Link has been copied to clipboardBattery Disconnect & Power Distribution - Passenger Car
Efficient power distribution modules and dependable disconnect switches improve Li-ion battery management in electric vehicles. This block diagram highlights components Littelfuse can supply for commercial and passenger EVs. Our solutions include capacitors, contactors, and dc disconnect switches. We also make high-voltage fuses specifically engineered to provide overcurrent protection in EVs.
Block Diagram
| Technology: | |
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| Product Series: | 823A |
| Features: | AEC-Q200-qualified, high I2t, rated for 1000 Vdc with Interrupting rating of 100 A, compact body size of 5x20 mm, operating temperature from -40 °C to 125 °C, Pb-free, RoHS compliant, and Halogen-free |
| Benefits: | Avoid nuisance opening due to high inrush and surge current inherent in the system, suitable for harsh automotive environments, high-voltage protection while saving PC board space |
| Technology: | |
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| Product Series: | CH1B05xP |
| Features: | Very fast overcurrent detection, triggering, and interruption (cut-off time less than 1 ms), which significantly reduces peak current, additional input for activation of trigger using external signal, variants with accurate current measurement available |
| Benefits: | Fast and reliable circuit protection solution, customizable trigger labels, active protection solution, low-power consumption, compact lightweight design |
| Technology: | |
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| Product Series: | DCNHR |
| Features: | Wide amperage rating 30 A to 100 A, gas-filled contact chamber and magnetic blowouts for arc suppression, available direct switched auxiliary circuit for status indication |
| Benefits: | Allows a low-voltage signal to switch the contacts for a high-voltage signal |
| Technology: | |
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| Product Series: | DCNHR |
| Features: | Wide amperage rating 30 A to 100 A, gas-filled contact chamber and magnetic blowouts for arc suppression, available direct switched auxiliary circuit for status indication |
| Benefits: | Allows a low-voltage signal to switch the contacts for a high-voltage signal |
| Technology: | |
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| Product Series: | 10EV, 20EV, 30EV1K, 25EV1K, 828, 526 |
| Features: | High-voltage, ceramic body ensures compatibility with high-temperature environment |
| Benefits: | Provides safety protection in high-voltage environments, full-range fuse, can protect the entire pack’s voltage and short-circuit current |
| Technology: | |
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| Product Series: | DCNHR |
| Features: | Wide amperage rating, gas-filled contact chamber and magnetic blowouts for arc suppression, integrated coil economizer included in many models, available direct switched auxiliary circuit for status indication |
| Benefits: | Allows a low-voltage signal to switch the contacts for a high-voltage signal |
| Technology: | |
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| Product Series: | DCNHR |
| Features: | Wide amperage rating, gas-filled contact chamber and magnetic blowouts for arc suppression, integrated coil economizer included in many models, available direct switched auxiliary circuit for status indication |
| Benefits: | Allows a low-voltage signal to switch the contacts for a high-voltage signal |
| Technology: | |
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| Product Series: | Low Power SCR up to 1200V |
| Features: | Discrete Thyristor - High-temperature Thyristor with low gate current, available in a TO-220AB and surface mount TO-263 form factors, AEC-Q101-qualified. IGBT - Automotive-qualified IGBT, higher breakdown voltage BVCES (1300 V), wider range of currents IC (5 A to 85 A at 110 °C), surface-mount discrete packages include TO-263HV, TO-268HV, and the through-hole TO-247 |
| Benefits: | Discrete Thyristor - High-surge capability, offers low-gate current trigger levels of 15 mA or 40 mA at approximately 1.5 V IGBT - Tailored for 800 V BEV electric vehicles, optimized for low conduction losses, short-circuit rated, HV SMD packages to enhance clearance and creepage distances |
| Technology: | |
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| Product Series: | SSW115S |
| Features: | Products suitable for automotive applications, designed for ASIL-related applications |
| Benefits: | Surface-mount terminations, IP67 |