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Toshiba Launches Smart Gate Driver Photocoupler with Improved Desaturation Sensing Function

May 18, 2017


TOKYO–Toshiba Corporation's (TOKYO: 6502) Storage & Electronic Devices Solutions Company today announced the launch of "TLP5214A," a new smart gate driver photocoupler for use in driving medium-power IGBTs and power MOSFETs that delivers desaturation sensing characteristics that improve on those offered by the current "TLP5214". Mass production shipments start today.

TLP5214A newly integrates such features as desaturation leading edge blanking time, filtering time, and optimization of soft turn-off performance. These contribute to secure execution of applications by suppressing short-time pulse noise during switching and desaturation sensing.

The latest Gartner market report recognizes Toshiba as the leading manufacturer of optocouplers by sales in 2015 and 2016, with 23% of sale-based market share in CY2016. (Source: Gartner "Market Share: Semiconductor Devices and Applications Worldwide 2016" 30 March, 2016)

Toshiba will continue to deliver products that meet the needs of customers by promoting the development of a diverse portfolio of photocouplers and photorelays tailored to market trends.


  • IGBT/MOSFET drive
  • Industrial inverters
  • Inverters for solar energy
  • Servo amplifiers
  • Air conditioner inverters

New Features

  • DESAT leading edge blanking time: 1.1μs (typical)
  • DESAT filter time: 90ns (typical)
  • Soft turn-off time (tDESAT(10%))**: 7μs (typical)  Current item[1]: 3.5μs (typical)
    **Under condition of Cg = 25nF

Main Specifications

(Unless otherwise specified, Ta = -40 to 110℃. All typical values are at Ta = 25℃)

Part number TLP5214A
Electrical characteristics Peak output current ±4.0 A (Max.)
Supply voltage 15 to 30 V
Supply current 3.8 mA (Max.)
Threshold input current 6 mA (Max.)
Switching characteristics Propagation delay time 150 ns (Max.)
Propagation delay skew -80 to 80 ns
Protection function IGBT desaturation detection DESAT threshold voltage: 6.5 V (typ.)
DESAT leading edge blanking time: 1.1 μs (typ.)
DESAT filter time: 90 ns (typ.)
Soft turn-off DESAT sense to 10% delay time: 7 μs (typ.) *Cg = 25 nF
DESAT sense to 10% delay time: 3.5 μs (typ.) *Cg = 10 nF
Miller clamp (off) Clamp pin threshold voltage: 2.5 V (typ.)
Undervoltage lockout (UVLO) VUVLO+: 11.6 V (typ.)
VUVLO-: 10.3 V (typ.)
Isolation characteristics
(@Ta = 25 ℃)
Isolation voltage 5000 Vrms (Min.)
Clearance distance 8.0 mm (Min.)
Creepage distance 8.0 mm (Min.)
Isolation thickness 0.4 mm (Min.)


[1] Current item: TLP5214

Follow the link below for more on the new product and Toshiba’s photocoupler line-up.

Customer Inquiries:

Optoelectronic Device Sales & Marketing Dept.
Tel: +81-3-3457-3431

Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.