Datasheet Linear Technology LTC2909

Manufacturer	Linear Technology
Series	LTC2909

Precision Triple/Dual Input UV, OV and Negative Voltage Monitor

Datasheets

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PDF, 196 Kb, Revision: B, File uploaded: Oct 25, 2017

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Packaging

	LTC2909CDDB-2.5#PBF	LTC2909CDDB-2.5#TRMPBF	LTC2909CDDB-2.5#TRPBF	LTC2909CDDB-3.3#PBF	LTC2909CDDB-3.3#TRMPBF	LTC2909CDDB-3.3#TRPBF	LTC2909CDDB-5#PBF	LTC2909CDDB-5#TRMPBF	LTC2909CDDB-5#TRPBF	LTC2909CTS8-2.5#PBF	LTC2909CTS8-2.5#TRMPBF	LTC2909CTS8-2.5#TRPBF	LTC2909CTS8-3.3#PBF	LTC2909CTS8-3.3#TRMPBF	LTC2909CTS8-3.3#TRPBF	LTC2909CTS8-5#PBF	LTC2909CTS8-5#TRMPBF	LTC2909CTS8-5#TRPBF	LTC2909IDDB-2.5#PBF	LTC2909IDDB-2.5#TRMPBF	LTC2909IDDB-2.5#TRPBF	LTC2909IDDB-3.3#PBF	LTC2909IDDB-3.3#TRMPBF	LTC2909IDDB-3.3#TRPBF	LTC2909IDDB-5#PBF	LTC2909IDDB-5#TRMPBF	LTC2909IDDB-5#TRPBF	LTC2909ITS8-2.5#PBF	LTC2909ITS8-2.5#TRMPBF	LTC2909ITS8-2.5#TRPBF	LTC2909ITS8-3.3#PBF	LTC2909ITS8-3.3#TRMPBF	LTC2909ITS8-3.3#TRPBF	LTC2909ITS8-5#PBF	LTC2909ITS8-5#TRMPBF	LTC2909ITS8-5#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Package	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 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	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 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	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 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	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing
Package Code	DDB	DDB	DDB	DDB	DDB	DDB	DDB	DDB	DDB	TS8	TS8	TS8	TS8	TS8	TS8	TS8	TS8	TS8	DDB	DDB	DDB	DDB	DDB	DDB	DDB	DDB	DDB	TS8	TS8	TS8	TS8	TS8	TS8	TS8	TS8	TS8
Package Index	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1702	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637	05-08-1637
Pin Count	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8

Parametrics

Parameters / Models	LTC2909CDDB-2.5#PBF	LTC2909CDDB-2.5#TRMPBF	LTC2909CDDB-2.5#TRPBF	LTC2909CDDB-3.3#PBF	LTC2909CDDB-3.3#TRMPBF	LTC2909CDDB-3.3#TRPBF	LTC2909CDDB-5#PBF	LTC2909CDDB-5#TRMPBF	LTC2909CDDB-5#TRPBF	LTC2909CTS8-2.5#PBF	LTC2909CTS8-2.5#TRMPBF	LTC2909CTS8-2.5#TRPBF	LTC2909CTS8-3.3#PBF	LTC2909CTS8-3.3#TRMPBF	LTC2909CTS8-3.3#TRPBF	LTC2909CTS8-5#PBF	LTC2909CTS8-5#TRMPBF	LTC2909CTS8-5#TRPBF	LTC2909IDDB-2.5#PBF	LTC2909IDDB-2.5#TRMPBF	LTC2909IDDB-2.5#TRPBF	LTC2909IDDB-3.3#PBF	LTC2909IDDB-3.3#TRMPBF	LTC2909IDDB-3.3#TRPBF	LTC2909IDDB-5#PBF	LTC2909IDDB-5#TRMPBF	LTC2909IDDB-5#TRPBF	LTC2909ITS8-2.5#PBF	LTC2909ITS8-2.5#TRMPBF	LTC2909ITS8-2.5#TRPBF	LTC2909ITS8-3.3#PBF	LTC2909ITS8-3.3#TRMPBF	LTC2909ITS8-3.3#TRPBF	LTC2909ITS8-5#PBF	LTC2909ITS8-5#TRMPBF	LTC2909ITS8-5#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	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	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	no	no	no	no	no	no	no	no	no	no	no	no	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	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor	Supervisor
Isupply, µA	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50
Minimum Reset Level, V	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
Number of Supplies	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	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	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-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	no	no	no	no	no	no	no	no	no	no	no	no	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	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Reset Pulse Width	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj	200ms, Adj
Reset Voltage	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj	2.5V, 3.3V, 5V, Adj, -Adj
Second Reset Voltage	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj
Third Reset Voltage	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj	Adj, -Adj
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	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	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	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5
Watchdog Timer	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no

Eco Plan

	LTC2909CDDB-2.5#PBF	LTC2909CDDB-2.5#TRMPBF	LTC2909CDDB-2.5#TRPBF	LTC2909CDDB-3.3#PBF	LTC2909CDDB-3.3#TRMPBF	LTC2909CDDB-3.3#TRPBF	LTC2909CDDB-5#PBF	LTC2909CDDB-5#TRMPBF	LTC2909CDDB-5#TRPBF	LTC2909CTS8-2.5#PBF	LTC2909CTS8-2.5#TRMPBF	LTC2909CTS8-2.5#TRPBF	LTC2909CTS8-3.3#PBF	LTC2909CTS8-3.3#TRMPBF	LTC2909CTS8-3.3#TRPBF	LTC2909CTS8-5#PBF	LTC2909CTS8-5#TRMPBF	LTC2909CTS8-5#TRPBF	LTC2909IDDB-2.5#PBF	LTC2909IDDB-2.5#TRMPBF	LTC2909IDDB-2.5#TRPBF	LTC2909IDDB-3.3#PBF	LTC2909IDDB-3.3#TRMPBF	LTC2909IDDB-3.3#TRPBF	LTC2909IDDB-5#PBF	LTC2909IDDB-5#TRMPBF	LTC2909IDDB-5#TRPBF	LTC2909ITS8-2.5#PBF	LTC2909ITS8-2.5#TRMPBF	LTC2909ITS8-2.5#TRPBF	LTC2909ITS8-3.3#PBF	LTC2909ITS8-3.3#TRMPBF	LTC2909ITS8-3.3#TRPBF	LTC2909ITS8-5#PBF	LTC2909ITS8-5#TRMPBF	LTC2909ITS8-5#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

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Dual/Triple Power Supply Monitor for Undervoltage and Overvoltage on Positive and Negative Supplies &mdash LT Journal
PDF, 352 Kb, File published: Nov 21, 2006
Extract from the document
DESIGN FEATURES L Dual/Triple Power Supply Monitor for
Undervoltage and Overvoltage on
Positive and Negative Supplies
by Andrew Thomas Introduction
An accurate power supply monitor
can signal when a supply overvoltage
or undervoltage condition threatens
to cause system failures, allowing
the system to deal with the situation
gracefully.
The LTC2909 is a highly customizable monitoring solution with
adjustable input thresholds, input
polarity selection, a multimode reset
timer, and an open-drain RST output.
Adjustable input thresholds allow the
user to set any trip threshold for the
comparator, subject only to the accuracy limitations of the part, instead
of having to pick from a factory-set
limited collection of thresholds.
Each adjustable input can be
conп¬Ѓgured in either polarity, allowing it to monitor negative or positive
supply voltages for undervoltage or
overvoltage. Polarity selection is controlled by simple connection of the …

Model Line

Series: LTC2909 (36)

LTC2909CDDB-2.5#PBF LTC2909CDDB-2.5#TRMPBF LTC2909CDDB-2.5#TRPBF LTC2909CDDB-3.3#PBF LTC2909CDDB-3.3#TRMPBF LTC2909CDDB-3.3#TRPBF LTC2909CDDB-5#PBF LTC2909CDDB-5#TRMPBF LTC2909CDDB-5#TRPBF LTC2909CTS8-2.5#PBF LTC2909CTS8-2.5#TRMPBF LTC2909CTS8-2.5#TRPBF LTC2909CTS8-3.3#PBF LTC2909CTS8-3.3#TRMPBF LTC2909CTS8-3.3#TRPBF LTC2909CTS8-5#PBF LTC2909CTS8-5#TRMPBF LTC2909CTS8-5#TRPBF LTC2909IDDB-2.5#PBF LTC2909IDDB-2.5#TRMPBF LTC2909IDDB-2.5#TRPBF LTC2909IDDB-3.3#PBF LTC2909IDDB-3.3#TRMPBF LTC2909IDDB-3.3#TRPBF LTC2909IDDB-5#PBF LTC2909IDDB-5#TRMPBF LTC2909IDDB-5#TRPBF LTC2909ITS8-2.5#PBF LTC2909ITS8-2.5#TRMPBF LTC2909ITS8-2.5#TRPBF LTC2909ITS8-3.3#PBF LTC2909ITS8-3.3#TRMPBF LTC2909ITS8-3.3#TRPBF LTC2909ITS8-5#PBF LTC2909ITS8-5#TRMPBF LTC2909ITS8-5#TRPBF

Manufacturer's Classification

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