DataSheet26.com

SI-8050TFE PDF даташит

Спецификация SI-8050TFE изготовлена ​​​​«Sanken» и имеет функцию, называемую «DC-to-DC Step-Down Converter».

Детали детали

Номер произв SI-8050TFE
Описание DC-to-DC Step-Down Converter
Производители Sanken
логотип Sanken логотип 

10 Pages
scroll

No Preview Available !

SI-8050TFE Даташит, Описание, Даташиты
SI-8050TFE
DC-to-DC Step-Down Converter
Features and Benefits
1.5 A output current supplied in a small, through-hole
mount power package
High efficiency: 81% at VIN= 15 V, IO= 0.5 A,VO= 5 V
Requires only four external components (optional soft
start requires an additional capacitor)
Oscillation circuit built-in (frequency 300 kHz typical)
Constant-current mode overcurrent protection circuit and
overtemperature protection circuit built-in
Soft start function built-in (can be implemented as an
on/off function; output-off state at low level)
Low current consumption during output-off state
Package: TO220F-5
Description
The SI-8050TFE DC voltage regulator is a DC-to-DC buck
convertor that attains an oscillation frequency of 300 kHz,
and has an integrated miniaturized choke coil, allowing it to
serve as a small, high efficiency power supply in a compact
TO220F package.
The internal switching regulator function provides high
efficiency switching regulation without any need for adjustment.
The device requires only six external support components. The
optional soft start function requires an additional capacitor.
Optional on/off control can be performed using a transistor.
The SI-8050TFE includes overcurrent and overtemperature
protection circuits.
Applications include:
DVD recorder
FPD TV
Telecommunications equipment
Office automation equipment, such as printers
On-board local power supply
Output voltage regulator for second stage of SMPS
(switched mode power supply)
Not to scale
Functional Block Diagram
VIN 1 IN
C1
PReg
Overcurrent
Protection
SW 2
L1
Di
RK16
(Sanken)
5 SS
On/Off
Soft Start
C3
Reset
Osc
Comparator
Error
Amplifier
Latch and
Driver
VOS 4
Overtemperature
Protection
GND
3
Reference
Voltage
27469.063
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp/en/
VOUT
C2









No Preview Available !

SI-8050TFE Даташит, Описание, Даташиты
SI-8050TFE
Selection Guide
Part Number
SI-8050TFE
Efficiency,
Typ.
(%)
81
DC-to-DC Step-Down Converter
Input Voltage,
Max.
(V)
40
Output Current,
Max.
(A)
1.5
Packing
50 pieces per tube
Absolute Maximum Ratings
Characteristic
DC Input Voltage
Power Dissipation
Junction Temperature
Storage Temperature
Thermal Resistance (junction-to-case)
Thermal Resistance (junction-to-ambient air)
Symbol
VIN
PD1-1
PD1-2
PD2-1
PD2-2
TJ
Tstg
RJC
RJA
Remarks
Connected to infinite heatsink; TJ(max) = 150°C, limited by internal
overtemperature protection.
Connected to infinite heatsink; TJ = 125°C.
No heatsink; TJ(max) = 150°C, limited by internal overtemperature
protection.
No heatsink; TJ = 125°C.
Internal overtemperature protection circuit may enable when TJ
130°C. During product operation, recommended TJ 125°C.
Rating
43
Units
V
17.8 W
14.2 W
2.15 W
1.72 W
–30 to 150 °C
–40 to 150
7
58
°C
°C/W
°C/W
Recommended Operating Conditions*
Characteristic
Symbol
Remarks
DC Input Voltage Range
VIN VIN (min) is the greater of 4.5 V or VO+3 V.
DC Output Voltage Range
DC Output Current Range
VO
VIN VO + 3 V; to be used within the allowable package
IO power dissipation characteristics (refer to Power Dissipation
chart).
Operating Junction Temperature Range
TJOP
Operating Temperature Range
TOP
To be used within the allowable package power dissipation
characteristics (refer to Power Dissipation chart).
*Required for normal device functioning according to Electrical Characteristics table.
Min.
See
remarks
0.8
0
–30
–30
Max.
40
24
3.5
100
85
Units
V
V
A
°C
°C
All performance characteristics given are typical values for circuit or
system baseline design only and are at the nominal operating voltage and
an ambient temperature, TA, of 25°C, unless otherwise stated.
27469.063
SANKEN ELECTRIC CO., LTD.
2









No Preview Available !

SI-8050TFE Даташит, Описание, Даташиты
SI-8050TFE
DC-to-DC Step-Down Converter
ELECTRICAL CHARACTERISTICS, valid at TA = 25°C
Characteristic
Symbol
Test Conditions
Output Voltage
Output Voltage Temperature Coefficient
VO VIN = 15 V, IO = 0.1 A
VO/T VIN = 15 V, IO = 0.1 A, TC = 0 to 100 °C
Efficiency*
VIN = 15 V, IO = 0.5 A
Operating Frequency
fO VIN = 15 V, IO = 0.5 A
Line Regulation
VLine VIN = 10 to 30 V, IO = 0.5 A
Load Regulation
VLoad VIN = 15 V, IO = 0.2 to 1.5 A
Overcurrent Protection Threshold Current
IS VIN = 15 V
SS Terminal On/Off Operation Threshold Voltage
VSSL
SS Terminal On/Off Operation Outflow Current
ISSL VSSL = 0 V
Quiescent Current 1
Iq VIN = 15 V, IO = 0 A
Quiescent Current 2
Iq(off)
*Efficiency is calculated as: (%) = ([VO × IO] × [VIN × IIN]) × 100.
VIN = 15 V, VSS = 0 V
Min.
4.9
1.6
Typ.
5.00
±0.5
81
300
60
10
10
6
200
Max.
5.10
80
40
0.5
40
400
Units
V
mV/°C
%
kHz
mV
mV
A
V
A
mA
A
Pin-out Diagram
123 45
Terminal List Table
Name Number
Function
IN 1 Supply voltage
SW 2 Regulated supply output
GND
3 Ground terminal
VOS
4 Terminal for output sense
The SS terminal is used to enable soft start and to control on/off operation of the IC output,
VO (see figure 2). If neither soft start nor on/off control is used, leave pin open.
To enable soft start, connect a capacitor between SS and ground. To control on/off
operation, connect an NPN bipolar transistor, in a TTL open collector output configuration,
SS
5
between the SS terminal and GND. Turn off is done by decreasing VSSL below its rated
level.
When both soft start and VO on/off are used, a protection measure such as current limiting
is required because, if the capacitance of C3 large, the discharge current of C3 flows
across the transistor for on/off operation. Because a pull-up type resistor is provided inside
the IC, no external voltage can be applied.
System
TTL
SI-8050TFE
SS
5
SI-8050TFE
SS
5
C3
System
TTL
SI-8050TFE
SS
5
C3
(a)
VO on/off
control only
(b)
Soft start
only
(c)
VO on/off and
soft start control
Figure 2. Alternative configurations for SS pin. If neither soft start nor VO on/off is required, the SS pin is left open.
27469.063
SANKEN ELECTRIC CO., LTD.
3










Скачать PDF:

[ SI-8050TFE.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
SI-8050TFESeparate Excitation Step-down Switching ModeETC
ETC
SI-8050TFEDC-to-DC Step-Down ConverterSanken
Sanken

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск