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ASM805LCPA-T

Description
IC POWER SUPPLY MANAGEMENT CKT, Power Management Circuit
CategoryPower/power management    The power supply circuit   
File Size197KB,12 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Download Datasheet Parametric View All

ASM805LCPA-T Overview

IC POWER SUPPLY MANAGEMENT CKT, Power Management Circuit

ASM805LCPA-T Parametric

Parameter NameAttribute value
MakerON Semiconductor
package instruction,
Reach Compliance Codeunknown
ECCN codeEAR99
Analog Integrated Circuits - Other TypesPOWER SUPPLY MANAGEMENT CIRCUIT
ASM690A/692A,
ASM802L/802M, ASM805L
mP
Power Supply Supervisor
with Battery Backup Switch
Description
The ASM690A / ASM692A / ASM802L / ASM802M / ASM805L
offers complete single chip solutions for power supply monitoring and
control battery functions in microprocessor systems. Each device
implements four functions: Reset control, watchdog monitoring,
battery−backup switching and power failure monitoring. In addition to
microprocessor reset under power−up and power−down conditions,
these devices provide battery−backup switching to maintain control in
power loss and brown−out situations. Additional monitoring
capabilities can provide an early warning of unregulated power supply
loss before the voltage regulator drops out. The important features of
these four functions are:
1.6 second watchdog timer to keep microprocessor responsive
4.40 V or 4.65 V VCC threshold for microprocessor reset at
power−up and power−down
SPDT (Single−pole, Double−throw) PMOS switch connects backup
power to RAM if VCC fails
1.25 V threshold detector for power loss or general purpose voltage
monitoring
These features are pin−compatible with the industry standard
power−supply supervisors. Short−circuit and thermal protection have
also been added. The ASM690A / ASM802L / ASM805L generate a
reset pulse when the supply voltage drops below 4.65 V and the
ASM692A / ASM802M generate a reset below 4.40 V. The ASM802L
/ ASM802M have power−fail accuracy to
±2%.
The ASM805L is the
same as the ASM690A except that RESET is provided instead of
RESET.
Features
http://onsemi.com
PDIP−8
P SUFFIX
CASE 646AA
SOIC−8
S SUFFIX
CASE 751BD
PIN CONFIGURATIONS
V
OUT
V
CC
GND
PFI
1
1
ASM690A,
ASM692A,
ASM802L,
ASM802M
V
BATT
RESET
WDI
PFO
V
OUT
V
CC
GND
PFI
V
BATT
ASM805L
RESET
WDI
PFO
(Top Views)
Two Precision Supply−voltage Monitor Options
4.65 V (ASM690A / ASM802L / ASM805L)
4.40 V (ASM692A / ASM802M)
Battery−backup Power Switch On−chip
Watchdog Timer: 1.6 Second Timeout
Power Failure / Low Battery Detection
Short Circuit Protection and Thermal Limiting
Small 8−pin SO and 8−pin PDIP Packages
No External Components
Specified Over Full Temperature Range
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
Applications
Embedded Control Systems
Portable/Battery Operated Systems
Intelligent Instruments
Wireless Instruments
1
Wireless Communication Systems
PDAs and Hand−held Equipments
mP
/
mC
Power Supply Monitoring
Safety System
Publication Order Number:
ASM690A/D
©
Semiconductor Components Industries, LLC, 2011
August, 2011
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