Datasheet > CAT812JEUS-T3

CAT812JEUS-T3

更新时间： 2025-07-17 05:13:47

品牌	Logo	应用领域
CATALYST		光电二极管
页数	文件大小	规格书
9页	89K
描述
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4, PLASTIC, SOT-143, 4 PIN, Power Management Circuit

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CAT812JEUS-T3 数据手册

CAT811, CAT812

4-Pin Microprocessor Power Supply Supervisors with Manual Reset

FEATURES

DESCRIPTION

ꢀ Precision monitoring of

+5.0 V (± 5%, ± 10%, ± 20%),

+3.3 V (± 5%, ± 10%),

The CAT811 and CAT812 are microprocessor

supervisory circuits that monitor power supplies. The

CAT811 and CAT812 are direct replacements for the

MAX811andMAX812inapplicationsoperatingoverthe

industrial temperature range; both have a manual reset

input.

+3.0 V (± 10%) and

+2.5 V (± 5%) power supplies

ꢀ Manual reset input

Thesedevicesgeneratearesetsignal,whichisasserted

whilethepowersupplyvoltageisbelowapresetthreshold

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

ꢀ Offered in two output configurations:

- CAT811: Active LOW reset

- CAT812: Active HIGH reset

has risen above that level. The underlying floating gate

ꢀ Direct replacements for the MAX811 and

MAX812 in applications operating over the

industrial temperature range

2(TM)

technology, AE

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.

ꢀ Reset valid down to V = 1.0 V

ꢀ 6 µA power supply current

ꢀ Power supply transient immunity

The CAT811 features a RESET push-pull output (active

LOW) and the CAT812 features a RESET push-pull

output (active HIGH).

ꢀ Available in SOT-143 packages with Sn or

NiPdAu Green Lead finishes.

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

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.

APPLICATIONS

ꢀ Computers

The CAT811/812 are fully specified over the industrial

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

a compact 4-pin SOT143 package.

ꢀ Servers

ꢀ Laptops

ꢀ Cable modems

ꢀꢀ Wireless communications

ꢀ Embedded control systems

ꢀ White goods

ꢀ Power meters

ꢀ Intelligent instruments

ꢀ PDAs and handheld equipment

PIN CONFIGURATION

THRESHOLD SUFFIX SELECTOR

Nominal Threshold Threshold Suffix

Voltage

4.63V

4.38V

4.00V

3.08V

2.93V

2.63V

2.32V

Designation

GND

CAT811

CAT812

RESET

Characteristics subject to change without notice

Doc. No. 3005, Rev. R

12 3 4 5 6 7...9

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