SI-8000E_11 Datasheet, PDF (1/2 Pages) Sanken electric – Full-Mold, Separate Excitation Step-down Switching Mode

1-1-3 DC/DC Converter ICs
SI-8000E Series Full-Mold, Separate Excitation Step-down Switching Mode
■Features
• Compact full-mold package (equivalent to
TO220)
• High efficiency: 80%
• Requires only 4 discrete components
• Internally-adjusted phase correction and output
voltage
• Built-in reference oscillator (60kHz)
• Built-in overcurrent and thermal protection
circuits
■Applications
• Power supplies for telecommunication
equipment
■Lineup
Part Number
VO(V)
IO(A)
■Absolute Maximum Ratings
Parameter
DC Input Voltage
Power Dissipation
Junction Temperature
Storage Temperature
Thermal Resistance(junction to case)
Thermal Resistance(junction to ambient air)
Symbol
VIN
PD1
PD2
Tj
Tstg
θ j-c
θ j-a
• Onboard local power supplies
SI-8050E
5.0
0.6
Ratings
43
14(With infinite heatsink)
1.5(Without heatsink, stand-alone operation)
+125
–40 to +125
7.0
66.7
■Recommended Operating Conditions
Parameter
DC Input Voltage Range
Output Current Range
Operating Junction Temperature Range
Operating Temperature Range
Symbol
VIN
IO
Tjop
Top
Ratings
SI-8050E
7 to 40
0 to 0.6
–30 to +125
–30 to +125
■Electrical Characteristics
Parameter
Symbol
min.
Output Voltage
VO
4.80
Conditions
Efficiency
η
Conditions
Oscillation Frequency
f
Conditions
Line Regulation
∆VOLINE
Conditions
Load Regulation
∆VOLOAD
Conditions
Temperature Coefficient of Output Voltage
∆VO/∆Ta
Overcurrent Protection Starting
IS1
0.61
Current
Conditions
Ratings
SI-8050E
typ.
5.00
VIN=20V, IO=0.3A
80
VIN=20V, IO=0.3A
60
VIN=20V, IO=0.3A
80
VIN=10 to 30V, IO=0.3A
30
VIN=20V, IO=0.1 to 0.4A
±0.5
VIN=10V
max.
5.20
100
40
Unit
V
W
W
°C
°C
°C/W
°C/W
Unit
V
A
°C
°C
(Ta=25°C)
Unit
V
%
kHZ
mV
mV
mV/ °C
A
32 ICs