Toshiba Electronic Devices & Storage Corporation Launches Photocoupler with UVLO Function for Digital Control Switching Power Supplies and IPM Drive

TOKYO — (BUSINESS WIRE) — September 21, 2017Toshiba Electronic Devices & Storage Corporation (TDSC) today announced the launch of “TLP2735,” a high speed IC photocoupler for MOSFET gate signal insulation and the company’s first to incorporate an under voltage lockout (UVLO) function.

This Smart News Release features multimedia. View the full release here: http://www.businesswire.com/news/home/20170921005462/en/

Toshiba Electronic Devices & Storage Corporation: a high speed IC photocoupler "TLP2735" with a UVLO ...

Toshiba Electronic Devices & Storage Corporation: a high speed IC photocoupler "TLP2735" with a UVLO function. (Photo: Business Wire)

UVLO cuts the photocoupler’s susceptibility to noise like that generated in power supply cables, and can prevent malfunctioning when products are switched on. With an isolation voltage of 5kVrms (min) between the input and output, as well as conformity with the IEC60747-5-5[1] photocoupler safety standard, TLP2735 is also suitable for applications requiring high insulation performance.

The operating power supply voltage in the output side is 9 to 20V, specifications suited to MOSFET gate voltages, and the propagation delay time is 100ns (max), fast for a photocoupler designed for MOS gate insulation. As its power supply voltage is high, it can also be used for IPM input insulation.

Simply adding a buffer circuit to the subsequent stage of TLP2735, a MOSFET insulation gate drive circuit can be implemented. In addition, with its operating temperatures of -40 to 125oC, it can also be used in a high temperature environment.

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, Inc. “Market Share: Semiconductor Devices and Applications Worldwide 2016” 30 March, 2017)

TDSC 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.

Applications

  • Isolation interface of MOSFET gate signal
  • Digital control switching power supply
  • Industrial automation equipment (IPM drive)

Features

  • Built-in UVLO function with hysteresis
  • Operating temperature rating: Topr (max) = -40 to 125℃
  • Thin SO6L package with long creepage distance
    (Height 2.3 mm (max), creepage and clearance distances 8mm (min), support reinforced isolation)
 

Main Specifications

(Unless otherwise specified @Ta= -40 to 125℃)

Part
Number

  Package  

Creepage
distances
min (mm)

 

Absolute
maximum
ratings

 

Isolation
voltage
BVS
min
@Ta=25℃
(kVrms)

 

Threshold
input current
(H to L)
I FLH
max
(mA)

 

UVLO
threshold
voltage
V UVLO+ ,
V UVLO-
typ.
(V)

 

Propagation
delay time
t pHL , t pLH
max
(ns)

 

Common-
mode
transient
immunity
CM H , CM L
min
(kV/μs)

Operating
temperature
T opr (℃)

TLP2735   SO6L   8   -40 to 125   5   3   8.1/7.5   100   25
 

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