ASM1233D-L

Features:

• Low Supply Current
• 15µA maximum (<=3.6V), 20µA maximum (5.5V)
• Automatically restarts a microprocessor after power failure
• 350ms reset delay after VCC returns to an in-tolerance condition
• Active LOW power-up reset, 5kΩ internal pull-up
• Precision temperature-compensated voltage reference and comparator
• Eliminates external components
• Low-cost SOT-223/SO-8/TO-92 packages
• Operating temperature: -40°C to +85°C





Application

• Set-top boxes
• Cellular phones
• PDAs
• Energy management systems
• Embedded control systems
• Printers
• Single board computers


Pinout

Specifications

Parameter	Min	Max	Unit
Voltage on VCC	-0.5	7	V
Voltage on RESET	-0.5	VCC + 0.5	V
Operating Temperature Range	-40	85	°C
Soldering Temperature (for 10 sec)		260	°C
Storage Temperature	-55	125	°C
ESD rating HBM MM		2 200	KV V
NOTE: These are stress ratings only and functional use is not implied. Exposure to absolute maximum ratings for prolonged periods of time may affect device reliability.

Description

The ASM1233D-L/1233D/1233M are voltage supervisors with low-power, 5/3.3V µP Reset, with an active LOW, open-drain output. Maximum supply current over temperature is 15µA for 3.3V devices and 20µA for 5V devices.
The ASM1233D-L/1233D/1233M generates an active LOW reset signal whenever the monitored supply is out of tolerance.
A precision reference and comparator circuit monitors power supply (VCC) level. The tolerance are 5%,10% and 15%. When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces an active LOW reset signal. After VCC returns to an in-tolerance condition, the reset signal remains active for 350ms to allow the power supply and system microprocessor to stabilize.
The ASM1233D-L/1233D/1233M is designed with an opendrain output stage and operates over the extended industrial temperature range. These devices are available in compact SOT-223, SO-8 and TO-92 packages.
Other low power products in this family include ASM1810/11/12/15/16/17.