Document
qSI-8400L/8500L Series
SI-8400L/8500L Series
Separate Excitation Switching Type with Coil
sFeatures
• • • • • • 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
sApplications
• Telephone power supplies • Onboard local power supplies
sLineup
Part Number VO(V) IO(A) SI-8401L 5.0 0.5 SI-8402L 12.0 0.4 SI-8403L 3.3 0.5 SI-8405L 15.0 0.4 SI-8501L 5.0 SI-8502L 12.0 SI-8503L 3.3 1.0 SI-8504L 9.0 SI-8505L 15.0
sAbsolute Maximum Ratings
Parameter DC Input Voltage Power Dissipation Junction Temperature Storage Temperature Symbol SI-8400L VIN PD Tj Tstg 1.25 +100 –25 to +85 35 3 Ratings SI-8500L V W °C °C Unit
sRecommended Operating Conditions
Parameter DC Input Voltage Range Output Current Range Operating Temperature Range Symbol SI-8401L VIN IO Top 7 to 33 0 to 0.5 15 to 33 0 to 0.4 Ratings SI-8402L SI-8403L 5.3 to 33 0 to 0.5 SI-8405L 18 to 33 0 to 0.4 V A °C Unit
–20 to +85
Parameter DC Input Voltage Range Output Current Range Operating Temperature Range
Symbol SI-8501L VIN IO Top 7 to 33 SI-8502L 15 to 33
Ratings SI-8503L 5.3 to 33 0 to 1.0 –20 to +85 SI-8504L 12 to 33 SI-8505L 18 to 33
Unit V A °C
96
qSI-8400L/8500L Series
sElectrical Characteristics
Ratings Parameter Symbol min. Output Voltage Efficiency Switching Frequency Line Regulation Load Regulation Temperature Coefficient of Output Voltage Switching Ripple Voltage (C2=470µF) Overcurrent Protection Starting Current VO Conditions η Conditions f Conditions ∆VOLINE Conditions ∆VOLOAD Conditions ∆VO/∆Ta ∆Vr Conditions IS1 Conditions 0.55 VIN=10V 4.80 SI-8401L typ. 5.00 80 VIN=20V, IO=0.3A 60 VIN=20V, IO=0.3A 80 30 ±0.5 20 40 0.45 VIN=18V VIN=20V, IO=0.3A 100 40 VIN=10 to 30V, IO=0.3A VIN=20V, IO=0.1 to 0.4A max. 5.20 min. 11.40 SI-8402L typ. 12.00 88 VIN=24V, IO=0.3A 60 VIN=24V, IO=0.3A 100 70 ±1.5 35 70 0.55 VIN=8V VIN=24V, IO=0.3A 130 95 VIN=18 to 30V, IO=0.3A VIN=24V, IO=0.1 to 0.4A max. 12.60 min. 3.17 SI-8403L typ. 3.30 75 VIN=15V, IO=0.3A 60 VIN=15V, IO=0.3A 60 20 ±0.5 15 30 0.45 VIN=21V VIN=15V, IO=0.3A 80 30 VIN=8 to 30V, IO=0.3A VIN=15V, IO=0.1 to 0.4A max. 3.43 min. 14.25 SI-8405L typ. 15.00 89 VIN=27V, IO=0.3A 60 VIN=27V, IO=0.3A 100 90 ± 1.5 40 80 VIN=27V, IO=0.3A 130 120 max. 15.75
(Ta=25°C)
Unit
V % kHZ mV mV mV/ °C mVp-p A
VIN=20V, IO=0.3A
VIN=24V, IO=0.3A
VIN=15V, IO=0.3A
VIN=27V, IO=0.3A
VIN=21 to 30V, IO=0.3A VIN=27V, IO=0.1 to 0.4A
(Ta=25°C)
Ratings Parameter Symbol VO Conditions Efficiency Switching Frequency Line Regulation Load Regulation Temperature Coefficient of Output Voltage Switching Ripple Voltage (C2=470µF) Overcurrent Protection Starting Current η Conditions f Conditions ∆VOLINE Conditions ∆VOLOAD Conditions ∆VO/∆Ta ∆Vr Conditions IS1 Conditions 1.1 VIN=18V 4.80 SI-8501L min. Output Voltage 5.00 83 VIN=20V, IO=0.5A 60 VIN=20V, IO=0.5A 70 30 ± 0.5 45 VIN=20V, IO=0.5A 1.1 VIN=24V 130 55 VIN=10 to 30V, IO=0.5A VIN=20V, IO=0.2 to 0.8A 5.20 SI-8502L 11.40 12.00 12.60 VIN=24V, IO=0.5A 89 VIN=24V, IO=0.5A 60 VIN=24V, IO=0.5A 70 30 ± 1.5 30 VIN=24V, IO=0.5A 1.1 VIN=12V 130 55 VIN=18 to 30V, IO=0.5A VIN=24V, IO=0.2 to 0.8A 3.17 SI-8503L 3.30 79 VIN=15V, IO=0.5A 60 VIN=15V, IO=0.5A 50 20 ±0.5 15 VIN=15V, IO=0.5A 1.1 VIN=21V 80 45 VIN=8 to 30V, IO=0.5A VIN=15V, IO=0.2 to 0.8A 3.43 8.55 SI-8504L 9.00 87 VIN=21V, IO=0.5A 60 VIN=21V, IO=0.5A 70 30 ±1.0 25 VIN=21V, IO=0.5A 1.1 VIN=25V 130 55 VIN=15 to 30V, IO=0.5A VIN=21V, IO=0.2 to 0.8A 9.45 SI-8505L typ. max. V % kHZ 130 55 mV mV mV/ °C mVp-p A 14.25 15.00 15.75 VIN=25V, IO=0.5A 90 VIN=25V, IO=0.5A 60 VIN=25V, IO=0.5A 70 30 ±1.5 30 VIN=25V, IO=0.5A VIN=21 to 30V, IO=0.5A VIN=25V, IO=0.2 to 0.8A Unit typ. max. min. typ. max. min. typ. max. min. typ. max. min.
VIN=20V, IO=0.5A
VIN=15V, IO=0.5A
VIN=21V, IO=0.5A
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qSI-8400L/8500L Series
sOutline Drawing
SI-8400L
VIN y
VIN r e LIN
(unit:mm)
SI-8500L
LIN r
a b
Vo q 14.5±0.5
w GND
a. Part Number b. Lot Number Open Air Type Weight: Approx. 5.1g
a
b
SK
a. Part Number b. Lot Number Open Air Type Weight: Approx. 14.5g
±0.5
Terminal 1 marking
±0.2
13.2
q w e VOUT SS GND ±0.1 26
±0.6
10
φ 0.6
4
3.7
18
(2.17)
(10.16)
4.7
φ 0.8max.
±0.6
,, ,, ,, ,, ,, ,, , ,,,,
Terminal 1 marking
(7.62)
(2.19)
26±0.1
12
18
2
sBlock Diagram
SI-8400L
3 4 VIN Reg. OSC Reset OCP Latch & Drive TSD Di1 Amp.
Amp.
SI-8500L
LIN L1 1 VO
6 VIN Reg. OSC Reset OCP Latch & Drive TSD Di1 MIC1
4
LIN L1 1 VO
MIC1
Comp.
Comp.
VREF
VREF
2
GND
2
S.S.
3
GND
sStandard External Circuit
VIN
4 + C1 220µF
VIN
SI-8400L GND 2
VOUT LIN 3 N.C
1 +
VO
VIN
6 + C1 470µF
VIN S.S 2 C3
SI-8500L
VOUT
1 +
VO
C2 470µF GND
GND LIN 3 4 N.C
C2 470µF GND
GND
GND
Pin compatible with SI-8200L
C3 is necessary only for using soft start function. Pin compatible with SI-8300L
98
qSI-8400L/8500L Series
sTa-PD Characteristics
1..