Toshiba Launches New Series of eFuse ICs, Electronic Fuses That Can Be Used Repeatedly
July 17 2024 - 9:00PM
Business Wire
- Introducing the compact, high-voltage “TCKE9
Series” -
Toshiba Electronic Devices & Storage Corporation (“Toshiba”)
has launched a lineup of eight compact, high-voltage electronic
fuses (eFuse ICs), the TCKE9 Series, that support multiple
functions for the protection of power supply lines. Shipments of
the first two products “TCKE903NL” and “TCKE905ANA” start today,
with others to follow.
This press release features multimedia. View
the full release here:
https://www.businesswire.com/news/home/20240717112149/en/
Toshiba: TCKE9 Series eFuse IC that
support multiple functions for the protection of power supply
lines. (Graphic: Business Wire)
The TCKE9 Series products have a current limit and voltage clamp
function to protect the lines in power supply circuits against
overcurrent and overvoltage conditions, something that standard
physical fuses cannot do. Even in the event of abnormal overcurrent
or overvoltage, the specified current and voltage are
maintained.
The new products also feature over-temperature protection and
short-circuit protection, which protects a circuit by immediately
shutting off the eFuse IC when abnormal heat is generated in the
circuit or an unexpected short-circuit occurs. A further eFuse IC
advantage is the elimination of complex circuit design and a
reduced component count, realizing much simpler circuit designs
with fewer components and a smaller area than is possible with a
protection function secured with discrete parts.
Toshiba intends to obtain IEC 62368-1 certification, the
international safety standard for high level safety, for the eFuse
ICs, which will also simplify certification tests customers’
devices are required to undergo.
The product lineup offers eight products: four, 3.3V, 5V, 12V,
20V, are suitable for overvoltage protection of a range of power
supply voltages, and each has two types – an auto-retry type, where
the eFuse IC automatically recovers the circuit itself, and a latch
type, where recovery is triggered by an external signal. Customers
can select the appropriate product for their requirements and the
size of their equipment.
Reference designs for an eFuse IC Application Circuit (with
Thermal Shutdown) and an eFuse IC Application Circuit (with
Enhanced Overcurrent Protection) are available now on Toshiba’s
website.
Applications
- Protection of power supply circuits (servers, SSDs, laptop PCs,
gaming consoles, augmented reality and virtual reality equipment,
etc.)
Features
- Maximum input voltage : VIN (max)=25.0 V
- Low On-resistance : Ron=34mΩ (typ.)
- High-output current rating : IOUT = 0 to 4.0A
- Input overvoltage clamp function (4 types)
- Overcurrent limit accuracy : ILIM accuracy =-17%/+14% (Ta=-40
to 125°C, RILIM=487Ω)
- Output-Short Reaction Time : tSHORT = 2μs (typ.)
- FLAG function
- Thin and compact WSON8 package : 2.0×2.0mm (typ.), t=0.8mm
(max)
Main Specifications
(Unless otherwise specified, Ta
=25°C)
Part number
Operating ranges
Electrical characteristics
Recovery operation type
Other characteristics
Stock Check & Purchase
Input voltage
VIN
(V)
Operation junction
temperature
Tj_opr
(°C)
Output current
IOUT
(A)
Over current limit accuracy
ILIM accuracy
(%)
Over voltage clamp
VOVC
(V)
Short circuit response time
tSHORT
(μs)
Current limit response time
tLIM
(μs)
Min/Max
Typ.
Typ.
Typ.
TCKE903NL
2.7 to 23.0
-40 to 125
0 to 4.0
-17/+14 [2]
3.87
2.0
80
Latched
FLAG function
Buy Online
TCKE903NA [1]
Auto-retry
-
TCKE905NL [1]
5.7
Latched
-
TCKE905ANA
Auto-retry
Buy Online
TCKE912NL [1]
13.7
Latched
-
TCKE912NA [1]
Auto-retry
-
TCKE920NL [1]
22.2
Latched
-
TCKE920NA [1]
Auto-retry
-
Notes: [1] Under development [2] Ta=-40 to 125°C, RILIM=487Ω
Follow the links below for more on the new products. TCKE903NL
TCKE903NA TCKE905NL TCKE905ANA TCKE912NL TCKE912NA TCKE920NL
TCKE920NA
Follow the link below for more on Toshiba eFuse ICs. eFuse
ICs
To check availability of the new products at online
distributors, please visit: TCKE903NL Buy Online
TCKE905ANA Buy Online
* Company names, product names, and service names may be
trademarks of their respective companies. * Information in this
document, including product prices and specifications, content of
services and contact information, is current on the date of the
announcement but is subject to change without prior notice.
About Toshiba Electronic Devices & Storage
Corporation
Toshiba Electronic Devices & Storage Corporation, a leading
supplier of advanced semiconductor and storage solutions, draws on
over half a century of experience and innovation to offer customers
and business partners outstanding discrete semiconductors, system
LSIs and HDD products.
Its 19,400 employees around the world share a determination to
maximize product value, and to promote close collaboration with
customers in the co-creation of value and new markets. The company
looks forward to building and to contributing to a better future
for people everywhere.
Find out more about TDSC at
https://toshiba.semicon-storage.com/ap-en/top.html
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