Table of Contents
ICs ideal for Headlamps & Rear Lamps
Overview
Headlamps continue to evolve from halogen lamps to HID and LED. In addition to their basic performance which improves visibility at night and in bad weather, headlamps also play an important role in ADAS. Examples of ADAS include, an Auto Leveling System that adjusts the optical axis vertically according to the vehicle's front/rear tilt, an AFS (Adaptive Front Lighting System) that automatically moves the optical axis left or right according to the steering wheel angle and the vehicle speed, and an ADB (Adaptive Driving Beam) that uses cameras to control the high beam by recognizing oncoming vehicles and vehicles driving in front. Rear Lamps are also being switched from bulbs to LEDs which are more advantageous.
ABLIC offers ICs ideal for Headlamps and Rear Lamps, which continue to evolve. ABLIC offers a comprehensive range of products: such as LDOs with built-in watchdog timers for monitoring MCUs, battery monitoring ICs that monitor 12V auxiliary batteries for abnormal voltages, Zero Crossing Latch Hall effect ICs which operate ideally in BLDC motors for auto-leveling and cooling fans.
ICs ideal for Headlamps & Rear Lamps
Block Circuit
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*VD: Voltage detector (Reset IC) *LDO: Low-dropout regulator *WDT: Watchdog timer
ICs ideal for Headlamps & Rear Lamps
ICs ideal for Headlamps & Rear Lamps
| Product | Recommended product | Applications and Features |
|---|---|---|
| Step-up Controller (Switching regulator) | S-19990 | Low voltage operation (from 3.0V). Low noise. 60μA quiescent current. The industry's smallest package. |
| LDO Regulator (Linear Regulator) | S-19212 | Powers the sensor. The output voltage can be set between 2.5 to 16V. |
| LDO Regulator (Linear Regulator) | S-19213 | Powers the cooling fun. The output voltage can be set between 1.8 to 30V with the use of an external resistor. |
| Watchdog Timer | S-1951x | With reset and LDO regulator functions. Current consumption of 3.0µA. |
| Battery Monitoring IC (Voltage detector) | S-19117/9 | With supply voltage divided output. Built-in SENSE Pin reverse connection protection circuit. Current consumption of 0.75µA |
| Hall effect IC (Magnetic sensor IC) | S-57TZ S | Zero Crossing Latch 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-93CxxC H (3-wire) | Serial EEPROM. Built-in data protection functions. 105°C max. operation. |
| EEPROM | S-24CxxC H (2-wire) | |
| EEPROM | S-25CxxxA H (SPI) |
Features
Step-up Controller S-19990 series
Low voltage operation
Low noise
Low current consumption
Contributes to improved ECU performance
The S-19990 Series is the industry's lowest operation voltage of 3.0V for a 36V operation step-up switching regulator controller. It also comes with a built-in spread spectrum clock generation circuit to reduce EMI in the system.
≫Learning more about the S-19990
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