Datasheet Linear Technology LTC2904

Manufacturer	Linear Technology
Series	LTC2904

Precision Dual Supply Monitor with Pin-Selectable Thresholds

Datasheets

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PDF, 160 Kb, Revision: D, File uploaded: Oct 25, 2017

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Packaging

	LTC2904CDDB#PBF	LTC2904CDDB#TRMPBF	LTC2904CDDB#TRPBF	LTC2904CTS8#PBF	LTC2904CTS8#TRMPBF	LTC2904CTS8#TRPBF	LTC2904IDDB#PBF	LTC2904IDDB#TRMPBF	LTC2904IDDB#TRPBF	LTC2904ITS8#PBF	LTC2904ITS8#TRMPBF	LTC2904ITS8#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing
Package Code	DDB	DDB	DDB	TS8	TS8	TS8	DDB	DDB	DDB	TS8	TS8	TS8
Package Index	05-08-1702	05-08-1702	05-08-1702	05-08-1637	05-08-1637	05-08-1637	05-08-1702	05-08-1702	05-08-1702	05-08-1637	05-08-1637	05-08-1637
Pin Count	8	8	8	8	8	8	8	8	8	8	8	8

Parametrics

Parameters / Models	LTC2904CDDB#PBF	LTC2904CDDB#TRMPBF	LTC2904CDDB#TRPBF	LTC2904CTS8#PBF	LTC2904CTS8#TRMPBF	LTC2904CTS8#TRPBF	LTC2904IDDB#PBF	LTC2904IDDB#TRMPBF	LTC2904IDDB#TRPBF	LTC2904ITS8#PBF	LTC2904ITS8#TRMPBF	LTC2904ITS8#TRPBF
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
Features	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor
Isupply, µA	65	65	65	65	65	65	65	65	65	65	65	65
Minimum Reset Level, V	1	1	1	1	1	1	1	1	1	1	1	1
Number of Supplies	2	2	2	2	2	2	2	2	2	2	2	2
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Power Fail Warning	no	no	no	no	no	no	no	no	no	no	no	no
Power Up/Down Reset	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Reset Pulse Width	200ms	200ms	200ms	200ms	200ms	200ms	200ms	200ms	200ms	200ms	200ms	200ms
Reset Voltage	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V	5V, 3.3V, 2.5V
Second Reset Voltage	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V	3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V
Threshold Accuracy, %	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5
Vs Max, V	7	7	7	7	7	7	7	7	7	7	7	7
Watchdog Timer	no	no	no	no	no	no	no	no	no	no	no	no

Eco Plan

	LTC2904CDDB#PBF	LTC2904CDDB#TRMPBF	LTC2904CDDB#TRPBF	LTC2904CTS8#PBF	LTC2904CTS8#TRMPBF	LTC2904CTS8#TRPBF	LTC2904IDDB#PBF	LTC2904IDDB#TRMPBF	LTC2904IDDB#TRPBF	LTC2904ITS8#PBF	LTC2904ITS8#TRMPBF	LTC2904ITS8#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LTC2905

Articles

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Compact, Versatile, Accurate, 3-State Programmable Power Supply Supervisors &mdash LT Journal
PDF, 234 Kb, File published: Feb 1, 2004
Extract from the document
DESIGN FEATURES Compact, Versatile, Accurate,
3-State Programmable Power
by Eko T. Lisuwandi
Supply Supervisors
Introduction
Many modern electronic systems must
know when the power supply (or supplies) is present and stable before start
up. A power supply monitor fills this
need by generating a Power-Good
signal when all is ready. Likewise,
once running, most systems require
that the supply monitor indicate
when the power supply has dropped
to a minimum thresholdвЂ”to prevent
unreliable operation and possibly
initialize housekeeping operations.
An accurate supply monitor helps to
avoid spurious resets and increases
up-time (see sidebar).
Four new power supply supervisors
improve system reliability by offering
very accurate reset thresholds. They
save design time, production costs and …

Model Line

Series: LTC2904 (12)

LTC2904CDDB#PBF LTC2904CDDB#TRMPBF LTC2904CDDB#TRPBF LTC2904CTS8#PBF LTC2904CTS8#TRMPBF LTC2904CTS8#TRPBF LTC2904IDDB#PBF LTC2904IDDB#TRMPBF LTC2904IDDB#TRPBF LTC2904ITS8#PBF LTC2904ITS8#TRMPBF LTC2904ITS8#TRPBF

Manufacturer's Classification

Monitor, Control and Protection > Supervisory Circuits > Dual Supply Monitors