Onboard Battery Chargers - Truck & Bus Electric Powertrain

Onboard battery chargers convert alternating current from charging stations to direct current for electric passenger vehicle batteries. A block diagram highlights Littelfuse components that can serve as rectifiers, dc–dc converter gate drivers, and circuit protection devices for OBCs in these smaller EVs. Available products include thyristors, TVS diodes, and high-voltage fuses.

Block Diagram

Technology:
Product Series:526, 527, 10EV, 20EV
Features:AEC-Q200 qualified, high voltage, ceramic body ensures compatibility with high-temperature environment
Benefits:Provides safety protection in high-voltage environments, full range fuse

Technology:
Product Series:S8016xA
Features:Compact TO-220 and surface mount TO-263 form factors, VDRM of 800 V, IT or 16 A(RMS)
Benefits:Reduces the in-rush current during rectification that can damage expensive DC link capacitor

Technology:
Product Series:Low-Side Drivers, IX4340NE, IX4351NEAU, I
Features:Tight tolerance, small form factor, fast thermal response
Benefits:Dual outputs provide space-efficient design, high immunity to latch-up, rise/fall times less than 10ns

Technology:
Product Series:TPSMB, SZ1SMB, SZP6SMB
Features:Small form factor DO214-AA package, low-clamping voltage, products are available with voltage ratings from 150V~650V
Benefits:Clamps the transient that is created when the MOSFET device switches, ensures reliability

Technology:
Product Series:Low-Side Drivers, IX4340NE
Features:Tight tolerance, small form factor, fast thermal response
Benefits:Dual outputs provide space-efficient design, high immunity to latch-up, rise/fall times less than 10ns

Technology:
Product Series:526, 527, 10EV, 20EV, 30EV1K, 25EV1K, 828, 38EV
Features:AEC-Q200 and ISO 8820-qualified, high-voltage, high-breaking capacity, bolt-down form factor available, ceramic body ensures compatibility with high-temperature environment
Benefits:Provides safety protection in high-voltage environments, full-range fuse

Technology:
Product Series:AQ24COM-02
Features:AEC-Q101-qualified, meets ESD protection levels specified under IEC 61000-4-2 and ISO 10605, low-leakage current and clamping voltage
Benefits:Ensures reliability of the equipment without performance degradation

Technology:
Product Series:SSA
Features:Isolated from HV network, no additional power loss due to shunt resistor
Benefits:High-sensing accuracy, low-thermal offset drift, low-thermal sensitivity drift