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Sanken

SFA0001 Datasheet Preview

SFA0001 Datasheet

Switching Power-Supply

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SANKEN ELECTRIC CO., LTD.
Scope
The present specifications shall apply to switching power supply IC SFA0001-VF-RP
Outline
Type
Structure
Semiconductor IC (Monolithic IC)
Plastic package (Transfer mold)
SFA0001-VF-RP
Features
Build-in current limit protection, thermal shutdown protection.
Built-in error-amp helps eliminate components at sensing stage such as
shunt regulator.
Absolute maximum ratings
3-1 Absolute maximum ratingsTa=25℃)
Parameter
Symbol
Ratings
Unit
OCP terminal voltage
VOCP
-6+6
V
SS terminal voltage
VSS
-0.3+9
V
FB terminal voltage
VFB
-0.3+6
V
Input voltage for control part
VCC
036
V
Phase compensation terminal voltage
VCOMP
-0.3+ 6
V
Frequency setting terminal voltage
VFREQ
-0.3+ 6
V
Drive terminal peak current
IDRV(peak) -540mA+270mA mA
Drive terminal DC current
IDRV(DC)
-180mA+90mA
mA
Power dissipation
PD
1.2 (※1)
W
Junction temperature
Tj
-40150
Storage temperature
Tstg
-40150
(※1Mounted 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
Ratings
Unit
V CC
624
V
FOSC
20200
Hz
111227
SSJ -04079
112
61426-01




Sanken

SFA0001 Datasheet Preview

SFA0001 Datasheet

Switching Power-Supply

No Preview Available !

SANKEN ELECTRIC CO., LTD.
SFA0001-VF-RP
Electrical characteristic
-Electrical characteristics (VCC=14V, Ta=-40125) (*1)
Parameter
Symbol
Ratings
MIN TYP MAX
Unit
Conditions
Power supply Start-up Operation
Operation start voltage
Operation stop voltage
Circuit current in operation
Circuit current in non-operation
FB=0VSS=0VOCP=0VFREQ=200pF
VCC(ON)
4.9
5.1
5.3
V VCC=0V14V
FB=0VSS=0VOCP=0VFREQ=200pF
VCC(OFF) 4.4
4.6
4.8
V VCC=14V0V
FB=0VSS=0VOCP=0VFREQ=200pF
ICC(ON)
1.8
2.8
4
mA VCC=14V
FB=0VSS=0VOCP=0VFREQ=200pF
ICC(OFF)
0.3
0.6
1
mA VCC=4.8V
Normal Operation
FB=0VOCP=0VFREQ=0VVCC=14V
SS terminal high threshold voltage
VHSS
1.9
2
2.1
V SS=0V2.5V
FB=0VOCP=0VFREQ=0VVCC=14V
SS terminal low threshold voltage
VLSS
0.9
1
1.1
V SS=2.5V0V
VHSS-VLSS
SS terminal voltage hysteresis width
Δ VSS
0.9
1
1.1
V
FB=0VOCP=0VFREQ=0VVCC=14V
SS terminal outflow current
Isrc(SS)
11
15
19
uA SS=0.9V
FB=0VOCP=0VFREQ=0VVCC=14V
SS terminal inflow current
Isnk(SS)
13
17
21
uA SS=2.1V
FB=0VSS=0VOCP=0VFREQ=200pF
Switching frequency
fosc(200p)
85
100 115 kHz VCC=14V
FB=0VOCP=0VSS=0VVCC=14V
FREQ terminal outflow current
Isrc(FREQ) 27
30
33
uA FREQ=0.9V
FB=0VOCP=0VSS=0VVCC=14V
FREQ terminal inflow current
Isnk(FREQ) 75
86
95
uA FREQ=2.1V
FB=0VOCP=0VSS=0VVCC=14V
Oscillation circuit high threshold voltage
VHF
1.9
2
2.1
V FREQ=0V2.5V
FB=0VOCP=0VSS=0VVCC=14V
Oscillation circuit low threshold voltage
VLF
0.9
1
1.1
V FREQ=2.5V0V
FB=0VSS=0VOCP=0VFREQ=200pF
Maximum on-duty width
Dmax
70
73
78
% VCC=14V
FB=0VSS=2.5VCOMP=1.3V
Slope compensation rate
SLP
2.1
2.5
2.9 mV/% FREQ=470pVCC=14VOCP=0V1V
SS=0VOCP=0VFREQ=0VVCC=14V
Feedback voltage
VFB
2.45 2.5 2.55
V FB=0V2.5V
FB=0VOCP=0VSS=0VVCC=14V
Drive voltage
Vdrive
7.6
8.3
9
V FREQ3V・1pluse
FB=0VOCP=0VSS=0VVCC6V
Minimam drive voltage
Vdrive(min)
4
V FREQ3V・1pluse
FB=3VSS=0VOCP=1VFREQ=200pF
Minimum on-time
Ton(min)
400
ns VCC=14V
Protection Operation
Leading edge blanking time
OCP threshold voltage
OLP delay time
Drive stop threshold voltage
Tbw
VOCP
TOLP
VST
(70) 100 (150) ns (*2)
FB=0VSS=0VVCC=14V
0.46 0.5 0.54
V FREQ3V・1pluseOCP=0V1V
FB=0VOCP=0VSS=0FVCC=14V
32
42
52
ms FREQ3V・1pluse
FB=0VOCP=0VVCC=14V
3.5
4
4.5
V FREQ3V・1pluseSS=0V5V
Thermal shutdown operating temperature TjH (TSD) 150 165
(*2)
Thermal shutdown release temperature
TjL (TSD)
150
(*2)
*1 The ratings at Ta=-40to 125shall be treated as a design value.
The ratings of devices shall be checked at -30,25,125at Outgoing Inspection.
*2 The rating of devices shall be treated as a design value.
-Typical characteristics(Ta=25)
111227
SSJ -04079
212
61426-01


Part Number SFA0001
Description Switching Power-Supply
Maker Sanken
PDF Download

SFA0001 Datasheet PDF






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