Automotive electronic₹Ω₩s
Three electric systems for new ene©'↓rgy vehicles
Low power LDO chip applied∑ ®↓ to BMS system of new e ☆≥↕nergy vehicles. It is an ultra-low∞∞• static power, low dropout linea☆$r regulator manufactured by ♦∏ §CMOS process. The current c₽✘εonsumed by the regulator is©>>∞ about 0.7uA, and the power consump☆↔±tion after enabling shutdown is 0∏₽₽ .01uA (typical). Bu×φilt in enabling control, current l✘★imiting circuit and turn back sΩ≈σhort-circuit protection, and ha>δ✘s the function of enabling a≈↑φnd controlling the automatic discha↓♥ ™rge of output capaciγ™• tance.
Intelligent cabin ventilation and heatδ ™ing system
The three-phase motor driver applied ♣©©←to seat ventilation uses a senso≥rless sinusoidal driver to minimize vibα∞←'ration for various fan application☆↕×s. Sensorless control eliminatesεα the requirement for Hall s←σ↓ensors. A flexible clo₹<sed-loop speed control system is iπ★∑₹ntegrated in the integrated cirγ$cuit. EEPROM is used to customize t≠↕σhe general function of fan speed curv±<e according to specific •₹α&applications. This e→₩liminates the need for microproces↔π↕sor-based systems and min✘∞©₽imizes programming requirements.
Radar detector
It is a 1.4uA I☆★q, high precision, high PSRR, low dβσ♣♠ropout linear regula&→≤tor manufactured by CMOS process and ∏ε®applied to low-power LDO of automotive"π radar probe. Built in fixed voltage ∏'reference, temperature prote€→€ ction, current limitingλ© circuit, phase compensa★∑tion circuit and low internal resis↔↕tance MOSFET, to achieve ultra-lo&•w power consumption, high rippπλ<le suppression, low volta>↓ge differential performance₽ ←. There is no need to use bπ÷y pass capacitors in the per£iphery, which can save space.¥ The high-speed response charact∑±eristic can cope with the fluctuation ₩∞σ♥of load current, so it is espe§φ↔cially suitable for a★¶utomotive electronic products. ™✘ By controlling the CE pin on the chip★¶•←, the output can be turned o←♦÷ ff, and the power consumption&↔λ₽ after turning off can achieve 0 €←₽μ A。
BCM module drive
It is used on BCM (body control ↓φφler), with internal integratiγΩ÷on of 8-way half bridge, SPI bus λ☆♣control, maximum working v↕←oltage of 40V, rated outpu£§✘t current of 0.6A, a÷≠✔nd current limit of 1A. The ch£↑↓ip is required to have§&↔β the functions of cu&™→rrent limit, thermal shutdown, dea♥£γd protection, voltage clamping, ®∏>short circuit protection and PWM sp♣♦"✔eed regulation. The chip is use♥¶d to drive motor loads such as bod÷≥y rearview mirror adjustment anβ¥→✔d sun curtain adjustment. Applicable tβ"o 12V and 24V body systems. Used to dε"☆≤rive DC motor. It can£♣ drive 4 DC motors at th←Ωe same time or 6 DC motors in>φ× sequence. The integrated 24 λ★ >bit standard serial peripheral inte ±★rface (SPI) controls all outputs and &♦↑provides diagnostic inf£↑ ≠ormation: normal operation, on load €∑'in on state, overcurrent, temperature>σ"σ warning and overtempera®<∑ture.
Charging pile of new eφλnergy vehicles
High Performance Currδ←✔ent Mode PWM controller. Designed fo§÷πr cost-effective AC/DC co♠₽nverters. It can provide continuous oα≤¥utput power of up to 18W inφΩ a wide voltage rang✔→↑e of 85V-265V, and the peak output po≈¥wer can reach 24W. The starting c±ππircuit inside the IC is desig"↔↕←ned as a unique curr©¶←↔ent suction mode, which can us↑≈₽e the amplification of the ↔γpower switch itself to complete the st γ arting, significantly redu∞∑♥'cing the power consumption of the≤ starting resistance When the powe φ>r tube is cut off, the internal&♣¥λ circuit reversely biases the power t♥ §ube, directly using t&Ω☆he CB high voltage withstandβ>∞ characteristic of the bipolar ←✔ transistor, which greaα♦tly improves the voltage withstand abil↕£ ity of the power tube until the hig÷±'h voltage of 800V, which ensure☆←↔≤s the safety of the power tu♣✘®&be. The IC also prov₹¥ides a perfect anti overload δ→∏and anti saturation function, which can$₹ prevent overload, tran↓™≥✘sformer saturation, outpu♦Ω↔t short circuit and other←π✘ abnormal conditionsβ↕ in real time, and improve σ±the reliability of the power↔÷α← supply.
