ASM805LCPA PULSECORE [PulseCore Semiconductor], ASM805LCPA Datasheet
ASM805LCPA
Related parts for ASM805LCPA
ASM805LCPA Summary of contents
Page 1
April 2008 rev 1.7 µP Power Supply Supervisor With Battery Backup Switch General Description The ASM690A / ASM692A / ASM802L / ASM802M / ASM805L offers complete single chip solutions for power supply monitoring and control battery functions in microprocessor systems. ...
Page 2
April 2008 rev 1.7 Pin Configuration Pin Description Pin Number ASM690A/ Name ASM692A ASM805L ASM802L/ ASM802M OUT GND 4 4 PFI 5 5 PFO 6 6 WDI 7 - RESET - 7 ...
Page 3
April 2008 rev 1.7 Detailed Description It is important to initialize a microprocessor to a known state in response to specific events that could create code execution errors and “lock-up”. The reset output of these supervisory circuits send a reset ...
Page 4
April 2008 rev 1.7 Watchdog Input As discussed in the Reset section, the Watchdog input is used to monitor microprocessor activity. It can be used to insure that the microprocessor continually responsive state by requiring that the ...
Page 5
April 2008 rev 1.7 Table 2: Maximum Battery Voltages Part Number MAXIMUM Battery Voltage (V) ASM690A 4.80 ASM802L 4.80 ASM805L 4.80 ASM692A 4.55 ASM802M 4.55 Although most batteries that meet the requirements of Table2 are acceptable, lithium batteries are very ...
Page 6
April 2008 rev 1.7 Power-Fail Comparator The Power Fail feature is an independent voltage monitoring function that can be used for any number of monitoring activities. The PFI function can provide an early sensing of power supply failure by sensing ...
Page 7
April 2008 rev 1.7 will be at logic “0”. As the negative voltage declines, the voltage at the PFI pin will rise until it exceeds 1.25V and the PFO pin will go to logic “1”. µP Power Supply Supervisor With ...
Page 8
April 2008 rev 1.7 Absolute Maximum Ratings Parameter Pin Terminal Voltage with Respect to Ground BATT 1 All other inputs Input Current at VCC Input Current at V BATT Input Current at GND Output Current V OUT ...
Page 9
April 2008 rev 1.7 Electrical Characteristics Unless other wise noted 4.75V to 5.5V for the ASM690A / ASM802L / ASM805L and V CC ASM692A / ASM802M;V = 2.8V; and T BATT SYMBOL Parameter Voltage CC ...
Page 10
April 2008 rev 1.7 Parameter SYMBOL ASM69_A, ASM805L, V PFI Input Threshold ASM802_C/E, V PFI Input Current PFO Output I SOURCE Voltage I SINK Notes 0V, the other must be greater than 2.0V. CC ...
Page 11
April 2008 rev 1.7 Package Dimensions µP Power Supply Supervisor With Battery Backup Switch Notice: The information in this document is subject to change without notice. 8-lead PDIP Package ASM690A/692A ASM802L/802M ASM805L ...
Page 12
April 2008 rev 1.7 µP Power Supply Supervisor With Battery Backup Switch Notice: The information in this document is subject to change without notice. 8-lead (150-mil) SOIC Package ASM690A/692A ASM802L/802M ASM805L ...
Page 13
... DIP 0 to +70 8-SO -40 to +85 8-Plastic DIP -40 to +85 8- +70 8-Plastic DIP 0 to +70 8-SO -40 to +85 8-Plastic DIP -40 to +85 8-SO ASM805L Package Marking ASM690ACPA ASM690ACSA ASM690AEPA ASM690AESA ASM692ACPA ASM692ACSA ASM692AEPA ASM692AESA ASM802LCPA ASM802LCSA ASM802LEPA ASM802LESA ASM802MCPA ASM802MCSA ASM802MEPA ASM802MESA ASM805LCPA ASM805LCSA ASM805LEPA ASM805LESA ...
Page 14
... DIP 0 to +70 8-SO -40 to +85 8-Plastic DIP -40 to +85 8- +70 8-Plastic DIP 0 to +70 8-SO -40 to +85 8-Plastic DIP -40 to +85 8-SO ASM805L Package Marking ASM690ACPAF ASM690ACSAF ASM690AEPAF ASM690AESAF ASM692ACPAF ASM692ACSAF ASM692AEPAF ASM692AESAF ASM802LCPAF ASM802LCSAF ASM802LEPAF ASM802LESAF ASM802MCPAF ASM802MCSAF ASM802MEPAF ASM802MESAF ASM805LCPAF ASM805LCSAF ASM805LEPAF ASM805LESAF ...
Page 15
April 2008 rev 1.7 PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com © Copyright 2006 PulseCore Semiconductor Corporation. All rights reserved. Our logo and name are trademarks or registered trademarks of ...