Six Supply Monitor with 5% Tolerance
(12V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V)
RST Output Voltage vs V1
with 10k Pull-Up Resistor to V1
0.4
V3 = V4 = V
ADJ1
=
V
ADJ2
= GND
RST OUTPUT VOLTAGE (V)
1.8V
1.5V
1.2V
0.1µF 0.1µF
2.15M
100k
124k
100k
SYSTEM
V1
V2 V3 V4
V
ADJ1
LTC2908-B1
GND
V
ADJ2
RST
2908 TA01a
U
0.3
0.2
V2 = GND
0.1
V2 = V1
0
0
0.2
0.4
V1 (V)
2908 TA01b
U
U
0.6
0.8
2908f
1

LTC2908IDDB8-B1 Related Products

LTC2908IDDB8-B1 LTC2908CDDB8-B1#PBF LTC2908CDDB8-B1 LTC2908IDDB8-A1#PBF LTC2908CDDB8-A1#PBF LTC2908IDDB8-B1#PBF
Description IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 2 MM, PLASTIC, M0-229WECD-1, DFN-8, Power Management Circuit
Is it lead-free? Contains lead Lead free Contains lead Lead free Lead free Lead free
Is it Rohs certified? incompatible conform to incompatible conform to conform to conform to
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
Parts packaging code DFN DFN DFN DFN DFN DFN
package instruction VSON, SOLCC8,.08,20 HVSON, HVSON, SOLCC8,.08,20 HVSON, HVSON, HVSON,
Contacts 8 8 8 8 8 8
Reach Compliance Code compli compliant compliant compliant compliant compli
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Adjustable threshold YES YES YES YES YES YES
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code R-PDSO-N8 R-PDSO-N8 R-PDSO-N8 R-PDSO-N8 R-PDSO-N8 R-PDSO-N8
JESD-609 code e0 e3 e0 e3 e3 e3
length 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm
Humidity sensitivity level 1 1 1 1 1 1
Number of channels 6 6 6 6 6 6
Number of functions 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8
Maximum operating temperature 85 °C 70 °C 70 °C 85 °C 70 °C 85 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code VSON HVSON HVSON HVSON HVSON HVSON
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) 255 250 255 250 250 250
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 0.8 mm 0.85 mm 0.85 mm 0.85 mm 0.85 mm 0.85 mm
Maximum supply voltage (Vsup) 6 V 6 V 6 V 6 V 6 V 6 V
Minimum supply voltage (Vsup) 0.5 V 0.5 V 0.5 V 0.5 V 0.5 V 0.5 V
Nominal supply voltage (Vsup) 3.3 V 3.3 V 3.3 V 5 V 5 V 3.3 V
surface mount YES YES YES YES YES YES
Temperature level INDUSTRIAL COMMERCIAL COMMERCIAL INDUSTRIAL COMMERCIAL INDUSTRIAL
Terminal surface TIN LEAD Matte Tin (Sn) TIN LEAD Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD
Terminal pitch 0.5 mm 0.5 mm 0.5 mm 0.5 mm 0.5 mm 0.5 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 40 NOT SPECIFIED 40 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 2 mm 2 mm 2 mm 2 mm 2 mm 2 mm
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