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SI-8001FDE PDF даташит

Спецификация SI-8001FDE изготовлена ​​​​«ETC» и имеет функцию, называемую «Separate Excitation Step-down Switching Mode».

Детали детали

Номер произв SI-8001FDE
Описание Separate Excitation Step-down Switching Mode
Производители ETC
логотип ETC логотип 

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SI-8001FDE Даташит, Описание, Даташиты
1-1-3 DC/DC Converter ICs
SI-8000FD Series Surface Mount, Separate Excitation Step-down Switching Mode
Features
• Surface-mount package (TO263-5)
• Output current: 3.5 A
• High efficiency: 83% (Vo = 5 V, VIN = 15 V, Io = 2 A)
• Requires only 6 discrete components
• Built-in reference oscillator (300 kHz)
• Built-in drooping-type overcurrent and thermal
protection circuits
• Built-in soft start circuit (Output ON/OFF
available)
- SI-8001FDE
• Built-in on/off function (active Low)
- SI-8001FDL
• Low current consumption during off
- SI-8001FDL
Applications
• DVD recorder, FPD-TV
• OA equipment, such as printers
• Onboard local power supplies
Lineup
Part Number
VO(V)
IO(A)
Function
SI-8001FDE
Soft start
Variable(0.8 to 24)
3.5
SI-8001FDL
ON/OFF
Absolute Maximum Ratings
Parameter
Ratings
Symbol
SI-8001FDE SI-8001FDL
Unit
Conditions
Input Voltage
ON/OFF Control Voltage
Power Dissipation*1
Junction Temperature*2
Storage Temperature
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient Air)
VIN
Vc
PD
Tj
Tstg
θj-c
θj-a
43
– VIN
3
+150
–40 to +150
3*1
33.3*1
V
V
W
°C
°C
°C/W
°C/W
When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%)
When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%)
When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%)
*1 : Limited by thermal protection circuit
*2 : This product has built-in thermal protection circuits that may activate when the junction temperature exceeds 130°C.
The recommended design for the junction temperature during IC operation is below 125°C.
Recommended Operating Conditions
Parameter
Symbol
SI-8001FDE
Input Voltage Range
Output Voltage Range
Output Current Range
Operating Junction Temperature Range
Operating Temperature Range
*1: The minimum value of the input voltage range is 4.5 V or Vo + 3 V, whichever is higher.
Ratings
Vo+3*1 to 40
0.8 to 24
0 to 3.5
–30 to +100
–30 to +85
SI-8050FDL
Unit
V
V
A
°C
°C
Electrical Characteristics
(R1=4.2k, R2=0.8kwhen Ta = 25°C and Vo=5V)
Parameter
Symbol
Reference Voltage
Temperature Coefficient of Reference Voltage
Efficiency
Oscillation Frequency
Line Regulation
Load Regulation
Overcurrent Protection Starting Current
SS Pin*1
ON/OFF Pin*2
Low Level Voltage
Outflow Cuurent
at Low Voltage
ON/OFF Control Voltage (Output on)
ON/OFF Control Voltage (Output off)
ON/OFF Controll Current (Output on)
Quiescent Circuit Current
VADJ
Conditions
VADJ/T
Conditions
η
Conditions
fO
Conditions
VOLINE
Conditions
VOLOAD
Conditions
IS
Conditions
VSSL
ISSL
Conditions
Vc, IH
Vc, IL
Ic, IH
Conditions
Iq
Conditions
Iq(OFF)
Conditions
SI–8001FDE
min. typ. max.
0.784
0.800
0.816
VIN=15V, Io=0.2A
±0.1
VIN=15V, Io=0.2A, Tc=0 to 100°C
83
VIN=15V, Io=2A
270 300 330
VIN=15V, Io=2A
80
VIN=10 to 30V, Io=2A
50
VIN=15V, Io=0.2 to 3.5A
3.6
VIN=15V
0.5
6 30
VIN=15V, VSS=0V
–––
–––
–––
6
VIN=15V, Io=0A
200 600
VIN=15V, Vss=0V
Ratings
min.
0.784
270
3.6
2.0
SI–8001FDL
typ. max.
0.800
0.816
VIN=15V, Io=0.2A
±0.1
VIN=15V, Io=0.2A, Tc=0 to 100°C
83
VIN=15V, Io=2A
300 330
VIN=15V, Io=2A
80
VIN=10 to 30V, Io=2A
50
VIN=15V, Io=0.2 to 3.5A
VIN=15V
0.8
6
Vc=2V
6
VIN=15V, Io=0A
30
VIN=15V, Vc=2V
100
200
Unit
V
mV/ °C
%
kHz
mV
mV
A
V
µA
V
V
µA
mA
µA
*1: Pin 5 is the SS pin. Soft start at power on can be performed with a capacitor connected to
this pin. The output can also be turned ON/OFF with this pin. The output is stopped by
setting the voltage of this pin to VSSL or lower. SS-pin voltage can be changed with an
open-collector drive circuit of a transistor. When using both the soft-start and ON/OFF
functions together, the discharge current from C3 flows into the ON/OFF control transistor.
Therefore, limit the current securely to protect the transistor if C3 capacitance is large. The
SS pin is pulled up (3.7 V typ.) to the power supply in the IC, so applying the external
voltage is prohibited. If this pin is not used, leave it open.
*2: Output is OFF when the output control terminal VC is open. Each input level is equivalent to
LS-TTL. Therefore, the device can be driven directly by LS-TTLs.
SI-8001FDE
5 SS
SI-8001FDE
5 SS
C3
SI-8001FDE
5 SS
C3
32 ICs
VO.ON/OFF
Soft start
Soft start
+Vo. On/OFF









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SI-8001FDE Даташит, Описание, Даташиты
SI-8000FD Series
External Dimensions (TO263-5)
(15°)
φ1.5 Dp:±0.2
Case temperature
measurement point
3-R0.3
4.5±0.2
1.3
+0.10
–0.05
(3°)
10.0±0.2
(8.0)
(4.4)
(2×R0.45)
0.88±0.10
(1.7±0.25)
1
2
(3°)
0.8±0.1
(1.7±0.25)
345
9.9±0.2
(3°)
2-R0.3
10.0±0.02
(3°)
(R0.3)
0.10±0.15
(3°)
2.4±0.2
(R0.3)
0 to 6°
(0.5)
(1.7±0.25)
0.8±0.1
(1.7±0.25)
(Unit : mm)
Pin Assignment
1 IN
2 SW
3 GND (Common to the rear side of the
product)
4 VADJ
5 SS or Vc
Plastic Mold Package Type
Flammability: UL 94V-0
Product Mass: Approx. 1.48g
Block Diagram
SI-8001FDE
SI-8001FDL
1 IN
SW 2
5 SS
PReg.
OCP
ON/OFF
Soft
start
Reset
OSC
+
Comp.
Error Amp.
+
+
Latch &
Drive
TSD
GND
3
VREF
VADJ
4
Typical Connection Diagram
1 VIN
5 VC
PReg.
ON/OFF
Reset
OSC
OCP
Comp.
Error Amp.
SW 2
Latch &
Drive
TSD
ADJ
4
GND
3
VREF
VIN
C1
GND
1
IN
SW 2
L1
VOUT
SI-8000FDE
R1
ADJ 4
+ SS GND
R2
+
C2
53
Di IADJ
C3
GND
C1 : 470µF
C2 : 680µF
C3 : 0.1µ (Only when using soft-start function)
L1 : 47µH
Di : SPB-G56S (Sanken)
VIN
C1
1
IN
SW 2
L1
VOUT
SI-8001FDL
R1
ADJ 4
+ Vc GND
R2
+
C2
53
Di IADJ
GND
GND
C1 : 470µF
C2 : 680µF
L1 : 47µH
Di : SPB-G56S (Sanken)
ICs 33










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