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Datasheet BR203 PDF ( 特性, スペック, ピン接続図 )

部品番号 BR203
部品説明 (BR202 / BR203) POL Converter Module
メーカ Sanken
ロゴ Sanken ロゴ 
プレビュー
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BR203 Datasheet, BR203 PDF,ピン配置, 機能
BR202/203
POL Converter Module for 12 V System Intermediate Bus
Features and Benefits
• Industry standard footprint
• Improved soldering: gold-plated pads and side notches
• Synchronized rectifying type stepdown chopper
• High power
• High efficiency:
BR202, 88.5% at VIN = 12 V, VO = 1.2 V, IO = 11 A
BR203, 93.4% at VIN = 12 V, VO = 3.3 V, IO = 12 A
• Operating temperature range: –40°C to 85°C
• Input voltage range: 10.8 to 13.2 VDC
• Output voltage: BR202, 0.75 to 1.65 V; BR203, 1.6 to 3.63 V
• Output current range: 0 to 20 A
• Operating frequency: BR202, 300 kHz; BR203, 400 kHz
• Overcurrent protection function
Package: Module
Description
The BR202 and BR203 are thin type POL converter modules
with an industry standard exterior shape and footprint,
responsive to very high speed loads and compatible with
ceramic capacitors.
They can be used as design-free POL converters for a 12 V
system intermediate bus. They can be configured easily,
reducing overall design time, and allowing reuse of designs.
Miniaturization was achieved by high frequency switching
technology, allowing saving space on the application PCB.
Soldering capability has been significantly improved by
adoption of end face through holes.
33.0 × 13.5 × 4.2 mm
Applications:
• Communication devices
• Computer server
• Other low power conversion
Typical Application Circuit
VPG (5 V)
Power Good
VIN
ON/OFF
GND
BR202/203
ON/OFF VS+
PG VOUT
VIN RTRIM
GND
CIN RTRIM
VOUT
COUT
BR202-DS, Rev. 0.03E
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp/en/
Free Datasheet http://www.Datasheet4U.com

1 Page



BR203 pdf, ピン配列
BR202/203
POL Converter Module for 12 V System Intermediate Bus
Electrical Characteristics Unless specifically noted, TA is 25°C
Characteristic
Symbol
Test Conditions
Input Voltage Range
Output Voltage
VIN
VOUT
BR202
BR203
Adjust with RTRIM
Output Current
Output Voltage Accuracy
IOUT
ErrVOUT
With temperature derating
VIN = 10.8 to 13.2 V, IOUT = 0 to IOUT(max),
Operating Temperature Range, RTRIM = 1%
accuracy
Ripple Voltage1
Efficiency
Operating Frequency
Vrip
BR202
BR203
BW = 20 MHz, VOUT = 1.2 V,
IOUT = 0 to 20 A, COUT = 400 μF
BW = 20 MHz, VOUT = 3.3 V,
IOUT = 0 to 20 A, COUT = 400 μF
η BR202 VIN = 12 V, IOUT = 20 A, VOUT = 1.2 V
BR203 VIN = 12 V, IOUT = 20 A, VOUT = 3.3 V
BR202
fOP BR203
Overcurrent Protection Threshold
Input Capacitor2
Output Capacitor2
Startup Time
Start Delay Time
IOUT(OCP)
CIN
COUT
tr
td
Hiccup
When input voltage is an ideal voltage source
When input voltage is an ideal voltage source
BR202
BR203
VOUT from 10% to 90% points
With the ON/¯O¯¯F¯¯F¯ pin open, measured from the
VIN pin switching high, to VOUT reaching 10% of
operating level (see figure 1)
ON/¯O¯¯F¯¯F¯ Start Delay Time
With the VIN pin high, measured from the
trcd ON/¯O¯¯F¯¯F¯ pin switching open, to VOUT reaching
10% of operating level (see figure 2)
Interface Characteristics
Power Good
ON/¯O¯¯F¯¯F¯ Pin High Voltage
ON/¯O¯¯F¯¯F¯ Pin Low Voltage
PWGL
PWGH
VIH
VIL
Lower limit of Power Good
Upper limit of Power Good
When the ON/¯O¯¯F¯¯F¯ pin is set open, the
BR202/203 converters are turned on
When the ON/¯O¯¯F¯¯F¯ pin is pulled down to GND,
the BR202/203 converters are turned off
1See the Ripple Voltage Measuring Method section.
2Place a decoupling capacitor near the VIN terminal and the VOUT terminal of the BR202/203 devices.
Min.
10.8
0.75
1.60
0
–2.0
40
400
92.5
108.0
1.8
Typ.
12.0
15
25
86.1
92.3
300
400
30
2.0
1.5
2
2
96.0
111.0
Max.
13.2
1.65
3.63
20
2.0
Unit
V
V
V
A
%VOUT
100
100
5000
4000
mVp-p
mVp-p
%
%
kHz
kHz
A
μF
μF
ms
ms
ms
– ms
98.5
114.0
0.5
%VOUT
%VOUT
V
V
BR202-DS, Rev. 0.03E
SANKEN ELECTRIC CO., LTD.
3
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3Pages


BR203 電子部品, 半導体
BR202/203
POL Converter Module for 12 V System Intermediate Bus
Functional Description
Power Good ( PG) Operation
When output voltage, VOUT , is within the Power Good detection
range, the PG pin is disconnected internally by the MOSFET
switch. The signal at the Power Good node is pulled up to 5 V. If
VOUT falls out of the Power Good detection range, the MOSFET
switch connects PG to GND, and the signal at the Power Good
node is pulled low. The PG peripheral circuit is shown in figure 3.
Output Sensing ( VS+) and Compensation
Reduction in output voltage can be compensated by connecting
the output sense terminal, VS+ , to the load. When using LC filter,
the proper connection is shown in panel A of figure 2. Note: Do
not connect the output sense terminal to the output of the LC
filter. It may not operate normally.
CAUTION: When the output sense terminal is not used, it must
be connected directly to the VOUT output terminal. This is shown
in panel B of figure 4.
External On/Off Output Control (ON/¯O¯¯F¯¯F¯)
Operation of the output of the product can be turned on and off by
using the On/Off function, irrespective of input voltage connec-
tion.
This is enabled by connection of the ON/¯O¯¯F¯F pin (pin 1) (refer to
panel A of figure 5):
VPG(5V)
Power Good
GND
Figure 3. PG peripheral circuit
BR202/203
VOUT
(A)
VS+
GND
COUT
BR202/203
VOUT
(B) VS+
GND
COUT
Figure 4. VS+ peripheral circuit
BR202/203
PG
GND
L
COL
Load
• When the ON/¯O¯¯F¯F pin is open, the output voltage is on
• When the ON/¯O¯¯F¯F pin is connected to GND, the output voltage
is off
Multiple BR202 and BR203 devices can be controlled by the
same switch, by connecting the devices in parallel across the
switch (refer to panel B of figure 5).
(A)
BR202/203
ON/OFF
GND
CAUTION:
• The ON/¯O¯¯F¯F pin is pulled up to VIN via a resistor and is con-
nected to GND via a resistor inside the BR202/203 converters.
• The ON/¯O¯¯F¯F pin voltage is set to around 40% of VIN. Do not
feed voltage higher than 7 V to the pin from outside the
BR202/BR203 converters.
• When the ON/¯O¯¯F¯F pin voltage is higher than 5.5 V, connect a
1 kΩ resistor to the ON/¯O¯¯F¯F pin in series.
(B) ON/OFF
BR202
BR203
GND
Figure 5. ON/¯O¯¯F¯¯F¯ peripheral circuit
ON/OFF
BR202
BR203
GND
Load
BR202-DS, Rev. 0.03E
SANKEN ELECTRIC CO., LTD.
6
Free Datasheet http://www.Datasheet4U.com

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