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参数资料
| 型号： | LSP2200CALM |
| 厂商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封装： | SOT-23, 3 PIN |
| 文件页数： | 1/5页 |
| 文件大小： | 111K |
| 代理商： | LSP2200CALM |
Liteon Semiconductor Corporation
LSP2200
3 PIN Microprocessor Reset Monitors
1/5
Rev1.1
PIN CONFIGURATION
(Top View)
Pin
Name
Function
1
GND
Ground reference
2
RESET
_____________
Active-low output. RESET
____________
remains low while VCC is below the reset threshold,
and for a reset timeout period after VCC rises above the reset threshold.
3
VCC
Supply voltage (typ.)
TYPICAL OPERATION CIRCUIT
GENERAL DESCRIPTION
The LSP2200 is a microprocessor supervisory circuits
used to monitor the power supplies in MPU and digital
systems. They provide excellent circuit reliability and
low cost by eliminating external components and
adjustments when used with +5V, +3.3V, +3.0V, or
+2.5V powered circuits
These curcuits perform a single function: they assert a
reset signal whenever the Vcc supply voltage declines
below a preset threshold, keeping it asserted for at
least 140ms after Vcc has risen above the reset
threshold. Reset thresholds suitable for operation whit
a variety of supply voltages are available. The
LSP2200 have push-pull outputs, an active-low
RESET
_____________
output. The reset comparator is designed to
ignore fast transients on Vcc, and the outputs are
guaranteed to be in the correct logic state for Vcc down
to 1V. Low supply current makes the LSP2200 ideal for
use in portable equipment. The LSP2200 is available in
SOT23-3L package.
FEATURES
Precision VCC Monitor for 2.5 V, 3.0V, 3.3 V, and
5.0 V Supplies
Fully Specified Over Temperature
Available in Three Output Configurations
Push-Pull RESET
_____________
Output
250ms Typical Power-On Reset Pulse Width
2A typical Supply Current
Guaranteed Reset Valid to Vcc=+1V
Power Supply Transient Immunity
No External Components
SOT23-3L Packages
APPLICATIONS
Computers
Controllers
Intelligent Instruments
Critical MPU and MPU Power Monitoring
Portable/Battery-Powered Equipment
Automotive
3
1
2
RESET
GND
VCC
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