CAT1026RI-28TE13 datasheet, PDF

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CAT1026RI-28TE13: Description2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MSOP-8; CategoryPower/power management The power supply circuit; File Size193KB，19 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn

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CAT1026RI-28TE13 Overview

2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MSOP-8

CAT1026RI-28TE13 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Parts packaging code	MSOP
package instruction	TSSOP,
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Adjustable threshold	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	S-PDSO-G8
JESD-609 code	e0
length	3 mm
Humidity sensitivity level	1
Number of channels	2
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Package shape	SQUARE
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	3 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3 mm
Base Number Matches	1

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CAT1026, CAT1027

Dual Voltage Supervisory

Circuits with I

C Serial

2k-bit CMOS EEPROM

http://onsemi.com

The CAT1026 and CAT1027 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 technology.

Memory interface is via a 400 kHz I

C bus.

The CAT1026 and CAT1027 provide a precision V

sense circuit

with five reset threshold voltage options that support 5 V, 3.3 V and

PDIP−8

TSSOP−8

CASE 646AA

CASE 948S

3 V systems. The power supply monitor and reset circuit protects

memory and systems controllers during power up/down and against

brownout conditions. If power supply voltages are out of tolerance

reset signals become active preventing the system microcontroller,

ASIC, or peripherals from operating.

The CAT1026 features two open drain reset outputs: one (RESET)

SOIC−8

drives high and the other (RESET) drives low whenever V

falls

CASE 751BD

below the threshold. Reset outputs become inactive typically 200 ms

after the supply voltage exceeds the reset threshold value. With both

active high and low reset signals, interface to microcontrollers and

other ICs is simple. CAT1027 has only a RESET output. In addition,

the RESET pin can be used as an input for push−button manual reset

MSOP−8

TDFN−8

capability.

CASE 846AD

CASE 511AL

The CAT1026 and CAT1027 provide an auxiliary voltage sensor

input, V

SENSE

, which is used to monitor a second system supply. The

auxiliary high impedance comparator drives the open drain output,

ORDERING INFORMATION

LOW

, whenever the sense voltage is below 1.25 V threshold.

For Ordering Information details, see page 13.

The CAT1027 is designed with a 1.6 second watchdog timer circuit

that resets a system to a known state if software or a hardware glitch

halts or “hangs” the system. The CAT1027 features a watchdog timer

interrupt input, WDI.

The on−chip 2k−bit EEPROM memory features a 16−byte page. In addition, hardware data protection is provided by a V

sense circuit that prevents writes to memory whenever V

falls below the reset threshold or until V

reaches the reset

threshold during power up.

Available packages include an 8−pin DIP and surface mount, 8−pin SO, 8−pin TSSOP, 8−pin TDFN and 8−pin MSOP

packages. The TDFN package thickness is 0.8 mm maximum. TDFN footprint is 3 x 3 mm.

Features

♦

Description

•

Precision V

Power Supply Voltage Monitor

•

5 V, 3.3 V and 3 V Systems

♦

Five Threshold Voltage Options

Additional Voltage Monitoring

♦

Externally Adjustable Down to 1.25 V

Watchdog Timer (CAT1027 Only)

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

1,000,000 Program/Erase Cycles

Manual Reset Capability

100 Year Data Retention

Industrial and Extended Temperature Ranges

8−Pin DIP, SOIC, TSSOP, MSOP or TDFN (3 x 3 mm

foot−print) Packages

♦

TDFN max Height is 0.8 mm

•

These Devices are Pb−Free, Halogen Free/BFR Free

and are RoHS Compliant

Semiconductor Components Industries, LLC, 2011

November, 2011

−

Rev. 18

Publication Order Number:

CAT1026/D

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