CAT809MEXR-T datasheet, PDF - EEWORLD Datasheet

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CAT809MEXR-T: DescriptionPower Supply Support Circuit, Fixed, 1 Channel, +4.38VV, PDSO3, SC-70, 3 PIN; CategoryPower/power management The power supply circuit; File Size60KB，13 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT809MEXR-T Overview

Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, PDSO3, SC-70, 3 PIN

CAT809MEXR-T Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Parts packaging code	SOIC
package instruction	VSSOP, SOT-323
Contacts	3
Reach Compliance Code	unknown
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G3
JESD-609 code	e0
length	2 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	3
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	VSSOP
Encapsulate equivalent code	SOT-323
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	240
power supply	5 V
Certification status	Not Qualified
Maximum seat height	1 mm
Maximum supply current (Isup)	0.02 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	1.2 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Threshold voltage nominal	+4.38V
Maximum time at peak reflow temperature	30
width	1.25 mm
Base Number Matches	1

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CAT809, CAT810

3-Pin Microprocessor Power Supply Supervisors

FEATURES

Precision monitoring of

GEN

ALO

Direct replacements for the MAX809 and

+5.0 V (+/- 5%, +/- 10%, +/- 20%),

+3.3 V (+/- 5%, +/ 10%),

+3.0 V (+/- 10%) and

+2.5 V (+/- 5%) power supplies

Offered in two output configurations:

MAX810 in applications operating over the

industrial temperature range

Reset valid down to V

= 1.0 V

A power supply current

Power supply transient immunity

Compact 3-pin SOT23 and SC70 packages

Industrial temperature range: -40˚C to +85˚C

- CAT809: Active LOW reset

- CAT810: Active HIGH reset

APPLICATIONS

Computers

Servers

Laptops

Cable modems

Wireless communications

Embedded control systems

White goods

Power meters

Intelligent instruments

PDAs and handheld equipment

DESCRIPTION

The CAT809 and CAT810 are

µP

supervisory circuits

that monitor power supplies in digital systems. The

CAT809 and CAT810 are direct replacements for the

MAX809 and MAX810 in applications operating over the

industrial temperature range.

These devices generate a reset signal, which is asserted

while the power supply voltage is below a preset threshold

level and for at least 140 ms after the power supply level

has risen above that level. The underlying floating gate

technology, AE

2(TM)

used by Catalyst Semiconductor,

makes it possible to offer any custom reset threshold

value. Seven industry standard threshold levels are

offered to support +5.0 V, +3.3 V, +3.0 V and +2.5 V

systems.

The CAT809 features a

RESET

push-pull output (active

LOW) and the CAT810 features a RESET push-pull

output (active HIGH).

Fast transients on the power supply are ignored and the

output is guaranteed to be in the correct state at V

levels as low as 1.0 V.

The CAT809/810 are fully specified over the industrial

temperature range (-40˚C to 85˚C) and are available in

compact 3-pin SOT23 and SC70 packages.

THRESHOLD SUFFIX SELECTOR

Nominal Threshold

Voltage

4.63V

4.38V

4.00V

3.08V

2.93V

2.63V

2.32V

Threshold Suffix

Designation

PIN CONFIGURATION

GND

CAT809

(CAT810)

RESET 2

(RESET)

VCC

3-Lead SOT23

3-Lead SC70

Characteristics subject to change without notice

Doc. No. 3004, Rev. R

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