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SI-8050JD 数据表(PDF) 2 Page - Sanken electric

部件名 SI-8050JD
功能描述  Surface-Mount Separate Excitation Step-down Switching Mode Regulator ICs
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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-8050JD 数据表(HTML) 2 Page - Sanken electric

  SI-8050JD Datasheet HTML 1Page - Sanken electric SI-8050JD Datasheet HTML 2Page - Sanken electric  
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47
ICs
SI-8000JD Series
■External Dimensions (TO263-5)
(Unit : mm)
Pin Assignment
q VIN
w SWOUT
e GND
r VOS
t ON/OFF
Plastic Mold Package Type
Flammability: 94V-0
Product Mass: Approx. 1.48g
9.90
±0.2
Case Temperature Measurement Point
(15
°)
(0.5)
2-R0.3
10.0
±0.02
3-R0.3
(2
×R0.45)
(R0.3)
(R0.3)
0.88
±0.10
1.5 Dp:
±0.2
φ
(1.7
±0.25
)
12345
(1.7
±0.25
)
(1.7
±0.25
)
(1.7
±0.25
)
0.8
±0.1
0.8
±0.1
4.5
±0.2
1.3
0.10
±0.15
2.4
±0.2
+0.10
–0.05
10.0
±0.2
(4.4)
(8.0)
(3
°)
(3
°)
(3
°)
(3
°)
(3
°)
0~6
°
■Block Diagram
■Typical Connection Diagram
4
3
GND
2
VIN
ON/OFF
SW OUT
1
5
PReg.
OCP
Reset
OSC
+
Comp.
Error Amp.
Latch &
Drive
TSD
ON/OFF
Soft
Start
VREF
+
VIN
C1
C3
Di
L1
C2
VIN
GND
ON/OFF
GND
SI-8000JD
SW
VS
12
4
3
5
+
+
VOUT
GND
C1: 50V/220
µF
C2: 25V/470
µF
C3: 10V/0.47
µF (Only when using soft-start function)
L1: 100
µH
Di : SJPB-H6 (Sanken)
■Reference Data
Copper Laminate Area on Glass Epoxy Board vs.
Thermal Resistance (Junction to Ambient Air) (Typical Value)
Output Current vs. Power Dissipation (Typical)
55
50
45
40
35
30
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
200
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
400
600
800
1000
Copper Laminate Area (mm2)
Output Current IO (A)
VIN 8V
20V
30V
40V
1200
1400
1600
1800
With glass epoxy board of 40
× 40 mm
■Ta-PD Characteristics
The efficiency depends on the input voltage and the output current. Therefore, obtain the value
from the efficiency graph and substitute the percentage in the formula above.
VO : Output Voltage
VIN : Input Voltage
IO : Output Current
ηχ : Efficiency (%)
VF :D1 forward voltage
0.4V(IO=2A)(SJPB-H6)
Thermal design for D1 must be considered separately.
3.5
3
2.5
2
1.5
1
0.5
0
–25
0
25
50
75
100
125
Ambient Temperature Ta (
°C)
Copper Area
40
×40 mm
( j-a : 33.3
°C/W)
20
×40 mm
( j-a : 37
°C/W)
20
×20 mm
( j-a :44
°C/W)
10
×10 mm
( j-a : 53
°C/W)
θ
θ
θ
θ
PD=VO·IO
100
–1 –VF·IO 1–
VO
ηχ
VIN


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