Not only MCU power consumption, but power supply IC power consumption is indispensable to efforts aiming to reduce ECU standby current.

The S-19514/5 and S-19518 Series have the industry’s lowest self current consumption of 3.0μA typ. without a trade-off in transient response.

By using the enable pin* to set the entire IC to standby state, it is possible to control the supply of power to the MCU and also reduce standby current.　 *The S-19518 Series only

Automotive devices need to be safe and require WDTs capable of reliably detecting MCU faults.

 Equipped with window mode

This mode is able to detect not only long-period absence of input signals from an MCU but also short-period repeated signal input (double pulse) as faults.

≫Description of window mode advantages

 Equipped with autonomous watchdog operation function

The watchdog function is automatically turned on and off depending on load current.
This prevents the WDT from diagnosing lack of signal input from an MCU in sleep mode as a fault.

Incorporating the LDO regulator, reset and WDT functions into one chip reduces the number of components and saves space.

The both compact and high-heat dissipating TO-252-9S package resolves the heat problem arising from the dense assembly of components in a small footprint.

In a 6.5mm square size package and with an allowable power dissipation of 5.21W, it excels at the pin compatibility that ABLIC is known for.
We also offer a lineup of compact HSOP-8A packages (6.0 x 5.02 x t1.68mm).

A simple circuit configuration that saves space and reduces the total number of components.