Sanken Electric Co SI-8405L Datasheet
●SI-8400L/8500L Series
SI-8400L/8500L Series
Separate Excitation Switching Type with Coil
■Features
• Integrated switching IC and coil construction
• Requires 2 external components only
• Low switching noise
• Heatsink not required
• Built-in overcurrent and thermal protection circuits
• Built-in soft start circuit (Output ON/OFF control)...SI-8500L Series
■Applications
• Telephone power supplies
• Onboard local power supplies
■Lineup
Part Number SI-8401L SI-8402L SI-8403L SI-8405L SI-8501L SI-8502L SI-8503L SI-8504L SI-8505L
VO(V) 5.0 12.0 3.3 15.0 5.0 12.0 3.3 9.0 15.0
IO(A) 0.5 0.4 0.5 0.4 1.0
■Absolute Maximum Ratings
Parameter
DC Input Voltage
Power Dissipation
Junction Temperature
Storage T emperature
Symbol
VIN
PD
Tj
Tstg
SI-8400L SI-8500L
1.25 3
Ratings
35
+100
–25 to +85
Unit
V
W
°C
°C
■Recommended Operating Conditions
Parameter
DC Input Voltage Range
Output Current Range
Operating Temperature Range
Parameter
DC Input Voltage Range
Output Current Range
Operating Temperature Range
Symbol
VIN
IO
Top
Symbol
VIN
IO
Top
Ratings
SI-8401L SI-8402L SI-8403L SI-8405L
7 to 33 15 to 33 5.3 to 33 18 to 33
0 to 0.5 0 to 0.4 0 to 0.5 0 to 0.4
–20 to +85
Ratings
SI-8501L SI-8502L SI-8503L SI-8504L SI-8505L
7 to 33 15 to 33 5.3 to 33 12 to 33 18 to 33
0 to 1.0
–20 to +85
Unit
V
A
°C
Unit
V
A
°C
96
●SI-8400L/8500L Series
■Electrical Characteristics
Parameter
Output Voltage
Efficiency
Switching Frequency
Line Regulation
Load Regulation
Temperature Coefficient of Output Voltage
Switching Ripple
Voltage (C2=470µF)
Overcurrent Protection
Starting Current
Parameter
Output Voltage
Efficiency
Switching Frequency
Line Regulation
Load Regulation
Temperature Coefficient of Output Voltage
Switching Ripple
Voltage (C2=470µF)
Overcurrent Protection
Starting Current
Symbol
Conditions
Conditions
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
∆VO/∆Ta
∆Vr
Conditions
Conditions
Symbol
Conditions
Conditions
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
∆VO/∆Ta
∆Vr
Conditions
Conditions
VO
η
f
IS1
VO
η
f
IS1
Ratings
SI-8401L SI-8402L SI-8403L SI-8405L
min. typ. max. min. typ. max. min. typ. max. min. typ. max.
4.80 5.00 5.20 11.40 12.00 12.60 3.17 3.30 3.43 14.25 15.00 15.75
VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=27V, IO=0.3A
80 88 75 89
VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=27V, IO=0.3A
60 60 60 60
VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=27V, IO=0.3A
80 100 100 130 60 80 100 130
VIN=10 to 30V, IO=0.3A VIN=18 to 30V, IO=0.3A VIN=8 to 30V, IO=0.3A VIN=21 to 30V, IO=0.3A
30 40 70 95 20 30 90 120
VIN=20V, IO=0.1 to 0.4A VIN=24V, IO=0.1 to 0.4A VIN=15V, IO=0.1 to 0.4A VIN=27V, IO=0.1 to 0.4A
±0.5 ±1.5 ±0.5 ±1.5
20 40 35 70 15 30 40 80
VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=27V, IO=0.3A
0.55 0.45 0.55 0.45
VIN=10V VIN=18V VIN=8V VIN=21V
Ratings
SI-8501L SI-8502L SI-8503L SI-8504L SI-8505L
min. typ. max. min. typ. max. min. typ. max. min. typ. max. min. typ. max.
4.80 5.00 5.20 11.40 12.00 12.60 3.17 3.30 3.43 8.55 9.00 9.45 14.25 15.00 15.75
VIN=20V, IO=0.5A VIN=24V, IO=0.5A VIN=15V, IO=0.5A VIN=21V, IO=0.5A VIN=25V, IO=0.5A
83 89 79 87 90
VIN=20V, IO=0.5A VIN=24V, IO=0.5A VIN=15V, IO=0.5A VIN=21V, IO=0.5A VIN=25V, IO=0.5A
60 60 60 60 60
VIN=20V, IO=0.5A VIN=24V, IO=0.5A VIN=15V, IO=0.5A VIN=21V, IO=0.5A VIN=25V, IO=0.5A
70 130 70 130 50 80 70 130 70 130
VIN=10 to 30V, IO=0.5A VIN=18 to 30V, IO=0.5A VIN=8 to 30V, IO=0.5A VIN=15 to 30V, IO=0.5A VIN=21 to 30V, IO=0.5A
30 55 30 55 20 45 30 55 30 55
VIN=20V, IO=0.2 to 0.8A VIN=24V, IO=0.2 to 0.8A VIN=15V, IO=0.2 to 0.8A VIN=21V, IO=0.2 to 0.8A
±0.5 ±1.5 ±0.5 ±1.0 ±1.5
45 30 15 25 30
VIN=20V, IO=0.5A VIN=24V, IO=0.5A VIN=15V, IO=0.5A VIN=21V, IO=0.5A VIN=25V, IO=0.5A
1.1 1.1 1.1 1.1 1.1
VIN=18V VIN=24V VIN=12V VIN=21V VIN=25V
VIN=25V, IO=0.2 to 0.8A
(Ta=25°C)
Unit
V
%
kHZ
mV
mV
mV/°C
mVp-p
A
(Ta=25°C)
Unit
V
%
kHZ
mV
mV
mV/°C
mVp-p
A
97
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