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參數資料
| 型號： | CAT869T |
| 英文描述： | 3-Pin Microprocessor Power Supply Supervisors |
| 中文描述： | 3引腳微處理器電源監控 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 542K |
| 代理商： | CAT869T |
1
2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 3026, Rev. B
CAT853, CAT863
CAT859, CAT869
3-Pin Microprocessor Power Supply
Supervisors
FEATURES
Precision monitoring of +3.3V (-5%, -10%), 5V
(-10% Power Supplies)
Active low reset output
Reset valid down to V
CC
= 1.0V
6
μ
A power supply current
Power supply transient immunity
Industrial temperature range: -40oC to +85oC
RoHS-compliant SOT-23 package
APPLICATIONS
Computers
Servers
Laptops
Cable modems
Wireless communications
Embedded control systems
White goods
Power meters
Intelligent instruments
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PDAs and handheld equipment
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DESCRIPTION
The CAT853, CAT863, CAT859, and CAT869 are
supervisory circuits that monitor power supplies in digital
systems.
These devices generate a reset signal, which is asserted
while the power supply voltage is below a preset threshold
level and for at least 140 ms after the power supply level
has risen above that level. Industry standard threshold
levels are offered to support +3.3V or 5.0V systems.
The CAT859 and CAT869 feature a RESET push-pull
output (active low) for the two pinout options.
The CAT853 and CAT863 feature an open drain RESET
output (active low). Both require a pull-up resistor on
the RESET output.
Fast transients on the power supply are ignored and
the output is guaranteed to be in the correct state at V
cc
levels as low as 1.0V.
PIN CONFIGURATION
THRESHOLD SUFFIX SELECTOR
Nominal Threshold
Voltage
Threshold Suf
fi
x
Designation
3.08V
2.93V
4.38V
T
S
M
For Ordering Information details, see page 8.
PIN DESCRIPTIONS
Name
RESET
Description
Active low reset. RESET is asserted if V
CC
falls below the reset threshold and remains low for at least
140ms after V
CC
rises above the reset threshold.
Ground
Power supply voltage that is monitored.
GND
V
CC
2
CAT853
CAT859
GND
RESET
V
CC
3-Lead SOT23
1
3
3-Lead SOT23
CAT863
CAT869
GND
RESET
V
CC
1
2
3
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相關代理商/技術參數 |
參數描述 |
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| CAT869TTBI-GT3 | 功能描述:監控電路 SUP PUSH-PULL ACT LOW RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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| CAT872-50ULGT3 | 功能描述:監控電路 RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| CAT874-80ULGT3 | 制造商:ON Semiconductor 功能描述:BATTERY SWITCH CONTROLLER - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL - BATTERY SWITCH CONTROLLER 制造商:ON Semiconductor 功能描述:ANALOG IC |
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