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SI-8050HFE 数据表(PDF) 1 Page - Sanken electric

部件名 SI-8050HFE
功能描述  Full-Mold, 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-8050HFE 数据表(HTML) 1 Page - Sanken electric

  SI-8050HFE Datasheet HTML 1Page - Sanken electric SI-8050HFE Datasheet HTML 2Page - Sanken electric  
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52
ICs
1-1-3 DC/DC Converter ICs
■Lineup
Part Number
SI-8008HFE
SI-8050HFE
VO (V)
Variable (0.8 to 15)
5
IO (A)
5.5
■Absolute Maximum Ratings
Unit
V
W
°C
°C
°C/W
°C/W
Ratings
43
25 (with infinite heatsink)
20 (with infinite heatsink)
2.15 (without heat sink, standalone operation)
1.72 (without heatsink, standalone operation)
+150
–40 to +150
5
58
Symbol
VIN
PD1-1
PD1-2
PD2-1
PD2-2
Tj
Tstg
θj-c
θj-a
Parameter
DC Input Voltage
Power Dissipation
Junction Temperature*
Storage Temperature
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient Air)
■Recommended Operating Conditions
■Features
• Compact full-mold package (equivalent to
TO220)
• Output current: 5.5 A
• High efficiency: 83% typ. (at Vo = 5 V)
• Requires only 4 discrete components
• Built-in reference oscillator (150 kHz)
• Built-in drooping-type-overcurrent and
thermal protection circuits
• Built-in soft start circuit (Output ON/OFF
available)
(Ta=25°C)
Full-Mold, Separate Excitation Step-down Switching Mode
SI-8000HFE Series
■Applications
• Onboard local power supplies
•OA equipment
Conditions
Limited by thermal protection, Tjmax=150°C
Tjmax=125°C
Limited by thermal protection, Tjmax=150°C
Tjmax=125°C
*: This product has built-in thermal protection circuits that may operate when the junction temperature rises above 130°C.
The recommended design for the junction temperature during 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
Unit
V
V
A
°C
°C
Ratings
SI-8008HFE
SI-8050HFE
Vo+3*1 to 40
8 to 40
0.8 to 24
5.0
0 to 5.5
–30 to +125
–30 to +85
*1: The minimum value of an input voltage range is the higher of 4.5 V or VO + 3 V.
■Electrical Characteristics
SI-8008HFE (at Vo = 5 V)
SI-8050HFE
min.
0.784
5.6
5.6
typ.
0.800
VIN=15V, Io=1A
max.
0.816
50
min.
4.90
typ.
5.00
VIN=15V, Io=1A
±0.5
VIN=15V, Io=1A, Tc=0 to 100
°C
83
VIN=15V, Io=3A
max.
5.10
Vo
VADJ
∆VOLOAD
±0.1
VIN=15V, Io=1A, Tc=0 to 100
°C
83
VIN=15V, Io=3A
∆Vo/∆T
∆VADJ/∆T
η
10
VSSL=0V
10
VSSL=0V
0.5
30
0.5
30
20
VIN=15V, Io=0.2 to 5.5A
20
VIN=15V, Io=0.2 to 5.5A
150
VIN=15V, Io=3A
150
VIN=15V, Io=3A
fo
60
VIN=10 to 30V, Io=3A
80
60
VIN=10 to 30V, Io=3A
80
50
∆VOLINE
6
VIN=15V, Io=0A
6
VIN=15V, Io=0A
VIN=15V
VIN=15V
Iq
200
VIN=15V, VSS=0V
200
VIN=15V, VSS=0V
400
400
Iq(OFF)
Low Level Voltage
Outflow Current at
Low Voltage
VSSL
ISSL
IS
V
mV/
°C
%
kHz
mV
mV
A
V
µA
mA
µA
Parameter
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Symbol
Unit
Ratings
Ratings
Output Voltage
Reference Voltage
Efficiency
Oscillation Frequency
Line Regulation
Quiescent Circuit Current
Load Regulation
Overcurrent Protection
Starting Current
ON/OFF Pin*
Temperature Coefficient of Output Voltage
Temperature Coefficient of Reference Voltage
(Ta=25°C)
*: 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 cur-
rent securely to protect the transistor if C3 capacitance is large. The SS pin is pulled up to the
power supply in the IC, so applying the external voltage is prohibited. If the pin is not used,
leave it open.
SI-8000HFE
SI-8000HFE
SS
5SS
5SS
C3
C3
5
VOUT. ON/OFF
Soft start
Soft start
+VOUT. ON/OFF
SI-8000HFE


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