參數(shù)資料
型號(hào)： LTC1985ES5-1.8
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： Micropower Precision Triple Supply Monitor with Push-Pull Reset Output in a 5-Lead SOT-23 Package
中文描述： 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： PLASTIC, SOT-23, 5 PIN
文件頁數(shù)： 1/8頁
文件大?。?/td> 135K
代理商： LTC1985ES5-1.8
1
LTC1985-1.8
Micropower Precision
Triple Supply Monitor
with Push-Pull Reset Output
in a 5-Lead SOT-23 Package
March 2000
I
Monitors Three Inputs Simultaneously:
3V, 1.8V and Adjustable
I
±
1.5% Threshold Accuracy Over Temperature
I
Very Low Supply Current: 10
μ
A Typ
I
200ms Reset Time Delay
I
Power Supply Glitch Immunity
I
Guaranteed RESET for V
CC3
≥
1V or V
CC18
≥
1V
I
3V Active-Low Push-Pull Reset Output
I
5-Lead SOT-23 Package
The LTC
1985-1.8 is a triple supply monitor intended for
systems with multiple supply voltages. The reset output
remains low until all three supplies have been in compli-
ance for 200ms. Tight 1.5% accuracy specifications and
glitch immunity ensure reliable reset operation without
false triggering.
The RST output is guaranteed to be in the correct state for
V
CC18
or V
CC3
down to 1V. The LTC1985 may also be
configured to monitor any one or two V
CC
inputs instead
of three, depending on system requirements.
Very low (10
μ
A typical) supply current makes the LTC1985
ideal for power conscious systems.
The LTC1985 is available in a 5-lead SOT-23 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Desktop Computers
I
Notebook Computers
I
Intelligent Instruments
I
Portable Battery-Powered Equipment
I
Network Servers
Final Electrical Specifications
DESCRIPTIOU
FEATURES
APPLICATIU
TYPICAL APPLICATIO
U
V
CC3
V
CC18
V
CCA
RST
LTC1985-1.8
GND
1985-1.8 TA01
3V
1.8V
2.5V
0.1
μ
F
5
1
2
R1
130k
1%
R2
100k
1%
4
3
DC/DC
CONVERTER
SYSTEM
LOGIC
0.1
μ
F
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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