LTC2906CTS8#TRPBF datasheet, PDF

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LTC2906CTS8#TRPBF: DescriptionProcessor Supervisor 1 Open Drain 8-Pin TSOT-23 T/R; File Size194KB，16 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC2906CTS8#TRPBF Overview

Processor Supervisor 1 Open Drain 8-Pin TSOT-23 T/R

LTC2906CTS8#TRPBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
Number of Supervisors	1
Maximum Reset Active Time (ms)	260
Output Driver	Open Drain
Power Fail Detection	No
Watchdog Timer	No
Manual Reset	No
Chip Enable Signals	No
Battery Backup Switching	Yes
Minimum Operating Temperature (°C)	0
Maximum Operating Temperature (°C)	70
Supplier Temperature Grade	Commercial
Packaging	Tape and Reel
Type	Power Supply Monitor
Pin Count	8
Standard Package Name	SOT-23
Supplier Package	TSOT-23
Mounting	Surface Mount
Package Height	0.9(Max)
Package Length	2.9
Package Width	1.75(Max)
PCB changed	8
Lead Shape	Gull-wing

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LTC2906/LTC2907

Precision Dual Supply Monitors

with One Pin-Selectable Threshold

and One Adjustable Input

FEATURES

DESCRIPTIO

Monitors Two Inputs Simultaneously

Three Threshold Selections for 5V, 3.3V or 2.5V

Supplies

Low Voltage Adjustable Input (0.5V)

Three Supply Tolerances (5%, 7.5%, 10%)

Guaranteed Threshold Accuracy:

±1.5%

Monitored Voltage Over Temperature

Internal V

Auto Select

Power Supply Glitch Immunity

200ms Reset Time Delay (LTC2906 Only)

Adjustable Reset Time Delay (LTC2907 Only)

Open Drain RST Output

Guaranteed RST for V1

≥

1V or V

≥

Low Profile (1mm) SOT-23 (ThinSOT

) and

Plastic (3mm

2mm) DFN Packages

Desktop and Notebook Computers

Handheld Devices

Network Servers

Core, I/O Monitor

, LTC and LT are registered trademarks of Linear Technology Corporation.

The LTC

2906/LTC2907 are dual supply monitors in-

tended for systems with multiple supply voltages. The

dual supply monitors have a common reset output with

delay (200ms for the LTC2906 and adjustable using an

external capacitor for the LTC2907). These products pro-

vide a precise, space-conscious and micropower solution

for supply monitoring.

The LTC2906/LTC2907 feature a tight 1.5% threshold

accuracy over the whole operating temperature range

and glitch immunity to ensure reliable reset operation

without false triggering. The open drain RST output state

is guaranteed to be in the correct state for V1 and/or V

down to 1V.

The LTC2906/LTC2907 also feature one adjustable input

with a nominal threshold level at 0.5V, another input with

three possible input threshold levels, and three supply

tolerances for possible margining. These features provide

versatility for any kind of system requiring dual supply

monitors. Two three-state input pins program the thresh-

old and tolerance level without requiring any external

components.

APPLICATIO S

TYPICAL APPLICATIO

Dual Supply Monitor with Adjustable Tolerance (2.5V, 0.8V)

DC/DC

CONVERTER

2.5V

0.8V

49.9k

LTC2907

0.1µF

TOL

TMR

22nF

GND

RST

ADJ

0.1µF

100k

SYSTEM

LOGIC

Supply Selection Programming

5.0

3.3

2.5

OPEN

GND

Tolerance Programming

TOLERANCE

7.5%

29067 TA01

TOLERANCE = 10%

10%

TOL

OPEN

GND

29067f

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