LTC693

更新时间： 2024-11-30 22:51:47

品牌	Logo	应用领域
凌特 - Linear		微处理器监控
页数	文件大小	规格书
16页	309K
描述
Microprocessor Supervisory Circuits

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LTC693 数据手册

LTC692/LTC693

Microprocessor

Supervisory Circuits

DESCRIPTIO

EATURE

■

UL Recognized

TheLTC692/LTC693providecompletepowersupplymoni-

toring and battery control functions for microprocessor

reset, batterybackup, CMOSRAMwriteprotection, power

failure warning and watchdog timing. A precise internal

voltage reference and comparator circuit monitor the

power supply line. When an out-of-tolerance condition

occurs,theresetoutputsareforcedtoactivestatesandthe

Chip Enable output unconditionally write-protects exter-

nal memory. In addition, the RESET output is guaranteed

to remain logic low even with V_CCas low as 1V.

Guaranteed Reset Assertion at V_CC= 1V

1.5mA Maximum Supply Current

Fast (35ns Max.) On-Board Gating of RAM Chip

Enable Signals

■

SO8 and SO16 Packaging

4.40V Precision Voltage Monitor

Power OK/Reset Time Delay:

200ms or Adjustable

■

Minimum External Component Count

1µA Maximum Standby Current

Voltage Monitor for Power Fail or

Low Battery Warning

Thermal Limiting

Performance Specified Over Temperature

Superior Upgrade for MAX690 Family

The LTC692/LTC693 power the active CMOS RAMs with a

charge pumped NMOS power switch to achieve low drop-

out and low supply current. When primary power is lost,

auxiliarypower,connectedtothebatteryinputpin,powers

the RAMs in standby through an efficient PMOS switch.

■

For an early warning of impending power failure, the

LTC692/LTC963 provide an internal comparator with a

user-defined threshold. An internal watchdog timer is

also available, which forces the reset pins to active states

when the watchdog input is not toggled prior to a preset

time-out period.

O U

PPLICATI

■

Critical µP Power Monitoring

Intelligent Instruments

Battery-Powered Computers and Controllers

Automotive Systems

TYPICAL APPLICATI

RESET Output Voltage vs

Supply Voltage

LT1086-5

T = 25°C

≥ 7.5V

EXTERNAL PULL-UP = 10µA

= 0V

POWER TO

µP

OUT

BATT

CMOS RAM POWER

0.1µF

LTC692

LTC693

100µF

10µF

ADJ

µP

SYSTEM

BATT

µP RESET

µP NMI

RESET

PFO

51k

10k

I/O LINE

PFI

WDI

GND

LTC692/3 • TA01

0.1µF

100Ω

MICROPROCESSOR RESET, BATTERY BACKUP, POWER FAILURE

WARNING AND WATCHDOG TIMING ARE ALL IN A SINGLE CHIP

FOR MICROPROCESSOR SYSTEMS.

SUPPLY VOLTAGE (V)

LTC692/3 • TA02

12 3 4 5 6 7...16

中文翻译

下载PDF

与LTC693相关器件

型号	品牌	获取价格	描述	数据表
LTC693_15	Linear	获取价格	Microprocessor Supervisory Circuits
LTC6930	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-4.19-TRMPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-4.19-TRPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-5.00-TRMPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-5.00-TRPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-7.37-TRMPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-7.37-TRPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-8.00-TRMPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill
LTC6930CDCB-8.00-TRPBF	Linear	获取价格	32.768kHz to 8.192MHz Precision μPower Oscill

与LTC693相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

53
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

42
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

70
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

66

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC693

LTC693 数据手册

与LTC693相关器件

与LTC693相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC693

LTC693 数据手册

与LTC693相关器件

与LTC693相关文章

您还可以找

您在本页遇到什么问题？