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Datasheet BR300 PDF ( 特性, スペック, ピン接続図 )

部品番号 BR300
部品説明 1 A Non-Isolated Step Down DC/DC Converter Module
メーカ Sanken
ロゴ Sanken ロゴ 
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BR300 Datasheet, BR300 PDF,ピン配置, 機能
BR300
5 V, 1 A Non-Isolated Step Down DC/DC Converter Module
Features and Benefits
Input voltage range 8 to 30 VDC
Circuit topology: step-down chopper
Switching frequency: 350 kHz
Output: 5 V, 1 A, 5 W
Module footprint: 14 × 14 × 10 mm (W × D × H)
Weight: 1.6 g
All in one
Design-free
High efficiency: 91% (typ) at VIN = 8 V, IO = 0.6 A
Miniaturizes space required, by using high-frequency
switching technology
Protection functions:
Overcurrent Protection function (OCP), with auto restart
Thermal Shutdown Protection function (TSD), with
auto restart
Package: Module
Description
The BR300 is non-isolated step down type DC/DC
converter module. The single module includes: a control IC,
inductor, ceramic capacitor, and standoff pins. This provides a
complete DC / DC converter solution, requiring few external
components. It can be configured easily, reducing overall
design time, allowing reuse of designs, and saving space on
the application PCB.
Applications:
• Factory Automation
• Communication devices
• Consumer electronics
• Other low power conversion
14 × 14 mm (11 mm height mounted)
VIN
8 to 30 V
BR300-DS, Rev. 1.0
Typical Application Circuit
4 VIN
VO 1
BR300
CIN
220 μF
GND
2
NC
3
Load
CO
Electrolytic 470 μF
or Ceramic 30 μF
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp/en/
September 11, 2012
Free Datasheet http://www.Datasheet4U.com

1 Page



BR300 pdf, ピン配列
BR300
5 V, 1 A Non-Isolated Step Down DC/DC Converter Module
Electrical Characteristics Unless specifically noted, TA is 25°C
Characteristic
Symbol
Test Conditions
Pins
Min.
Typ.
Max.
Unit
Input Current
Standby Power
IIN
PSTB
VIN = 24 V, IO = 1 A
VIN = 24 V, IO = 1 A
4-2 – 0.24 –
4-2 – 0.16 –
A
W
Output Voltage
VO
1-2 – 5.00 –
V
Constant Voltage Accuracy
Output Current
VACC
IO
1-2 3.0
3.0
%
1-2 0
– 1.0 A
Maximum Output Power
PO(MAX)
1-2 – – 5 W
Output Voltage Ripple*
VRIP
VIN = 24 V, IO = 1 A
1-2 – 50 – mVP-P
Output Voltage Noise*
VNOISE VIN = 24 V, IO = 1 A
1-2 – 50 – mVP-P
Output Overcurrent Protection
IOCP
1-2 1.1
A
*The ripple measurement is made at both ends of the electrolytic capacitor CO (470 μF). For the capacitor CIN , a YXF type made by Rubycon for
switching power supplies, or equivalent, is recommended. For CO, a low impedance ZL type made by Rubycon for switching power supplies, or
equivalent, is recommended. In this case, a 470 μF electrolytic capacitor was connected at 10 mm trace length from the output terminal.
Ripple Current Measurement Circuit
1.5D2V coaxial cable
(RG-174/U equivalent)
4 VIN
VO 1
1.5 m length
Terminator Oscilloscope
BW 20 MHz
BR300
470 CμFO
VIN Electrolytic
50 Ω Z = 1 MΩ
10 nF
CIN
220 μF
GND 2
Rated
Load
10 mm
Trace Length
BR300-DS, Rev. 1.0
SANKEN ELECTRIC CO., LTD.
3
September 11, 2012
Free Datasheet http://www.Datasheet4U.com


3Pages


BR300 電子部品, 半導体
BR300
5 V, 1 A Non-Isolated Step Down DC/DC Converter Module
Typical Application
VIN
8 to 30 V
4 VIN
VO 1
BR300
CIN
220 μF
GND
2
NC
3
Load
CO
Electrolytic 470 μF
or Ceramic 30 μF
Typical application circuit example
• An input electrolytic capacitor, CIN , of approximately 220 μF should be connected to the input
side of the BR300. If the input voltage is stable, it is not required.
• An output capacitor, CO, either electrolytic of approximately 470 μF or ceramic of
approximately 30 μF should be connected to the output side of the BR300.
• For CIN , a YXF type made by Rubycon for switching power supplies or equivalent is
recommended.
• For CO , either a low impedance ZL type made by Rubycon, or three ceramic capacitors
connected in parallel (GRM31CR71E106KA12 made by Murata), for switching power
supplies or equivalent are recommended.
• Depending on PCB layout, output voltage ripple could be amplified. Please check the output
voltage ripple in the actual application.
BR300-DS, Rev. 1.0
SANKEN ELECTRIC CO., LTD.
6
September 11, 2012
Free Datasheet http://www.Datasheet4U.com

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