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参数资料
| 型号： | LTC693CN#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP16 |
| 封装： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件页数： | 1/20页 |
| 文件大小： | 244K |
| 代理商： | LTC693CN#TRPBF |
LTC692/LTC693
1
0692fb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Microprocessor
Supervisory Circuits
n
Critical μP Power Monitoring
n
Intelligent Instruments
n
Battery-Powered Computers and Controllers
n
Automotive Systems
RESET Output Voltage vs
Supply Voltage
n
Guaranteed Reset Assertion at VCC = 1V
n
1.5mA Maximum Supply Current
n
Fast (35ns Maximum) Onboard Gating of RAM Chip
Enable Signals
n
4.40V Precision Voltage Monitor
n
Power OK/Reset Time Delay: 200ms or Adjustable
n
Minimum External Component Count
n
1μA Maximum Standby Current
n
Voltage Monitor for Power-Fail or Low Battery
Warning
n
Thermal Limiting
n
Performance Specied Over Temperature
n
Superior Upgrade for MAX690 Family
n
SO8 and SO16 Packaging
The LTC
692/LTC693 provide complete power supply
monitoring and battery control functions for microproces-
sor reset, battery backup, CMOS RAM write protection,
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, the reset outputs are forced to active states and the
chip enable output unconditionally write-protects external
memory. In addition, the RESET output is guaranteed to
remain logic low even with VCC as low as 1V.
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,
auxiliary power, connected to the battery input pin, powers
the RAMs in standby through an efcient PMOS switch.
For an early warning of impending power failure, the
LTC692/LTC693 provide an internal comparator with a
user-dened 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
timeout period.
ADJ
VIN
VOUT
10μF
VIN ≥ 7.5V
5V
100μF
0.1μF
μP NMI
μP
POWER
POWER TO
CMOS RAM
I/O LINE
μP RESET
μP
SYSTEM
0.1μF
3V
51k
10k
692_3 TA01
LT1086-5
MICROPROCESSOR RESET, BATTERY BACKUP, POWER FAILURE
WARNING AND WATCHDOG TIMING ARE ALL IN A SINGLE CHIP
FOR MICROPROCESSOR SYSTEMS
GND
0.1μF
100Ω
+
LTC692
LTC693
VBATT
PFI
WDI
RESET
PFO
VOUT
VCC
SUPPLY VOLTAGE (V)
0
RESET
OUTPUT
VOLTAGE
(V)
3
4
5
4
2
1
0
1
2
3
5
TA = 25°C
EXTERNAL PULL-UP = 10μA
VBATT = 0V
692_3 TA02
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners..
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC693CS | 制造商:Linear Technology 功能描述: |
| LTC693CS-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Microprocessor Supervisory Circuits |
| LTC693CS-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Microprocessor Supervisory Circuits |
| LTC693CSW | 功能描述:IC MPU SUPERVISRY CIRCUIT 16SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 其它有关文件:STM6717 View All Specifications 标准包装:1 系列:- 类型:多压监控器 监视电压数目:2 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 600 ms 电压 - 阀值:1.11V，3.075V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:Digi-Reel® 产品目录页面:1194 (CN2011-ZH PDF) 其它名称:497-7019-6 |
| LTC693CSW#PBF | 功能描述:IC MPU SUPERVISRY CIRCUIT 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 其它有关文件:STM6717 View All Specifications 标准包装:1 系列:- 类型:多压监控器 监视电压数目:2 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 600 ms 电压 - 阀值:1.11V，3.075V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:Digi-Reel® 产品目录页面:1194 (CN2011-ZH PDF) 其它名称:497-7019-6 |
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