TLP2160 dual-channel high-speed optocoupler — 20kV/μs CMTI, 2.7V–5.5V, totem-pole, SOP-8

The TLP2160 is a dual-channel high-speed optocoupler from Toshiba, consisting of two high-output infrared LED and high-speed photo IC pairs in a single SOP-8 (SO-8) SMD package. With a guaranteed common-mode transient immunity (CMTI) of 20kV/μs provided by an internal noise shield, it is designed for reliable signal isolation in high-noise industrial and power electronics environments.

Operating from a wide supply voltage range of 2.7V to 5.5V and rated up to 125°C, the TLP2160 features a totem-pole output capable of both sourcing and sinking current, making it suitable for direct logic interfacing without additional buffer stages. Its dual-channel configuration in a compact SOP-8 package helps save board space compared to using two single-channel optocouplers.

Key Specifications:

• Part number: TLP2160
• Channels: 2 (dual-channel, two LED-photoreceptor pairs)
• Supply voltage (V_CC): 2.7V – 5.5V
• Maximum operating temperature: 125°C
• Common-mode transient immunity (CMTI): 20kV/μs (guaranteed)
• Output type: totem-pole (source and sink)
• Input: high-output infrared LED
• Package: SOP-8 / SO-8 (SMD, 8-pin)

Key Features:

• 20kV/μs CMTI — internal noise shield provides guaranteed immunity to high dV/dt transients
• Dual-channel in SOP-8 — two isolated channels in one compact package, saving board space
• Totem-pole output — can source and sink current for direct logic interfacing
• Wide supply range (2.7V–5.5V) — compatible with 3.3V and 5V logic systems
• 125°C max operating temperature — suitable for industrial and high-ambient environments
• High-speed switching — suitable for high-frequency digital signal isolation

Applications:

• Factory networking and industrial fieldbus signal isolation
• High-speed digital interfacing for instrumentation and control devices
• Plasma display panel (PDP) drive signal isolation
• Microcontroller to power stage signal isolation
• Gate signal isolation for low-power MOSFETs and logic-level IGBTs
• General-purpose high-speed digital isolation

Note: The TLP2160 is a signal-level optocoupler, not a gate driver. For driving high-power IGBTs or MOSFETs directly, pair with a dedicated gate driver IC. Refer to the TLP2160 datasheet for input current, propagation delay, and output drive specifications.