X40411 판매점 - (X40410 - X40415) Dual Voltage Monitor

X40411 반도체 회로 부품 판매점

(X40410 - X40415) Dual Voltage Monitor

Intersil Corporation

Data Sheet

X40410, X40411, X40414, X40415

4kbit EEPROM

March 28, 2005

FN8116.0

Dual Voltage Monitor with Integrated CPU

Supervisor

FEATURES

• Dual voltage detection and reset assertion

—Standard reset threshold settings

See Selection table on page 2.

—Adjust low voltage reset threshold voltages

using special programming sequence

—Reset signal valid to VCC = 1V

—Monitor three voltages or detect power fail

• Independent Core Voltage Monitor (V2MON)

• Fault detection register

• Selectable power-on reset timeout (0.05s,

0.2s, 0.4s, 0.8s)

• Selectable watchdog timer interval (25ms,

200ms,1.4s, off)

• Low power CMOS

—25µA typical standby current, watchdog on

—6µA typical standby current, watchdog off

• 4Kbits of EEPROM

—16 byte page write mode

—5ms write cycle time (typical)

www.DataSheet4U.com

• Built-in inadvertent write protection

—Power-up/power-down protection circuitry

—Block lock protect none or 1/2 of EEPROM

• 400kHz 2-wire interface

• 2.7V to 5.5V power supply operation

BLOCK DIAGRAM

• Available packages

—8-lead SOIC, TSSOP

• Monitor Voltages: 5V to 0.9V

• Memory Security

• Independent Core Voltage Monitor

APPLICATIONS

• Communication Equipment

—Routers, Hubs, Switches

—Disk Arrays, Network Storage

• Industrial Systems

—Process Control

—Intelligent Instrumentation

• Computer Systems

— Computers

—Network Servers

DESCRIPTION

The X40410/11/14/15 combines power-on reset con-

trol, watchdog timer, supply voltage supervision, and

secondary voltage supervision, and Block Lock™ pro-

tect serial EEPROM in one package. This combination

lowers system cost, reduces board space require-

ments, and increases reliability.

Applying voltage to VCC activates the power-on reset

circuit which holds RESET/RESET active for a period of

time. This allows the power supply and system oscilla-

SDA

SCL

VCC

(V1MON)

V2MON

Data

Command

Decode Test

& Control

Logic

Threshold

Reset Logic

Fault Detection

Status

EEPROM

Array

Watchdog Timer

and

Reset Logic

User Programmable

VTRIP1

User Programmable

VTRIP2

VCC or

+ V2MON

Power-on,

Low Voltage

Reset

Generation

*X40410/11= V2MON*

X40414/15 = VCC

WDO

RESET

X40410/14

RESET

X40411/15

V2FAIL

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

X40410, X40411, X40414, X40415

Low VCC detection circuitry protects the user’s system

from low voltage conditions, resetting the system when

VCC falls below the minimum VTRIP1 point. RESET/RE-

SET is active until VCC returns to proper operating level

and stabilizes. A second voltage monitor circuit tracks

the unregulated supply to provide a power fail warning

or monitors different power supply voltage. Three com-

mon low voltage combinations are available, however,

Intersil’s unique circuits allows the threshold for either

voltage monitor to be reprogrammed to meet special

needs or to fine-tune the threshold for applications re-

quiring higher precision.

The Watchdog Timer provides an independent protec-

tion mechanism for microcontrollers. When the micro-

controller fails to restart a timer within a selectable

time out interval, the device activates the WDO signal.

The user selects the interval from three preset values.

Once selected, the interval does not change, even

after cycling the power.

The memory portion of the device is a CMOS Serial

EEPROM array with Intersil’s Block Lock protection.

The array is internally organized as x 8. The device

features a 2-wire interface and software protocol

allowing operation on an I2C® bus.

The device utilizes Intersil’s proprietary Direct Write™

cell, providing a minimum endurance of 100,000

cycles and a minimum data retention of 100 years.

Triple Voltage Monitors

Device

X4040/11

-A

-B

-C

X40414/15

-A

-B

-C

Expected System Voltages

5V; 3V or 3.3V

5V; 3V

3V; 3.3V; 1.8V

3V; 3.3V; 1.5V

3V; 1.5V

3V or 3.3V; 1.1 or 1.2V

Vtrip1(V)

2.0–4.75*

4.55–4.65*

4.35–4.45*

2.85–2.95*

2.0–4.75*

2.85–2.95*

2.55–2.65*

2.85–2.95*

*Voltage monitor requires VCC to operation. Others are independent of VCC.

Vtrip2(V)

1.70–4.75

2.85–2.95

2.55–2.65

1.65–1.75

0.90–3.50*

1.25–1.35*

0.95–1.05*

POR (system)

RESET = X40410

RESET = X40411

RESET = X40414

RESET = X40415

PIN CONFIGURATION

X40410/14, X40411/15

8-Pin SOIC

V2FAIL 1

V2MON 2

8 VCC

7 WDO

RESET/RESET

VSS

6 SCL

5 SDA

X40410/14, X40411/15

8-Pin TSSOP

WDO

VCC

V2FAIL

V2MON

8 SCL

7 SDA

6 VSS

5 RESET/RESET

PIN DESCRIPTION

SOIC TSSOP Name

Function

1 3 V2FAIL V2 Voltage Fail Output. This open drain output goes LOW when V2MON is less than VTRIP2 and

goes HIGH when V2MON exceeds VTRIP2. There is no power-up reset delay circuitry on this pin.

2 4 V2MON V2 Voltage Monitor Input. When the V2MON input is less than the VTRIP2 voltage, V2FAIL goes

LOW. This input can monitor an unregulated power supply with an external resistor divider or can

monitor a second power supply with no external components. Connect V2MON to VSS or VCC when

not used.The V2MON comparator is supplied by V2MON (X40410/11) or by VCC Input (X40414/15).

3 5 RESET/ RESET Output. (X40411/15) This is an active LOW, open drain output which goes active whenever

RESET VCC falls below VTRIP1. It will remain active until VCC rises above VTRIP1 and for the tPURST thereafter.

RESET Output. (X40410/14) This is an active HIGH CMOS output which goes active whenever VCC

falls below VTRIP1. It will remain active until VCC rises above VTRIP1 and for the tPURST thereafter.

4 6 VSS Ground

5 7 SDA Serial Data. SDA is a bidirectional pin used to transfer data into and out of the device. It has an open

drain output and may be wire ORed with other open drain or open collector outputs. This pin requires

a pull up resistor and the input buffer is always active (not gated).

Watchdog Input. A HIGH to LOW transition on the SDA (while SCL is toggled from HIGH to

LOW and followed by a stop condition) restarts the Watchdog timer. The absence of this transi-

tion within the watchdog time out period results in WDO going active.

2 FN8116.0

March 28, 2005

PDF 파일 내의 페이지 : 총 24 페이지

제조업체: Intersil Corporation

( intersil )

X40411 data

데이터시트 다운로드 :

[ X40411.PDF ]

[ X40411 다른 제조사 검색 ]

국내 전력반도체 판매점

상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743

일반적인 전자부품 판매점

디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14

X40411 반도체 회로 부품 판매점

(X40410 - X40415) Dual Voltage Monitor

국내 전력반도체 판매점

일반적인 전자부품 판매점

관련 데이터시트