Table of Contents
ICs ideal for Electric Power Steering Motors
Overview
Electric Power Steering (EPS) uses an electric motor to assist the operation of the steering wheel. Compared to the conventional hydraulic assist system, EPS improves fuel efficiency because it does not require an engine-powered oil pump. Additionally, EPS is indispensable for advanced driver assistance such as Autonomous and Lane Keeping Assist, which can be precisely controlled by an electric motor.
ABLIC offers ICs ideal for EPS motors that support "A" (Autonomous) in CASE. ABLIC offers a comprehensive range of products: such as ZCL™ Hall effect ICs which operate ideally in BLDC motors, high-accuracy Voltage Trackers for torque sensor power supplies, LDOs with built-in watchdog timers for monitoring MCUs, and battery monitoring ICs that monitor 12V auxiliary batteries for abnormal voltages.
ICs ideal for Electric Power Steering Motors
Block Circuit
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*VD: Voltage detector (Reset IC) *LDO: Low-dropout regulator *WDT: Watchdog timer
ICs ideal for Electric Power Steering Motors
ICs ideal for Electric Power Steering Motors
| Product | Recommended product | Applications and Features |
|---|---|---|
| DC-DC converter (Switching regulator) | S-19914/5 | 36V input, low noise, available in the industry's smallest package. Contributes to fewer and more compact external parts. |
| Watchdog Timer | S-1951x | With reset and LDO regulator functions. Current consumption of 3.0µA. |
| Window Voltage Detector | S-191A/B | 6V operation. Monitors undervoltage and overvoltage. Voltage detection response time of 10µs typ. With manual reset function (S-191A). |
| Battery Monitoring IC (Voltage detector) | S-19113 | Provides undervoltage monitoring. Built-in SENSE Pin reverse connection protection circuit. Current consumption of 0.6µA. |
| Voltage Tracker | S-19721 | The industry's lowest class offset voltage of ±4.5mV. 250mA output current. Built-in Anomaly Notification. |
| Voltage Tracker | S-19720 | The industry's lowest offset voltage of ±5mV. 50mA output current. Available in an ultra compact (2.46 x 1.96mm) package. Current consumption during power-off of 4µA. |
| LDO Regulator (Linear Regulator) | S-19222 | Power supply for sensors and microcontrollers (MCUs). High PSRR 75dB (at f = 1.0 kHz). Fast Transient Response. |
| Hall effect IC (Magnetic sensor IC) | S-57TZ S | ZCL™ Hall effect ICs are perfect for BLDC motor control, creating stable BLDC motor control over a wide temperature range. |
| Hall effect IC (Magnetic sensor IC) | S-57RB S | Bipolar Hall effect Latch ICs with a thin and small package. The thin package contributes to thinner BLDC motors. |
| EEPROM | S-25Axxx (SPI) | Serial EEPROM. Built-in data protection functions. |
| EEPROM | S-93Axx (3-wire) | |
| EEPROM | S-93Sxx (3-wire) |
Features
Window Voltage Detector S-191A/B series
Window detection
Fast Detection Response
Contributes to Building Greater Functional Safety of Automotive Devices
The window voltage detector capable of monitoring undervoltage and overvoltage, 6V input, voltage detection response time of 10µs typ. The S-191A Series has a manual reset function that enables the diagnosis of non-safe faults of the IC.
Voltage Tracker S-19721 series
Low offset voltage
Built-in Anomaly Notification
Improves Higher-accuracy Sensing and Safety Design
The voltage tracker with its offset voltage of ±4.5mV, 36V input, 250mA output current, and built-in Anomaly Notification. It can handle three types of abnormalities: overvoltage, overcurrent at the output pin, and heating of itself. It is possible to select the appropriate combination of outputs according to the specifications and applications.
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≫What is a Voltage Tracker?
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Voltage Tracker S-19720 series
Low offset voltage
Ultra-compact package
Low current consumption
Voltage Tracker that contributes to high-accuracy sensing
The industry's lowest offset voltage of ±5mV helps keep the power supply voltage of the off-board ratiometric sensor equal to the reference voltage (Vref) of the AD converter (ADC) handling ECU measurements, raising sensor reading accuracy. The voltage tracker with its 36V input and 50mA output current is housed in an HSNT-6(2025), the industry's smallest package. The S-19720 helps further reduce the footprint of automotive devices.
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≫What is a Voltage Tracker?
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LDO Regulator S-19222 series
High PSRR
Fast Transient Response
Provides stable power supplies thanks to the industry's highest PSRR and the industry's fastest transient response!
This LDO regulator offers a 36V input, 1.8 to 30V output, 300mA output, High PSRR 75dB (at f = 1.0 kHz) with Fast Transient Response. In addition, a wide range of packages allows customers to choose the right package for their application. Stabilized power ideal for automotive devices.
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EEPROM S-25Axxx / S-93Axx / S-93Sxx series
No.1 share in japanese automotive market
We offer a wide range of product lineups with high reliability, high performance, and high quality
ABLIC's automotive serial EEPROMs offer a wide range of product lineups that supports various interfaces, memory capacity, and packages.
Series name
Interface: SPI bus, 125℃ operation Memory capacity: 1K, 2K, 4K-bit
Interface: SPI bus, 125℃ operation Memory capacity: 8K, 16K, 32K-bit
Interface: SPI bus, 125℃ operation Memory capacity: 64K-bit
Interface: SPI bus, 125℃ operation Memory capacity: 128K-bit
Interface: SPI bus, 125℃ operation Memory capacity: 256K-bit
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