SFA0001 [SANKEN]
The present specifications shall apply to switching power supply IC SFA0001-VF-RP;
| 型号： | SFA0001 |
| 厂家： | 
SANKEN ELECTRIC |
| 描述： | The present specifications shall apply to switching power supply IC SFA0001-VF-RP |
| 文件： | 总12页 (文件大小：1177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
１ Scope
The present specifications shall apply to switching power supply IC SFA0001-VF-RP
２ Outline
Type
Semiconductor IC (Monolithic IC)
Plastic package (Transfer mold)
Structure
Build-in current limit protection, thermal shutdown protection.
Features
Built-in error-amp helps eliminate components at sensing stage such as
shunt regulator.
３ Absolute maximum ratings
３－１ Absolute maximum ratings（Ta=25℃）
Parameter
OCP terminal voltage
Symbol
VOCP
VSS
Ratings
-6～+6
Unit
V
SS terminal voltage
-0.3～+9
-0.3～+6
0～36
V
FB terminal voltage
VFB
V
Input voltage for control part
Phase compensation terminal voltage
Frequency setting terminal voltage
Drive terminal peak current
Drive terminal DC current
Power dissipation
VCC
V
-0.3～+ 6
VCOMP
VFREQ
IDRV(peak)
IDRV(DC)
PD
V
-0.3～+ 6
-540mA～+270mA
-180mA～+90mA
1.2 (※１）
V
mA
mA
W
Junction temperature
Tj
-40～150
℃
℃
Storage temperature
Tstg
-40～150
（※1）Mounted on glass epoxy board (The dimension of PCB : 42mm×32mm×1mmt)
３－２ Recommended operating conditions
Parameter
Input voltage for control part
Switching frequency
Symbol
VCC
Ratings
6～24
Unit
V
FOSC
20～200
ｋHz
111227
SSJ-04079
1／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
４ Electrical characteristic
４-１ Electrical characteristics (VCC=14V, Ta=-40～125℃) (*1)
Ratings
TYP
Conditions
Parameter
Symbol
Unit
MIN
MAX
Power supply Start-up Operation
Operation start voltage
FB=0V、SS=0V、OCP=0V、FREQ=200pF
VCC=0V→14V
FB=0V、SS=0V、OCP=0V、FREQ=200pF
VCC=14V→0V
FB=0V、SS=0V、OCP=0V、FREQ=200pF、
VCC=14V
FB=0V、SS=0V、OCP=0V、FREQ=200pF、
VCC=4.8V
VCC(ON)
VCC(OFF)
ICC(ON)
4.9
4.4
1.8
0.3
5.1
4.6
2.8
0.6
5.3
4.8
4
V
V
Operation stop voltage
Circuit current in operation
Circuit current in non-operation
Normal Operation
mA
mA
ICC(OFF)
1
FB=0V、OCP=0V、FREQ=0V、VCC=14V、
SS=0V→2.5V
FB=0V、OCP=0V、FREQ=0V、VCC=14V、
SS=2.5V→0V
SS terminal high threshold voltage
SS terminal low threshold voltage
SS terminal voltage hysteresis width
SS terminal outflow current
SS terminal inflow current
Switching frequency
VHSS
VLSS
1.9
0.9
0.9
11
2
1
2.1
1.1
1.1
19
V
V
VHSS-VLSS
Δ VSS
Isrc(SS)
Isnk(SS)
fosc(200p)
Isrc(FREQ)
Isnk(FREQ)
VHF
1
V
FB=0V、OCP=0V、FREQ=0V、VCC=14V、
SS=0.9V
FB=0V、OCP=0V、FREQ=0V、VCC=14V、
SS=2.1V
FB=0V、SS=0V、OCP=0V、FREQ=200pF、
VCC=14V
FB=0V、OCP=0V、SS=0V、VCC=14V、
FREQ=0.9V
FB=0V、OCP=0V、SS=0V、VCC=14V、
FREQ=2.1V
FB=0V、OCP=0V、SS=0V、VCC=14V、
FREQ=0V→2.5V
FB=0V、OCP=0V、SS=0V、VCC=14V、
FREQ=2.5V→0V
FB=0V、SS=0V、OCP=0V、FREQ=200pF、
VCC=14V
FB=0V、SS=2.5V、COMP=1.3V、
FREQ=470p、VCC=14V、OCP=0V→1V
SS=0V、OCP=0V、FREQ=0V、VCC=14V
FB=0V→2.5V
FB=0V、OCP=0V、SS=0V、VCC=14V
FREQ＝3V・１pluse
FB=0V、OCP=0V、SS=0V、VCC≧6V
FREQ＝3V・１pluse
FB=3V、SS=0V、OCP=1V、FREQ=200pF、
VCC=14V
15
17
100
30
86
2
uA
uA
kHz
uA
uA
V
13
21
85
115
33
FREQ terminal outflow current
FREQ terminal inflow current
Oscillation circuit high threshold voltage
Oscillation circuit low threshold voltage
Maximum on-duty width
27
75
95
1.9
0.9
70
2.1
1.1
78
VLF
1
V
Dmax
73
2.5
2.5
8.3
%
Slope compensation rate
Feedback voltage
SLP
2.1
2.45
7.6
4
2.9
2.55
9
mV/%
V
VFB
Drive voltage
Vdrive
V
Minimam drive voltage
Vdrive(min)
Ton(min)
V
Minimum on-time
400
ns
Protection Operation
Leading edge blanking time
OCP threshold voltage
(*2)
Tbw
VOCP
(70)
0.46
32
100
0.5
42
(150)
0.54
52
ns
V
FB=0V、SS=0V、VCC=14V
FREQ＝3V・１pluse、OCP=0V→1V
FB=0V、OCP=0V、SS=１0ｎF、VCC=14V
FREQ＝3V・１pluse
FB=0V、OCP=0V、VCC=14V
FREQ＝3V・１pluse、SS=0V→5V
OLP delay time
TOLP
ms
V
Drive stop threshold voltage
Thermal shutdown operating temperature
Thermal shutdown release temperature
VST
3.5
4
4.5
(*2)
(*2)
TjH (TSD)
TjL (TSD)
150
165
150
℃
℃
*1 The ratings at Ta=-40℃ to 125℃ shall be treated as a design value.
The ratings of devices shall be checked at -30℃,25℃,125℃ at Outgoing Inspection.
*2 The rating of devices shall be treated as a design value.
４-２ Typical characteristics(Ta=25℃)
111227
SSJ-04079
2／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
115
112
109
106
103
100
97
94
91
88
85
1000
100
10
-50
0
50
100
150
10
100
1000
10000
T j℃[ ]
CFREQ[pF]
2 . 5 5
2 . 5 4
2 . 5 3
2 . 5 2
2 . 5 1
2 . 5
2 . 4 9
2 . 4 8
2 . 4 7
2 . 4 6
2 . 4 5
-50
9
8
7
6
5
4
3
2
1
0
0
50
100
150
0
5
10
15
20
25
VCC[V]
T j℃[ ]
4
3.5
3
2.5
2
1.5
1
0.5
0
0
5
10
15
20
25
VCC[V]
５ Block diagram
Vcc
5.1/4.6V
UVLO
2.5V
Power
ON RST
Vref Reg
Reg
5V
DriveReg
8.3V
V reference
STOP
+
-
+
-
7V
4V
FREQ
SS
OSC
SS_OSC
LEB
SoftStart
OLP
OCP
Drv
OCPComparator
FBComparator
+
-
Logic
Driver
+
-
TSD
Slope
ErrAmp
FB
-
+
2.5V
GND
COMP
111227
SSJ-04079
3／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
６ Standard connection
※Since the switching noise caused by Q1 may affect the operation of an IC ,appropriate
design for peripheral circuits is required to prevent the malfunction of an IC by adding
snubber circuit and /or filter circuit.
７ Pins function description
Terminal No
symbols
VCC
FB
Descripton
Power supply terminal
Feedback terminal
1
2
3
4
5
6
7
8
Ground terminal
GND
SS
Soft start terminal
Frequency setting terminal
Phase compensation terminal
Gate drive terminal
FREQ
COMP
Drive
OCP
Over current protection terminal
111227
SSJ-04079
4／12
61426-01
SANKEN ELECTRIC CO., LTD.
Timing diagram
SFA0001-VF-RP
８
８－１ Timing diagram in standard connection
VCC
VCC(ON)
VCC(OFF)
FB
VFB
COMP
SS
Δ VSS
VHSS
VLSS
FREQ
VHF
VLF
Dmax
Vdrive
DRV
OCP
VOCP
Startup transient operation
Softstart
Steady operation
Start
stop
８－２ Timing diagram in protection
VCC
VCC(ON)
VCC(OFF)
TOLP
TOLP× ８
SS
VST
FREQ
Protected by OCP
Drv
VOCP
VOCP
OCP
Released from OLP operation
Stop Drv terminal operation by
extarnal Input to SS terminal
Overcurrent state
111227
SSJ-04079
5／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
９
Package information
９－１Package type, physical dimensions and material
※1：Part Number
※2：Logo Mark
※3：Lot Number
1st letter：The Last digit of year
2nd letter：Month
（1 to 9 Jan. to Sept.,O for Oct. N
for Nov. D for Dec.）
3rd & 4th letter：day
01～31 Arabic Numeral
※4：Administer number
※1
※2
※3
※4
Dimensions in mm
Zoom of A part
Lead is solder-plated
(except cutting surface of lead)
Terminal No
symbols
VCC
FB
Descripton
Power supply terminal
Feedback terminal
1
2
3
4
5
6
7
8
Ground terminal
GND
SS
Soft start terminal
Frequency setting terminal
Phase compensation terminal
Gate drive terminal
FREQ
COMP
Drive
OCP
Over current protection terminal
９－２ Appearance
The body shall be clean and shall not bear any stain, rust or flaw.
９－３ Marking
The type number and lot number shall be legitimately marked in order not to be erased easily.
111227
SSJ-04079
6／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
The example of the solder pattern
L
L
b2
e1
I2
e1
β2
β1
L
b
e
α
e
e
e
e
e
Symbol
e1
e
Dimensions(mm)
5.72
1.27
α
0.2or more
0.2～0.5
0.2
β1
β2
L
0.6
0.42
b
b2
I2
0.76
L+β1+β2
There are reference value that are according
with the EIAJ standards. (ED-7402-1)
111227
SSJ-04079
7／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
SOP8 Taping specifications for packing
1． Outline
This specification specifies packaging spec. for Sanken electric co., SFA0001-VF-RP as well as
its related matters. Shipping is only taping as to SOP8.
2． Part name indication
This followings specifies part name for taping spec.
2.1 Part name indication method
“Part name” - VF
2.2 IC direction in carrier tape pocket
SFA0001-VF-RP is [VF type] .
End of “Part name” is [- VB]: 1 pin of IC is facing to tape roll-in direction.
End of “Part name” is [- VF]: 1 pin of IC is facing to tape pull-out direction.
3. Embossed taping specifications
3.1 Taping type and physical dimensions
This carrier tape is treated antistatic treatment.
1Pin
Pull-Out direction
Material：Emboss
111227
SSJ-04079
8／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
3.2 Reeling type and physical dimensions
This reel is made of plastic with antistatic treatment.
A label shall be put on a side of flange. A label has part number including a direction for unreeling,
quantity, and lot number.
Note
Reel Material：Plastic
Label content
NAME
LOT
No.
AMOUNT
P・C・Ｓ
SANKEN ELECTRIC CO.,LTD
111227
SSJ-04079
9／12
61426-01
SANKEN ELECTRIC CO., LTD.
3.3 Reeling specifications (Leader/Trail)
SFA0001-VF-RP
Adhesive tape
Cover tape section
Empty carrier tape
Leader
Trail
Leader
Leader
Cover tape section
Empty carrier tape
Leader Section
MIN 100mm
MIN 320mm
MIN 420mm
Trail
Empty carrier tape
MIN 80mm
3.4 Strength of taping seal
Detachment Strength of cover tape 0.1～1.0N
Tear away angle: 165～180° Detachment speed: 300±10mm／min
Cover tape
Carrier tape
Tape feed direction
3.5 Missed parts on tape
The number of missed parts cannot exceed 0.2% of total parts on the tape. Also, missing of sequential
parts must not happen.
111227
SSJ-04079
10／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
4. Packaging
4.1 The number of parts per a reel: 3000 parts (MAX)
4.2 Indication of part name and quantity
A label shows part number, quantity, and lot number.
4.3 Outer packaging of reel
Reel is put into moisture barrier bag and seal with desiccant and put into outer box.
5. Packing Dimensions and Appearance (A box is made of card boards.
The following dimensions are reference value.)
345
336
Dimensions of a box: H336mm x V345mm x T 40mm
233
357
Size of a box contains 5 small boxes: 357mm x 357x 233mm
6. Storage
In order to avoid failures during picking and mounting of devices by degradation of taping peel strength and to
maintain mounting quality, the box shall be stored under temperature +5~+40 degree C and humidity 40%~60%.
Parts shall be used within 3 months from the shipping date with unpacked state.
After unpacking the bag, the parts shall be stored under temperature 30℃ and humidity 60% and used within 168hrs.
Moisture sensitivity level (MSL): Level 3
111227
SSJ-04079
11／12
61426-01
SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
CAUTION/ WARNING
Application and operation examples described in this document are quoted for the sole purpose of reference for the use of
the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual
property rights or any other rights of Sanken or any third party which may result from its use.
Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of
semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk,
preventative measures including safety design of the equipment or systems against any possible injury, death, fires or
damages to the society due to device failure or malfunction.
Sanken products listed in this document are designed and intended for the use as components in general purpose electronic
equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.).
Please return to us this document with your signature(s) or seal(s) prior to the use of the products herein.
When considering the use of Sanken products in the applications where higher reliability is required (transportation
equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety
devices, etc.), please contact your nearest Sanken sales representative to discuss, and then return to us this document with
your signature(s) or seal(s) prior to the use of the products herein.
The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is
required (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited.
In the case that you use our semiconductor devices or design your products by using our semiconductor devices, the
reliability largely depends on the degree of derating to be made to the rated values. Derating may be interpreted as a case that
an operation range is set by derating the load from each rated value or surge voltage or noise is considered for derating in
order to assure or improve the reliability. In general, derating factors include electric stresses such as electric voltage, electric
current, electric power etc., environmental stresses such as ambient temperature, humidity etc. and thermal stress caused due
to self-heating of semiconductor devices. For these stresses, instantaneous values, maximum values and minimum values
must be taken into consideration.
In addition, it should be noted that since power devices or IC’s including power devices have large self-heating value, the
degree of derating of junction temperature (Tj) affects the reliability significantly.
When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically,
chemically or otherwise processing or treating the products, please duly consider all possible risks that may result from all
such uses in advance and proceed therewith at your own responsibility.
Anti radioactive ray design is not considered for the products listed herein.
Sanken assumes no responsibility for any troubles, such as dropping products caused during
transportation out of Sanken’s distribution network.
111227
SSJ-04079
12／12
61426-01
相关型号：
SFA0001-VF-RP
The present specifications shall apply to switching power supply IC SFA0001-VF-RP
SANKEN
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