TOSHIBA CMS08

CMS08
TOSHIBA Schottky Barrier Rectifier
Schottky Barrier Type
CMS08
Switching Mode Power Supply Applications
Portable Equipment Battery Applications
•
•
•
•
Unit: mm
Forward voltage: VFM = 0.37 V (max)
Average forward current: IF (AV) = 1.0 A
Repetitive peak reverse voltage: VRRM = 30 V
Suitable for compact assembly due to small surface-mount package
“M−FLATTM” (Toshiba package name)
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
VRRM
30
V
IF (AV)
(Note 1)
1.0
(Ta = 51°C)
A
IF (AV)
1.0
(Tℓ = 106°C)
A
IFSM
25 (50 Hz)
A
JEDEC
―
Junction temperature
Tj
−40~125
°C
JEITA
―
Storage temperature
Tstg
−40~150
°C
TOSHIBA
Repetitive peak reverse voltage
Average forward current
Peak one cycle surge forward current
(non-repetitive)
Note 1: Device mounted on a ceramic board
(board size: 50 mm × 50 mm, soldering land: 2 mm × 2 mm)
3-4E1A
Weight: 0.023 g (typ.)
Note 2: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly
even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute
maximum ratings.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/Derating Concept and Methods) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Electrical Characteristics (Ta = 25°C)
Characteristics
Peak forward voltage
Repetitive peak reverse current
Junction capacitance
Thermal resistance
Thermal resistance
Symbol
Test Condition
Min
Typ.
Max
⎯
VFM (1)
IFM = 0.1 A
⎯
0.23
VFM (2)
IFM = 0.5 A
⎯
0.29
⎯
VFM (3)
IFM = 1.0 A
⎯
0.32
0.37
IRRM
VRRM = 5 V
⎯
0.04
⎯
IRRM
VRRM = 30 V
⎯
0.38
1.5
Cj
Rth (j-a)
VR = 10 V, f = 1.0 MHz
⎯
70
⎯
Device mounted on a ceramic board
(soldering land: 2 mm × 2 mm)
⎯
⎯
60
Device mounted on a glass-epoxy
board
(soldering land: 6 mm × 6 mm)
⎯
⎯
135
⎯
⎯
16
⎯
Rth (j-ℓ)
1
Unit
V
mA
pF
°C/W
°C/W
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CMS08
Marking
Abbreviation Code
Part No.
S8
CMS08
Standard Soldering Pad
2.1
Unit: mm
1.4
3.0
1.4
Handling Precaution
Schottky barrier diodes have reverse current characteristic compared to the other diodes.
There is a possibility SBD may cause thermal runaway when it is used under high temperature or high voltage.
This device is VF-IRRM trade-off type, lower VF higher IRRM; therefore, thermal runaway might occur when
voltage is applied. Please take forward and reverse loss into consideration during design.
The absolute maximum ratings denote the absolute maximum ratings, which are rated values and must not be
exceeded during operation, even for an instant. The following are the general derating methods that we recommend
when you design a circuit with a device.
VRRM:
Use this rating with reference to the above. VRRM has a temperature coefficient of 0.1%/°C. Take
this temperature coefficient into account designing a device at low temperature.
IF(AV):
We recommend that the worst case current be no greater than 80% of the absolute maximum rating
of IF(AV) and Tj be below 100°C. When using this device, take the margin into consideration by
using an allowable Tamax-IF(AV) curve.
IFSM:
This rating specifies the non-repetitive peak current. This is only applied for an abnormal operation,
which seldom occurs during the lifespan of the device.
Tj:
Derate this rating when using a device in order to ensure high reliability. We recommend that the
device be used at a Tj of below 100°C.
Thermal resistance between junction and ambient fluctuates depending on the device’s mounting condition. When
using a device, please design a circuit board and a soldering land size to match the appropriate thermal resistance
value.
Please refer to the Rectifiers databook for further information.
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CMS08
iF – vF
PF (AV) – IF (AV)
0.5
75°C
25°C
140
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Instantaneous forward voltage vF
(V)
Rectangular
waveform
60
α = 120°
40
0° α 360°
IF (AV)
Conduction angle: α
VR = 15 V
α = 60°
20
0.2
0.4
0.6
0.8
Average forward current
1.0
1.2
1.4
α = 60°
0.2
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
IF (AV) (A)
DC
120
100
Rectangular
waveform
α = 120°
60
40
0° α 360°
IF (AV)
20 Conduction angle: α
VR = 15 V
0
0
1.6
α = 180°
α = 60°
80
0.2
IF (AV) (A)
0.4
0.6
0.8
Average forward current
1.0
1.2
1.4
1.6
IF (AV) (A)
rth (j-a) – t
(°C/W)
0
0
0.3
α = 180°
α = 120°
Tℓ max – IF (AV)
100
α = 180°
0° α 360°
Conduction angle: α
140
DC
80
DC
0.4
Average forward current
Ta max – IF (AV)
Device mounted on a ceramic board
(board size: 50 mm × 50 mm)
120
Rectangular
waveform
0
0
0.8
Maximum allowable lead temperature
Tℓ max (°C)
1
0.1
0
Maximum allowable ambient temperature
Ta max (°C)
Average forward power dissipation
PF (AV) (W)
125°C
Transient thermal impedance rth (j-a)
Instantaneous forward current
iF (A)
10
500
Device mounted on a glass-epoxy board
Soldering land: 2.1 mm × 1.4 mm
100
Device mounted on a glass-epoxy board
Soldering land: 6.0 mm × 6.0 mm
10
Device mounted on a ceramic board
Soldering land: 2.0 mm × 2.0 mm
1
0.5
0.001
0.01
0.1
1
10
100
1000
Time t (s)
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CMS08
Cj – VR
Surge forward current (non-repetitive)
Ta = 25°C
f = 50 Hz
f = 1 MHz
Ta = 25°C
Cj (pF)
24
20
16
12
8
4
0
1
10
100
100
10
1
Number of cycles
10
Reverse voltage
IR – Tj
(typ.)
1000
10
VR = 20 V
VR = 15 V
1
VR = 10 V
VR = 5 V
VR = 3 V
0.1
Average reverse power dissipation
PR (AV) (W)
(mA)
VR = 30 V
VR
(V)
PR (AV) – VR
Pulse test
100
100
(typ.)
4.0
3.6
Reverse current IR
(typ.)
1000
Junction capacitance
Peak surge forward current
IFSM (A)
28
3.2
2.8
2.4
2.0
Rectangular waveform
360°
0°
VR
DC
300°
α
Conduction angle: α
Tj = 125°C
240°
180°
1.6
120°
1.2
60°
0.8
0.4
0.01
0
20
40
60
80
100
Junction temperature Tj
120
0
0
140
(°C)
10
Reverse voltage
4
20
VR
30
(V)
2006-11-13
CMS08
RESTRICTIONS ON PRODUCT USE
20070701-EN
• The information contained herein is subject to change without notice.
• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc.
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.).These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in his
document shall be made at the customer’s own risk.
• The products described in this document shall not be used or embedded to any downstream products of which
manufacture, use and/or sale are prohibited under any applicable laws and regulations.
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patents or other rights of
TOSHIBA or the third parties.
• Please contact your sales representative for product-by-product details in this document regarding RoHS
compatibility. Please use these products in this document in compliance with all applicable laws and regulations
that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses
occurring as a result of noncompliance with applicable laws and regulations.
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