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Toshiba Releases Industry’s First Photocouplers for High-Speed Communications that can Operate from 2.2V

2020-06-29 | Return

―Support low-voltage peripheral circuits and enable parts reductions―

TOKYO—Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has released the industry’s first[1] photocouplers for high-speed communications that can operate with a power supply as low as 2.2V. The two devices are the “TLP2312,” which delivers at typical data transfer rate of 5Mbps, and the 20Mbps “TLP2372.” Shipments start today.

The new products are designed to operate at low voltage, starting at 2.2V, so as to work with the lower voltages of the peripheral circuits, even when used in such low level voltage circuits as 2.5V LVCMOS. This approach eliminates the need for a separate power supply to drive the photocouplers, reducing the component count.

With a low threshold input current of 1.6mA (max), and low supply current of 0.5mA (max) in their -40℃ and +125℃ operating temperature range, the new photocouplers can be directly driven by microcontrollers, reducing power consumption.

The new photocouplers are housed in 5-pin SO6 package with a maximum height of 2.3mm, securing a low profile and bringing greater freedom to component layout on printed circuit boards.

Applications
High-speed digital interfaces

(programmable logic controllers (PLCs), general purpose inverters, measuring equipment and control equipment, etc.)

Features
> Low voltage operation: VDD=2.2V to 5.5V
> Low threshold input current: IFLH=1.6mA (max)
> Low supply current: IDDH, IDDL =0.5mA (max)
> High operating temperature rating: Topr max=125℃
> High-speed data transfer rates: 5Mbps (typ.) (TLP2312) / 20Mbps (typ.) (TLP2372)

Main Specifications
(Unless otherwise specified, @Ta= -40 to +125℃)

Part number			TLP2312	TLP2372
Data transfer rate typ. (Mbps)			5	20
Package	Name		5pin SO6
	Height max (mm)		2.3
Absolute maximum ratings	Operating temperature T_opr max (℃)		125
	Output current I_O (mA)	@T_a=25℃	8
Operating Ranges	Supply voltage V_DD (V)		2.2 to 5.5
Electrical characteristics	Supply current I_DDH, I_DDL max (mA)		0.5
	Threshold input current (L/H) I_FLH max (mA)		1.6
Switching characteristics	Propagation delay time t_pHL, t_pLH max (ns)		250	60^[2]
	Common mode transient immunity CM_H, CM_L min (kV/μs)	@T_a=25℃	±20
Isolation characteristics	Isolation voltage BV_S min (Vrms)	@T_a=25℃	3750

Notes:
[1] Among IC output photocouplers for high-speed communications, according to a survey by Toshiba, as of June 2020.
[2] At VIN=2.5V, RIN=470Ω, CIN=68pF

Follow the links below for more on the new product.
TLP2312
TLP2372

Follow the link below for more on Toshiba’s optical semiconductor devices line-up.
Optical Semiconductor Devices

Source：http://www.semicon.toshiba.co.jp/eng/