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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftsm24ca”>View Datasheet

Texas Instruments TSM24CA/TSM24CA-Q1 24V Bidirectional TVS Diode

Texas Instruments TSM24CA/TSM24CA-Q1 24V Bidirectional TVS Surge Protection Diode robustly shunts up to 30A of IEC 61000-4-5 (8/20µs) fault current to protect systems from lightning strikes or high power transients. The device offers a solution to the common industrial signal line EMC requirement to survive up to 1kV IEC 61000-4-5 open circuit voltage coupled through a 42Ω impedance, clamping that surge at 35V (IPP = 24A). The TSM24CA/TSM24CA-Q1 also has a very low line capacitance of 14pF, which protects common automotive communication networks like CAN from surges in EV charging applications.

Additionally, the Texas Instruments TSM24CA/TSM24CA-Q1 is available in a small leaded SOT-23 (DBZ) package, which is reduced in size by approximately 50 percent compared to the industry standard SMA package. The extremely low device leakage and capacitance provide a minimal effect on the protected line. The TSM24CA-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Protection against 1kV, 42Ω IEC 61000-4-5 surges for automotive signal lines
  • Robust surge protection
    • IEC 61000-4-5 (8/20µs): 30A
  • Bidirectional polarity to support positive and negative voltage swings and miswiring conditions
  • Low clamping voltage of 35V at 24A for 8/20µs surge current protects downstream components
  • Low I/O capacitance of 14pF (typical)
  • ±24V working voltage for protecting signals on 12V systems
  • Low leakage current of 100nA (max)
  • Integrated level 4 IEC 61000-4-2 ESD protection
    • 30kV ESD protection (IEC 61000-4-2)
  • Small SOT-23 leaded package to minimize board space and allow for automatic optical inspection (AOI)

Applications

  • Automotive hybrid, electric, and power train systems
  • HEV/EV onboard charger
  • EV battery charging communication
    • CHAdeMO
    • CCS
    • GB/T
  • Automotive in-vehicle networks
    • Controller area network (CAN)
    • Local interconnect network (LIN)
  • 24V power lines or digital input or output lines

EV Charging CAN Bus Application

Application Circuit Diagram - Texas Instruments TSM24CA/TSM24CA-Q1 24V Bidirectional TVS Diode

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Texas Instruments TSM24CA/TSM24CA-Q1 24V Bidirectional TVS Diode