H6006
H6006 is Failsafe Watchdog manufactured by EM Microelectronic - MARIN SA.
- Part of the H6006_EMMicroelectronic comparator family.
- Part of the H6006_EMMicroelectronic comparator family.
Description
The H6006 is a monolithic low power CMOS device bining a programmable digital timer and a series of voltage parators on the same chip. The device is specially convenient for Watch-Dog functions such as microprocessor and supply voltage monitoring. The watchdog part is designed to be used in all applications where it is important that after the occurrence of a malfunction the microprocessor system is stopped to avoid further damage. The timeout warning signal ( TO ) can be used to try to reactivate the system before halting it. The voltage monitoring part provides double security by bining both unregulated voltage and regulated voltage monitoring simultaneously. The H6006 initializes the poweron reset after VIN reached VSH and VDD raises above 3.5 V. If VIN drops below VSL, the H6006 gives an advanced warning signal for register saving and if the voltage drops further below VRL, RES goes active. The H6006 functions at any supply voltage down to 1.5 V and is therefore particularly suited for start-up and shut-down control of microprocessor systems
Features
Failsafe watchdog function: timeout warning after 1st timeout period, reset after 2nd timeout period, reset remains active to avoid further failures Standard timeout period and power-on reset time (10 ms), externally programmable if required VIN monitoring with 3 standard or programmable trigger voltages for: power-on reset initialization, advanced power-fail warning ( SAVE ), reset at power-down ( RES ) VDD monitoring: power-on reset initialization enabled only if VDD ≥ 3.5 V Internal voltage reference Works down to 1.5 V supply voltage Push-pull or Open drain outputs Low current consumption Available for normal and extended temperature range SO8 package
Applications
Microprocessor and microcontroller systems Point of sales equipment Tele products Automotive subsystems
Typical Operating Configuration
Pin Assignment
Voltage Regulator
5V
SO8
VIN VIN VDD TCL TO SAVE RES...