CAT1025VE-28 datasheet, PDF - EEWORLD Datasheet

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CAT1025VE-28: Description1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, LEAD AND HALOGEN FREE, SOIC-8; CategoryPower/power management The power supply circuit; File Size191KB，20 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn; Environmental Compliance

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CAT1025VE-28 Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, LEAD AND HALOGEN FREE, SOIC-8

CAT1025VE-28 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	ON Semiconductor
Parts packaging code	SOIC
package instruction	SOP,
Contacts	8
Reach Compliance Code	compliant
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
length	4.9 mm
Number of channels	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	AUTOMOTIVE
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	3.9 mm

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CAT1024, CAT1025

Supervisory Circuits with I C Serial 2k-bit

CMOS EEPROM and Manual Reset

FEATURES

Precision Power Supply Voltage Monitor

— 5 V, 3.3 V and 3 V systems

— Five threshold voltage options

Active High or Low Reset

— Valid reset guaranteed at V

= 1 V

400 kHz I

C Bus

2.7 V to 5.5 V Operation

Low power CMOS technology

16-Byte Page Write Buffer

Built-in inadvertent write protection

— WP pin (CAT1025)

1,000,000 Program/Erase cycles

Manual Reset Input

100 year data retention

Industrial and extended temperature ranges

Green packages available with NiPdAu Lead

finished

DESCRIPTION

The CAT1024 and CAT1025 are complete memory

and supervisory solutions for microcontroller-based

systems. A 2k-bit serial EEPROM memory and a

system power supervisor with brown-out protection

are integrated together in low power CMOS techno–

logy. Memory interface is via a 400 kHz I

C bus.

The CAT1025 provides a precision V

sense circuit

and two open drain outputs: one (RESET) drives high

¯¯¯¯¯¯

and the other (RESET) drives low whenever V

falls

below the reset threshold voltage. The CAT1025 also

has a Write Protect input (WP). Write operations are

disabled if WP is connected to a logic high.

The CAT1024 also provides a precision V

sense

¯¯¯¯¯¯

circuit, but has only a RESET output and does not

have a Write Protect input.

The power supply monitor and reset circuit protect

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

voltages support 5 V, 3.3 V and 3 V systems. If power

supply voltages are out of tolerance reset signals

become active, preventing the system microcontroller,

ASIC or peripherals from operating. Reset signals

become inactive typically 200 ms after the supply

voltage exceeds the reset threshold level. With both

active high and low reset signals, interface to

microcontrollers and other ICs is simple. In addition,

¯¯¯¯¯¯

the RESET pin or a separate input, ¯¯¯, can be used

as an input for push-button manual reset capability.

The CAT1024/25 memory features a 16-byte page. In

addition, hardware data protection is provided by a

sense circuit that prevents writes to memory

whenever V

falls below the reset threshold or until

reaches the reset threshold during power up.

Available packages include an 8-pin PDIP and a

surface mount 8-pin SO, 8-pin TSSOP, 8-pin TDFN

and 8-pin MSOP packages. The TDFN package thick-

ness is 0.8 mm maximum. TDFN footprint is 3 x 3 mm.

For Ordering Information details, see page 19.

Characteristics subject to change without notice

Doc. No. MD-3008 Rev. R

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