參數(shù)資料
型號： CAT1026
英文描述： Dual Voltage Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Reset Active High & Low. Auxiliary Voltage Monitor
中文描述： 雙電壓監(jiān)控電路與I2C串行2K的CMOS EEPROM中。復(fù)位高有效
文件頁數(shù)： 3/17頁
文件大?。?/td> 114K
代理商： CAT1026
3
Preliminary Information
CAT1026, CAT1027
Doc No. 3010, Rev. G
PIN DESCRIPTION
RESET/
(RESET CAT1026 Only)
These are open drain pins and
RESET
can be used as a
manual reset trigger input. By forcing a reset condition on
the pin the device will initiate and maintain a reset condition.
The RESET pin must be connected through a pull-down
resistor, and the
RESET
pin must be connected through a
pull-up resistor.
RESET
:
RESET OUTPUTS
SDA:
The bidirectional serial data/address pin is used to transfer
all data into and out of the device. The SDA pin is an open
drain output and can be wire-ORed with other open drain
or open collector outputs.
SERIAL DATA ADDRESS
SCL:
Serial clock input.
SERIAL CLOCK
V
SENSE
:
AUXILIARY VOLTAGE MONITOR INPUT
The V
SENSE
input is a second voltage monitor which
is compared against CAT1026 and CAT1027 internal
reference voltage of 1.25V typically. Whenever the
input voltage is lower than 1.25V, the open drain
VLOW output will be driven low. An external resistor
divider is used to set the voltage level to be sensed.
Connect V
SENSE
to V
CC
if unused.
V
LOW
:
AUXILIARY VOLTAGE MONITOR OUTPUT
This open drain output goes low when V
SENSE
is less
than 1.25V and goes high when V
SENSE
exceeds the
reference voltage.
WDI (CAT1027 Only):
WATCHDOG TIMER INTERRUPT
Watchdog Timer Interrupt Input is used to reset the
watchdog timer. If a transition from high to low or low to
high does not occur every 1.6 seconds, the RESET
outputs will be driven active.
CAT10XX FAMILY OVERVIEW
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For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163
data sheets.
PIN FUNCTIONS
Pin Name
RESET
Function
Active Low Reset Input/Output
V
SS
SDA
SCL
Ground
Serial Data/Address
Clock Input
RESET
Active High Reset Output (CAT1026 only)
V
CC
V
SENSE
V
LOW
WDI
Power Supply
Auxiliary Voltage Monitor Input
Auxiliary Voltage Monitor Output
Watchdog Timer Interrupt (CAT1027 only)
OPERATING TEMPERATURE RANGE
Industrial
Extended
-40
C to 85
C
-40
C to 125
C
相關(guān)PDF資料
PDF描述
CAT1022 Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Manual Reset and Watchdog Timer Monitors SDA
CAT1023 Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Manual Reset and Watchdog Timer Monitors WDI pin. Active High & Low Reset
CAT1024 Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Manual Reset
CAT1025 Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Manual Reset. WP Pin. Active High & Low Reset
CAT1027 Dual Voltage Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Auxiliary Voltage Monitor. Watchdog Monitors WDI Pin
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CAT1026LI25 功能描述:監(jiān)控電路 2K bit 2.5V Ind Temp RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT1026LI-25-G 功能描述:監(jiān)控電路 CPU w/2K RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT1026LI28 功能描述:監(jiān)控電路 2K bit 2.8V Ind Temp RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT1026LI-28-G 功能描述:監(jiān)控電路 CPU w/2K RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT1026LI30 功能描述:監(jiān)控電路 2K bit 3V Ind Temp RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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