New Product Update: Shanghai Belling’s IGBT pre-driver chip for automotive applications, the SAQ3100, used for engine ignition, has begun mass delivery.
Focusing on breakthroughs in core technologies for automotive electronics. ! Shanghai Belling has begun mass delivery of automotive-grade engine ignition systems. IGBT Dedicated gate driver chip SAQ3100, Another key chip is added to further ensure the safe and stable operation of gasoline-powered engine systems. !
Overview:
This chip is specifically designed for engine ignition. IGBT Driving scenario-specific development with significant core advantages. : Not only can it be precisely implemented, but... IGBT On-off control, coupled with core functions such as precise regulation of coil current and suppression of spark events, provides reliable chip-level support for gasoline engine powertrains. Compared to conventional discrete drive solutions, this approach offers advantages such as a smaller footprint and integrated protection features.
Figure 1 Ignition IGBT Comparison of Discrete and Integrated Drive Solutions
As the “core control hub” of the engine ignition system ,SAQ3100 The control principle is: When the input signal is high, the chip immediately activates the output driver. IGBT, Synchronize the coil charging process; via RA The programmable current design of the pins allows for flexible adjustment of the input pin current. (IIN), Precisely adapts to the needs of different scenarios, enabling fine-grained control over the charging process.
To ensure stable operation in complex in-vehicle environments, SAQ3100 Built-in multi-layered protection and optimized design:
Input peak filtering
Built-in input spike filter that precisely filters duration. <13 A microsecond-level interference signal effectively avoids the risk of false triggering and significantly enhances signal transmission stability.
Programmable dwell time control
Integrates a maximum dwell-time timer; if the duration of the input signal exceeds the set threshold, it will automatically shut down. IGBT; The duration of stay can be determined by Central Sterile Supply Department The externally connected capacitor on the pin allows for flexible adjustment, perfectly matching the ignition system requirements of different vehicle models.
Soft shutdown with spark suppression
When the timing exceeds the maximum dwell time, the chip automatically enters... IGBT By gradually reducing the gate voltage, the collector current is smoothly decreased, enabling the coil to discharge steadily and effectively suppressing spark events at the source. During this process, changes in the input signal will be temporarily ignored to ensure that the soft-shutdown procedure is completed smoothly and reliably.
Collector Current Limitation
During charging, by ignition. IGBT The emitter's inductive resistor collects the signal, then... VSENSE After the pin is inserted into the chip, it can be precisely restricted. IGBT Collector current (Ic), Further strengthen the safety defenses of the ignition system.
Important parameters
·Automotive-grade standard: AEC-Q100, Grade-0
·Ambient temperature: -40 Celsius ~150 Celsius , Suitable for the high-temperature and harsh environment of aircraft cabins.
·Input voltage: 4–26 VDC
·Output voltage: 6.5VDC
· ESD Ability: 2kV
·Package type: SOP8
Typical applications
Combined with functional characteristics, SAQ3100 Typical application scenarios are wide-ranging, covering: ignition in conventional gasoline engines for automobiles. IGBT Pre-drive, range-extending engine ignition IGBT Pre-drive, motorcycle engine ignition IGBT Pre-drive, gasoline generator ignition IGBT Pre-drive, etc. The typical application circuit is as follows:
Figure 2 SAQ3100 Typical Application Circuit
It’s worth noting that, relying on the already mass-sold... BLG3040、BLQ3040A Wait for the engine to ignite. IGBT As part of its product series, Shanghai Belling has developed a comprehensive product portfolio tailored for automotive engine ignition applications, offering customers a “one-stop” selection service that significantly enhances their efficiency and convenience.
(Source: Shanghai Belling Co., Ltd. If there is any infringement on the official website, please contact us for removal.
Hot News
How to Use a Multiphase Boost Converter
When the required system voltage exceeds the available supply voltage, a boost converter is typically an ideal solution. However, conventional standard boost topologies are not the only option. In certain application scenarios, phase-shifted multiphase boost converters can deliver superior performance: these converters achieve higher efficiency under heavy-load conditions while significantly reducing the required capacitance values for both the input and output stages.