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BD9150MUV 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BD9150MUV은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 BD9150MUV 자료 제공

부품번호 BD9150MUV 기능
기능 Output 1.5A or Less High Efficiency Step-down Switching Regulator
제조업체 ROHM Semiconductor
로고 ROHM Semiconductor 로고


BD9150MUV 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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BD9150MUV 데이터시트, 핀배열, 회로
Single-chip Type with Built-in FET Switching Regulator Series
Output 1.5A or Less High Efficiency
Step-down Switching Regulator
with Built-in Power MOSFET
BD9150MUV
No.10027ECT13
Description
ROHM’s high efficiency dual step-down switching regulator BD9150MUV is a 2ch output power supply designed to produce
a low voltage including 3.3,1.2 volts from 5.0 volts power supply line. Offers high efficiency with our original pulse skip control
technology and synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden
change in load.
Features
1) Offers fast transient response with current mode PWM control system.
2) Offers highly efficiency for all load range with synchronous rectifier (Pch/Nch FET)
and SLLMTM (Simple Light Load Mode)
3) 2ch output power supply.
4) Each of EN controls 2ch output.
5) Incorporates soft-start function.
6) Incorporates ULVO functions.
7) Incorporates thermal protection and short-current protection circuit with time delay function.
8) Incorporates shutdown function Icc=0μA(Typ.)
9) Output current max 1.5A/1.5A.
10) Employs small surface mount package : VQFN020V4040
Use
Power supply for LSI including DSP, Micro computer and ASIC
Absolute Maximum Rating (Ta=25)
Parameter
Vcc Voltage
EN Voltage
SW Voltage
Power Dissipation
Symbol
VCC
VEN1
VEN2
VSW1
VSW2
Pd1
Pd2
Pd3
Pd4
Limit
-0.3+7 *1
-0.3+7
-0.3+7
-0.3+7
-0.3+7
0.34*2
0.70 *3
1.21 *4
3.56*5
Unit
V
V
V
V
V
W
W
W
W
Operating Temperature Range
Topr
-40+85
Storage Temperature Range
Tstg
-55+150
Maximum Junction
Tjmax
+150
*1 Pd should not be exceeded.
*2 IC only
*3 1-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm2
*4 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm2 , in each layers
*5 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 5505mm2, in each layers
www.rohm.com
c 2010 ROHM Co., Ltd. All rights reserved.
1/16
2010.04 - Rev.C




BD9150MUV pdf, 반도체, 판매, 대치품
BD9150MUV
Characteristics data
3.5
3.0
2.5
Ta=25
2.0 Io=1.5A
1.5
VOUT1=3.3V
1.0
VOUT2=1.2V
0.5
0.0
0
1234
INPUT VOLTAGE:VCC[V]
5
Fig.3 Vcc - VOUT
3.40
VOUT1=3.3V
3.35
3.30
3.25
3.20
-40
VCC=5V
Io=0A
-20 0
20 40 60
TEMPERATURE:Ta[]
Fig. 6 Ta - VOUT
80
1.7
1.6
1.5
1.4
VCC=5V
1.3
-40
-20 0 20 40 60
TEMPERATURE:Ta[]
Fig.9 Ta - Fosc
80
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40
VCC=5V
-20 0
20 40 60
TEMPERATURE:Ta[]
80
Fig.12 Ta-VEN
Technical Note
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
VOUT1=3.3V
VOUT2=1.2V
VCC=5V
Ta=25
Io=0A
1234
EN VOLTAGE:VEN[V]
Fig.4 VEN - VOUT
5
1.25
【【VOVOUUT2T=21=.12.V2V設】定】
1.23
1.20
1.18
1.15
-40
VCC=5V
Io=0A
-20 0
20 40 60
T EM PER AT U R E:T a[]
Fig. 7 Ta - VOUT
80
3.5
3.0
2.5
VOUT1=3.3V
2.0
1.5
1.0
VOUT2=1.2V
0.5
VCC=5V
Ta=25
0.0
0
123
OUTPUT CURRENT:IOUT[A]
4
Fig.5 IOUT - VOUT
100
90
80
70
60
50
40
30
20
10
0
10
【【VVOOUUTT12==32..35VV】】
VOUT2=1.5V
VOUT2=1.2V
VCC=5V
Ta=25
100 1000
OUTPUT CURRENT:IOUT[mA]
Fig.8 Efficiency
10000
1.7
1.6
1.5
1.4
1.3
4.5
4.75 5 5.25
INPUT VOLTAGE:VCC[V]
Fig.10 Vcc - Fosc
5.5
600 Ta=25
500
400
300
200
VCC=5V
100
0
-40
-20 0 20 40 60
TEMPERATURE:Ta[]
80
Fig.13 Ta-ICC
200
175
PMOS
150
125
NMOS
100
75
50 VCC=5V
25
0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[]
Fig.11 Ta – RONN, RONP
VCC=5V,Ta=25
EN1=E2
VOUT1
VOUT2
Fig.14 Soft start waveform
(Io=0mA)
www.rohm.com
c 2010 ROHM Co., Ltd. All rights reserved.
4/16
2010.04 - Rev.C

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BD9150MUV 전자부품, 판매, 대치품
BD9150MUV
Technical Note
Operation
BD9150MUV is a synchronous rectifying step-down switching regulator that achieves faster transient response by employing
current mode PWM control system. It utilizes switching operation in PWM (Pulse Width Modulation) mode for heavier load,
while it utilizes SLLM (Simple Light Load Mode) operation for lighter load to improve efficiency.
Synchronous rectifier
It does not require the power to be dissipated by a rectifier externally connected to a conventional DC/DC converter IC, and its
P.N junction shoot-through protection circuit limits the shoot-through current during operation, by which the power dissipation
of the set is reduced.
Current mode PWM control
Synthesizes a PWM control signal with a inductor current feedback loop added to the voltage feedback.
PWM (Pulse Width Modulation) control
The oscillation frequency for PWM is 1 MHz. SET signal form OSC turns ON a highside MOS FET (while a lowside MOS
FET is turned OFF), and an inductor current IL increases. The current comparator (Current Comp) receives two signals, a
current feedback control signal (SENSE: Voltage converted from IL) and a voltage feedback control signal (FB), and issues
a RESET signal if both input signals are identical to each other, and turns OFF the highside MOS FET (while a lowside MOS
FET is turned ON) for the rest of the fixed period. The PWM control repeat this operation.
SLLM (Simple Light Load Mode) control
When the control mode is shifted from PWM for heavier load to the one for lighter load or vise versa, the switching pulse is
designed to turn OFF with the device held operated in normal PWM control loop, which allows linear operation without
voltage drop or deterioration in transient response during the mode switching from light load to heavy load or vise versa.
Although the PWM control loop continues to operate with a SET signal from OSC and a RESET signal from Current Comp,
it is so designed that the RESET signal is held issued if shifted to the light load mode, with which the switching is tuned OFF
and the switching pulses are thinned out under control. Activating the switching intermittently reduces the switching
dissipation and improves the efficiency.
VOUT
SENSE
Current
Comp
RESET
Level
Shift FB
Gm Amp.
RQ
SET S
OSC
ITH
Driver
Logic
IL
SW
Load
VOUT
Fig.27 Diagram of current mode PWM control
Current
Comp
SET
RESET
SW
IL
VOUT
Fig.28 PWM switching timing chart
PVCC
SENSE
FB
GND
Current
Comp
SET
GND
GND
RESET
SW
IL(AVE)
IL
VOUT(AVE)
VOUT
Not switching
Fig.29 SLLMTM switching timing chart
PVCC
SENSE
FB
GND
GND
GND
0A
VOUT(AVE)
www.rohm.com
c 2010 ROHM Co., Ltd. All rights reserved.
7/16
2010.04 - Rev.C

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부품번호상세설명 및 기능제조사
BD9150MUV

Output 1.5A or Less High Efficiency Step-down Switching Regulator

ROHM Semiconductor
ROHM Semiconductor

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