Back to Texas Instruments

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

Datasheets

EV Charging CAN Bus Application

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

Related Development Tool

Texas Instruments ESDEVM Evaluation Module (EVM)

Comes with all traditional ESD footprints in order to be able to test any number of devices.

Learn Moreabout Texas Instruments ESDEVM Evaluation Module (EVM) View Productsrelated to Texas Instruments ESDEVM Evaluation Module (EVM)
Published: 2023-11-08 | Updated: 2023-12-01