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SI-8001FDL 数据表(PDF) 1 Page - Sanken electric

部件名 SI-8001FDL
功能描述  Surface Mount, Separate Excitation Step-down Switching Mode
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制造商  SANKEN [Sanken electric]
网页  http://www.sanken-ele.co.jp/en
标志 SANKEN - Sanken electric

SI-8001FDL 数据表(HTML) 1 Page - Sanken electric

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32
ICs
1-1-3 DC/DC Converter ICs
■Features
• Surface-mount package (TO263-5)
• Output current: 3.5 A
• High efficiency: 83% (Vo = 5 V, VIN = 15 V, Io = 2 A)
• Requires only 6 discrete components
• Built-in reference oscillator (300 kHz)
• Built-in drooping-type overcurrent and thermal
protection circuits
• Built-in soft start circuit (Output ON/OFF
available)
- SI-8001FDE
• Built-in on/off function (active Low)
- SI-8001FDL
• Low current consumption during off
- SI-8001FDL
■Lineup
■Absolute Maximum Ratings
Unit
V
V
W
°C
°C
°C/W
°C/W
Ratings
SI-8001FDE
SI-8001FDL
43
–VIN
3
+150
–40 to +150
3*1
33.3*1
Symbol
VIN
Vc
PD
Tj
Tstg
θj-c
θj-a
Parameter
Input Voltage
ON/OFF Control Voltage
Power Dissipation*1
Junction Temperature*2
Storage Temperature
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient Air)
Part Number
SI-8001FDE
SI-8001FDL
VO(V)
Variable(0.8 to 24)
IO(A)
3.5
Function
Soft start
ON/OFF
Conditions
When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%)
When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%)
When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%)
*1 : Limited by thermal protection circuit
*2 : This product has built-in thermal protection circuits that may activate when the junction temperature exceeds 130°C.
The recommended design for the junction temperature during IC operation is below 125°C.
Parameter
Input Voltage Range
Output Voltage Range
Output Current Range
Operating Junction Temperature Range
Operating Temperature Range
Symbol
VIN
VO
IO
Tjop
Top
Ratings
SI-8001FDE
SI-8050FDL
Vo+3*1 to 40
0.8 to 24
0 to 3.5
–30 to +100
–30 to +85
Unit
V
V
A
°C
°C
*1: The minimum value of the input voltage range is 4.5 V or Vo + 3 V, whichever is higher.
■Recommended Operating Conditions
■Electrical Characteristics
Unit
V
mV/ °C
%
kHz
mV
mV
A
V
µA
V
V
µA
mA
µA
Parameter
Reference Voltage
Temperature Coefficient of Reference Voltage
Efficiency
Oscillation Frequency
Line Regulation
Load Regulation
Overcurrent Protection Starting Current
Low Level Voltage
SS Pin*1
Outflow Cuurent
at Low Voltage
ON/OFF Control Voltage (Output on)
ON/OFF Pin*2
ON/OFF Control Voltage (Output off)
ON/OFF Controll Current (Output on)
Quiescent Circuit Current
Symbol
VADJ
Conditions
∆VADJ/∆T
Conditions
η
Conditions
fO
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
IS
Conditions
VSSL
ISSL
Conditions
Vc, IH
Vc, IL
Ic, IH
Conditions
Iq
Conditions
Iq(OFF)
Conditions
(R1=4.2kΩ, R2=0.8kΩ when Ta = 25°C and Vo=5V)
*1: Pin 5 is the SS pin. Soft start at power on can be performed with a capacitor connected to
this pin. The output can also be turned ON/OFF with this pin. The output is stopped by
setting the voltage of this pin to VSSL or lower. SS-pin voltage can be changed with an
open-collector drive circuit of a transistor. When using both the soft-start and ON/OFF
functions together, the discharge current from C3 flows into the ON/OFF control transistor.
Therefore, limit the current securely to protect the transistor if C3 capacitance is large. The
SS pin is pulled up (3.7 V typ.) to the power supply in the IC, so applying the external
voltage is prohibited. If this pin is not used, leave it open.
*2: Output is OFF when the output control terminal VC is open. Each input level is equivalent to
LS-TTL. Therefore, the device can be driven directly by LS-TTLs.
Ratings
SI–8001FDE
SI–8001FDL
min.
typ.
max.
min.
typ.
max.
0.784
0.800
0.816
0.784
0.800
0.816
VIN=15V, Io=0.2A
VIN=15V, Io=0.2A
±0.1
±0.1
VIN=15V, Io=0.2A, Tc=0 to 100°CVIN=15V, Io=0.2A, Tc=0 to 100°C
83
83
VIN=15V, Io=2A
VIN=15V, Io=2A
270
300
330
270
300
330
VIN=15V, Io=2A
VIN=15V, Io=2A
80
80
VIN=10 to 30V, Io=2A
VIN=10 to 30V, Io=2A
50
50
VIN=15V, Io=0.2 to 3.5A
VIN=15V, Io=0.2 to 3.5A
3.6
3.6
VIN=15V
VIN=15V
0.5
630
VIN=15V, VSS=0V
––
0.8
––
2.0
––
6
100
Vc=2V
66
VIN=15V, Io=0A
VIN=15V, Io=0A
200
600
30
200
VIN=15V, Vss=0V
VIN=15V, Vc=2V
SI-8001FDE
SI-8001FDE
SS
5SS
5SS
C3
C3
5
VO.ON/OFF
Soft start
Soft start
+Vo. On/OFF
SI-8001FDE
Surface Mount, Separate Excitation Step-down Switching Mode
SI-8000FD Series
■Applications
• DVD recorder, FPD-TV
• OA equipment, such as printers
• Onboard local power supplies


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