鈥?/div>
Set-top boxes
Cellular phones
PDAs
Energy management systems
Embedded control systems
Printers
Single board computers
General Description
The ASM1812 is a voltage supervisory device with low-power,
5V 碌P Reset, active HIGH, Push-Pull output. Maximum supply
current over temperature is a low 20碌A(chǔ).
The ASM1812 issues an active HIGH reset signal whenever
the monitored supply is out of tolerance. A precision reference
and comparator circuit monitor power supply (V
CC
) level.
Tolerance level options are 5%, 10% and 15%. When an out-of-
tolerance condition is detected, an internal power-fail signal is
generated which forces an active HIGH reset signal. After V
CC
returns to an in-tolerance condition, the reset signal remains
active for 150ms to allow the power supply and system
microprocessor to stabilize.
The ASM1812 is designed with a push-pull output stage and
operates over the extended industrial temperature range.
Devices are available in TO-92 and compact surface mount
SOT-23 packages.
Other low power products in this family include the ASM1810/
11/15/16/17, ASM1233D and ASM1233M.
Typical Operating Circuit
V
CC
ASM1812
Microprocessor
RESET
RESET
GND
Key Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low Supply Current
鈥?0 碌A(chǔ) maximum (5.5 V)
Automatically restarts a microprocessor after power failure
150ms reset delay after V
CC
returns to an in-tolerance con-
dition
Active HIGH power-up reset
Precision temperature-compensated voltage reference and
comparator
Eliminates external components
TO-92 and compact surface mount SOT-23 package
Push-Pull output for minimum current drain
Operating temperature -40擄C to +85擄C
Reference
Supply
Tolerance
Bias
Block Diagram
V
CC
2
ASM1812
+
Delay
150ms
Typical
1
-
RESET
3
GND
Alliance Semiconductor
2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com
Notice: The information in this document is subject to change without notice
ASM1812-5/T相關(guān)型號(hào)PDF文件下載
-
型號(hào)
版本
描述
廠商
下載
-
英文版
10W Ultraminiature Medical Grade Switching Power Supplies
ASTRODYNE ...
-
英文版
15W Ultraminiature Medical Grade Switching Power Supplies
ASTRODYNE ...
-
英文版
SIMISTOR⑩ TEMPERATURE SENSOR ULTRA-LOW-POWER SILICON THERMI...
ETC [ETC]
-
英文版
150W 2” x 4” Medical Grade Open Frame Switching Power Supp...
ASTRODYNE ...
-
英文版
uP Supervisory Circuit
ALSC
-
英文版
uP Supervisory Circuit
ALSC [Alli...
-
英文版
μP Supervisory Circuit
ALLIANCE
-
英文版
Low Power, 5V uP Reset Active LOW, Push-Pull Output
ALSC
-
英文版
Low Power, 5V uP Reset Active LOW, Push-Pull Output
ALSC [Alli...
-
英文版
Low Power 5V uP Reset Active LOW, Open - Drain Output
ALSC [Alli...
-
英文版
Low Power 5V uP Reset Active HIGH, Push-Pull Output
ALSC
-
英文版
Low Power 5V uP Reset Active HIGH, Push-Pull Output
ALSC [Alli...
-
英文版
Low Power, 3.3V/3.0V uP Reset Active LOW, Push-Pull Output
ALSC
-
英文版
Low Power, 3.3V/3.0V uP Reset Active LOW, Push-Pull Output
ALSC [Alli...
-
英文版
Low Power 3.3V/3.0V uP Reset, Active LOW, Open-Drain Output
ALSC
-
英文版
Low Power 3.3V/3.0V uP Reset, Active LOW, Open-Drain Output
ALSC [Alli...
-
英文版
Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ALSC
-
英文版
Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ALSC [Alli...
-
英文版
3.3V UP Power Supply Monitor and Reset Circuit
ALSC
-
英文版
3.3V UP Power Supply Monitor and Reset Circuit
ALSC [Alli...
1
2
3
4
5
6
7
8
9
