Sanken Electric Co SI-8404L Datasheet
33
Ratings
Parameter Symbol
SI-8401L SL-8402L SI-8403L SI-8404L SI-8405L SI-8406L
Unit
DC Input Voltage Range V
IN 7 to 33 15 to 33 5.3 to 33 16 to 33 18 to 33 10 to 33 V
Output Current Range I
O 0 to 0.5 0 to 0.4 0 to 0.5 0 to 0.4 0 to 0.4 0 to 0.4 A
Operating Temperature Range
Top –20 to +85 °C
SI-8400L/8500L
Series
Features
● Integrated switching IC and coil construction
● Requires only 2 external components
● Low switching noise
● Heatsink not required
● Built-in overcurrent and thermal protection circuits
● Pin compatible with SI-8200L/8300L, providing
easy replacement
● Built-in soft start and ON/OFF circuit (8500L
Series)
Applications
● For power supplies in telephone sets
● For power supplies in office equipment
External View
■Lineup
SI-8400L Series SI-8500L Series
Type No. VO(V) IO(A) Type No. VO(V) IO(A)
SI-8401L 5 0.5 SI-8501L 5
SI-8402L 12 0.4 SI-8502L 12
SI-8403L 3.3 0.5 SI-8503L 3.3 1
SI-8404L 13 0.4 SI-8504L 9
SI-8405L 15 0.4 SI-8505L 15
SI-8406L 8 0.4
■Recommended Operating Conditions
SI-8400L Series
Switching Type
Separate Excitation Type with Coil
■Absolute Maximum Ratings
Ratings
Parameter Symbol
SI-8501L SL-8502L SI-8503L SI-8504L SI-8505L
Unit
DC Input Voltage Range V
IN 7 to 33 15 to 33 5.3 to 33 12 to 33 18 to 33 V
Output Current Range I
O 0 to 1 A
Operating Temperature Range
Top –20 to +85 °C
Ratings
Parameter Symbol
SI-8400L SL-8500L
Unit
DC Input Voltage Range VIN 35 35 V
Power Dissipation P
D 1.25 3 W
Junction Temperature
Tj +100 +100 °C
Storage Temperature Tstg –25 to +85 –25 to +85 °C
SI-8500L Series
34
Output Voltage V
Efficiency %
Switching Frequency kHz
Line Regulation mV
Load Regulation mV
mV/°C
mV
P-P
A
Ratings
SI-8400L Series
Parameter Symbol
SI-8401L SI-8402L SI-8403L SI-8404L SI-8405L SI-8406L
Unit
min typ max min typ max min typ max min typ max min typ max min typ max
V
O
4.80 5.00 5.20 11.40 12.00 12.60 3.17 3.30 3.43 12.35 13.00 13.65 14.25 15.00 15.75 7.60 8.00 8.40
Condition VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=25V, IO=0.3A VIN=27V, IO=0.3A VIN=20V, IO=0.3A
η
80 88 75 88 89 85
Condition VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=25V, IO=0.3A VIN=27V, IO=0.3A VIN=20V, IO=0.3A
f
60 60 60 60 60 60
Condition VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=25V, IO=0.3A VIN=27V, IO=0.3A VIN=20V, IO=0.3A
∆V
OLINE
80 100 100 130 60 80 100 130 100 130 85 105
Condition
VIN=10 to 30V, IO=0.3A VIN=18 to 30V, IO=0.3A VIN=8 to 30V, IO=0.3A VIN=19 to 30V, IO=0.3A VIN=21 to 30V, IO=0.3A VIN=13 to 30V, IO=0.3A
∆V
OLOAD
30 40 70 95 20 30 75 100 90 120 40 70
Condition
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=25V, IO=0.1 to 0.4A VIN=25V, IO=0.1 to 0.4A VIN=21V, IO=0.1 to 0.4A
Temperature Coefficient
∆Vo/∆T
±0.5 ±1.5 ±0.5 ±1.5 ±1.5 ±1.0
of Output Voltage
Switching Ripple Voltage ∆Vr
20 40 35 70 15 30 30 60 40 80 25 50
(C2=470µF)
Condition VIN=20V, IO=0.3A VIN=24V, IO=0.3A VIN=15V, IO=0.3A VIN=25V, IO=0.3A VIN=27V, IO=0.3A VIN=20V, IO=0.3A
Overcurrent Protection I
S
0.55 0.45 0.55 0.45 0.45 0.45
Starting Current
Condition
VIN=10V VIN=18V VIN=8V VIN=19V VIN=21V VIN=20V
Output Voltage V
Efficiency %
Switching Frequency kHz
Line Regulation mV
Load Regulation mV
mV/°C
mV
p-p
A
Ratings
Parameter
Symbol
SI-8500L Series
Unit
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
V
O
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
Condition
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
η
83 89 79 87 90
Condition
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
f
60 60 60 60 60
Condition
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
∆VOLINE
70 130 70 130 50 80 70 130 70 130
Condition 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
∆V
OLOAD
30 55 30 55 20 45 30 55 30 55
Condition
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 VIN=21V, IO=0.2 to 0.8A
Temperature Coefficient
∆VO/
∆T
±0.5 ±1.5 ±0.5 ±1.0 ±1.5
of Output Voltage
Switching Ripple Voltage
∆Vr
45 30 15 25 30
(C2=470µF)
Condition
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
Overcurrent Protection
I
S
1.1 1.1 1.1 1.1 1.1
Starting Current
Condition
VIN=18V VIN=24V VIN=12V VIN=21V VIN=25V
■Electrical Characteristics (Ta=25°C)
SI-8400L/8500L
Series
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