Automotive, 125℃ operation, 36V input, 250mA, Buit-in
Window Watchdog Timer Voltage Regulator with Reset Function

S-19514/5, S-19518 Series

The industry's No.1 low current consumption  Buil-in Watchdog Timer Voltage Regulator with Reset Function S-19514, S-19515, S-19518 Series

  Automotive ECU Requirements


  •  Reduce
    standby current

    for all parts and the entire ECU

  •  Detect MCU faults
    with high accuracy

    to ensure device safety

  •  Simplify
    peripheral circuits

    to reduce footprint


 A watchdog timer
resolves these issues


Our watchdog timer with integrated
power supply has the industry's
No.1* low
current consumption

and enables
high-accuracy
detection in a simple
circuit configuration.

S-19514/5 Datasheet

S-19518    Datasheet

A single chip that powers and monitors voltage and operation of an MCU.


low current consumption with fast transient response

[the industry’s No. 1*] lowest current consumption with fast transient response

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

High-accuracy detection of MCU faults by [Time-out mode] and [autonomous watchdog operation function]

High-accuracy detection of MCU faults

High-accuracy detection of MCU faults

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.

Single chip with three functions saves space.The both compact and high-heat dissipating TO-252-9S package resolves the heat problem

Single chip with 3 functions saves space

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 6.25W, 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.

S-19514/5 Datasheet

S-19518    Datasheet

Application


 Constant-voltage power supply for automotive electric component,
 Monitoring of microcontroller

Automotive Watchdog timer Lineup


Features


Product name S-19514
S-19515
S-19518 S-19504
S-19505
  For automotive For automotive For automotive
Output current 250mA 250mA 250mA
Output voltage 3.3V , 5.0V 3.3V , 5.0V 3.3V , 5.0V
Output voltage
accuracy
±2.0% (Tj = −40°C to +150°C) ±2.0% (Tj = −40°C to +150°C) ±2.0% (Tj = −40°C to +150°C)
Current consumption
during operation
3.0 µA typ. 3.2 µA typ. 3.0 µA typ.
Current consumption
during standby
- 0.1μA -
Watchdog mode Window mode Window mode Time-out mode
Package HSOP-8A、TO-252-9S HSOP-8A、TO-252-9S HSOP-8A、TO-252-9S
Automotive quality PPAP, AEC-Q100 in process PPAP, AEC-Q100 in process PPAP, AEC-Q100 in process
Datasheet S-19514/5 Datasheet S-19518    Datasheet S-19504/5 Datasheet
Product name S-19514
S-19515
S-19518 S-19504
S-19505
  For automotive For automotive For automotive
Output current 250mA 250mA 250mA
Output voltage 4.0V , 5.0V 4.0V , 5.0V 4.0V , 5.0V
Output voltage accuracy ±2.0% (Tj = −40°C to +150°C) ±2.0% (Tj = −40°C to +150°C) ±2.0% (Tj = −40°C to +150°C)
Current consumption during operation 3.0 µA typ. 3.2 µA typ. 3.0 µA typ.
Current consumption during standby 0.1μA
Watchdog mode Window mode Window mode Time-out mode
Package HSOP-8A、TO-252-9S
Automotive quality PPAP, AEC-Q100 in process
S-19514/5 Datasheet

S-19518    Datasheet

S-19504/5 Datasheet

* Based on our research as of November 2019. 

≫The latest information

 

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optimal watchdog timer.

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Engineer supports
your selection of
optimal watchdog timer.

↓ Contact Us ↓

Technical Inquiry Form