DS1706:3.3V及5.0V MicroMonitor

The DS1705/DS1706 3.3- or 5.0-Volt MicroMonitor monitors three vital conditions for a microprocessor: power supply, software execution, and external override. A precision temperature compensated reference and comparator circuit monitor the status of VCC at the device and at an upstream point for maximum protection. When the sense input detects an out-of-tolerance condition a non-maskable interrupt is generated. As the voltage at the device degrades, an internal power fail signal is generated which forces the reset to an active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for a minimum of 130ms to allow the power supply and processor to stabilize. The second function the DS1705/DS1706 performs is pushbutton reset control. The DS1705/DS1706 debounces the pushbutton input and guarantees an active reset pulse width of 130ms minimum. The third function is a watchdog timer. The DS1705/DS1706 has an internal timer that forces the WDO signal to the active state if the strobe input is not driven low prior to time-out.

关键特性
  • Halts and restarts an out-of-control microprocessor
  • Holds microprocessor in check during power transients
  • Automatically restarts microprocessor after power failure
  • Monitors pushbutton for external override
  • Accurate 5%, 10% or 20% resets for 3.3V systems and 5% or 10% resets for 5.0V systems
  • Eliminates the need for discrete components
  • 3.3V 20% tolerance for use with 3.0V systems
  • Pin-compatible with the MAXIM MAX705/MAX706 in 8-pin DIP, 8-pin SO, and µSOP
  • 8-pin DIP, 8-pin SO and 8-pin µSOP packages
  • Industrial temperature range -40°C to +85°C
DS1705、DS1706:原理框图
DS1705、DS1706:原理框图
数据手册DataSheet
语言下载文件备注
英文DS1705-DS1706.pdfRev 3; 05/2010
关键参数
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
DS17053.3 to 5.5
  • Active Low
  • Push-Pull
85ms to 300msInput/Output (WDI/WDO)1s to 2s
  • Adjustable Reset Input
  • Manual Reset
  • Power Fail Comparator/Low Battery Detect
2.560
  • µMAX/8
  • PDIP(N)/8
  • SOIC(N)/8
$3.28 @1k
DS17063.3 to 5.5
  • Active Low
  • Push-Pull
60
  • µMAX/8
  • PDIP(N)/8
  • SOIC(N)/8
$1.77 @1k
DS1706L3.3 to 5.5
  • Active High
  • Push-Pull
60
  • µMAX/8
  • PDIP(N)/8
  • SOIC(N)/8
$1.77 @1k
DS1706P2.5 to 3.3
  • Active High
  • Push-Pull
50
  • µMAX/8
  • PDIP(N)/8
  • SOIC(N)/8
$3.90 @1k
DS1706R2.5 to 3.3
  • Active Low
  • Push-Pull
50
  • µMAX/8
  • PDIP(N)/8
  • SOIC(N)/8
$3.90 @1k
DS1706S2.5 to 3.3
  • Active Low
  • Push-Pull
50
  • µMAX/8
  • PDIP(N)/8
  • SOIC(N)/8
$3.89 @1k
DS1706T2.5 to 3.3
  • Active Low
  • Push-Pull
50
  • µMAX/8
  • PDIP(N)/8
  • SOIC(N)/8
$4.12 @1k
技术资料
质量和环境数据
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
DS1706EPA5V-10%监测精度停止供货DS1706EPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
DS1706EPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
DS1706ESA5V-10%监测精度停止供货DS1706ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706ESA+T&R5V-10%生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706ESA/T&R5V-10%停止供货DS1706ESA+T&RSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706EUA5V-10%监测精度停止供货DS1706EUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
DS1706EUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706EUA+T&R5V-10%生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706EUA/T&R5V-10%停止供货DS1706EUA+T&RµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
DS1706LEPA5V-5%监测精度停止供货DS1706LEPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
DS1706LEPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
DS1706LESA5V-5%监测精度停止供货DS1706LESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706LESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706LESA+T&R5V-5%生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706LESA/T&R5V-5%停止供货DS1706LESA+T&RSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706LEUA5V-5%监测精度停止供货DS1706LEUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
DS1706LEUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706LEUA+T&R5V-5%生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706LEUA/T&R5V-5%停止供货DS1706LEUA+T&RµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
DS1706PEPA3.3V-20%监测精度停止供货DS1706PEPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
DS1706PEPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
DS1706PESA3.3V-20%监测精度停止供货DS1706PESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706PESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706PESA+T&R3.3V-20%生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706PESA/T&R3.3V-20%停止供货DS1706PESA+T&RSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706PESA/T&R/停止供货SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706PEUA3.3V-20%监测精度停止供货DS1706PEUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
DS1706PEUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706PEUA+T&R3.3V-20%生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
DS1706PEUA/T&R3.3V-20%停止供货DS1706PEUA+T&RµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
DS1706REPA3.3V-20%监测精度停止供货DS1706REPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
DS1706REPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
DS1706RESA3.3V-20%监测精度停止供货DS1706RESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706RESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706RESA+T&R3.3V-20%生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706REUA3.3V-20%监测精度停止供货DS1706REUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
DS1706REUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706REUA+T&R3.3V-20%生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706REUA/T&R3.3V-20%停止供货DS1706REUA+T&RµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
DS1706SEPA3.3V-10%监测精度停止供货DS1706SEPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
DS1706SEPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
DS1706SESA3.3V-10%监测精度停止供货DS1706SESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706SESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706SESA+T&R3.3V-10%生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
DS1706SESA/T&R3.3V-10%停止供货DS1706SESA+T&RSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706SESA/T&R/C01停止供货SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
DS1706SEUA3.3V-10%监测精度停止供货DS1706SEUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
DS1706SEUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1706SEUA+T&R3.3V-10%生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
DS1705-DS1706.pdf DS1706
Adding Hysteresis to CPU Supervisor Voltage Sense Inputs Monitoring Upstream Voltage Supplies for Power-Fail Warnings DS1831E
DS1706.pdf DS1706
原理框图 DS1706