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부품번호 | BD9702T-V5 기능 |
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기능 | Simple Step-down Switching Regulators | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 19 페이지수
Single-chip Type with Built-in FET Switching Regulator Series
Simple Step-down
Switching Regulators
with Built-in Power MOSFET
BD9701F P/CP-V5/T/T-V5, BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
No.09027EBT01
●Description
The BD9701/BD9703/BD9702 are single-channel step-down switching regulator capable of PWM operation.
The Pch MOS FET is built in for high efficiency in small load area.Lower electricity consumption of operating current 4mA
(Typ) and stand-by current 0uA(Typ) is realized by adopting Bi-CMOS process.
●Features
1) Maximum switching current: 1.5A(BD9701/BD9703), 3A(BD9702)
2) Built-in Pch FET ensures high efficiency
3) Output voltage adjustable via external resistors
4) High switching frequency: 100kHz (BD9701), 300kHz(BD9703), 110kHz(BD9702)
5) Overcurrent and thermal shutdown protection circuits built in
6) ON/OFF control via STBY pin
7) Small surface mount TO252-5 package (only BD9701FP, BD9703FP)
●Applications
TVs, printers, DVD players, projectors, gaming devices, PCs, car audio/navigation systems, ETCs, communication equipment,
AV products, office equipment, industrial devices, and more.
●Line Up
BD9701FP/CP-V5/T/T-V5 BD9703FP/CP-V5/T/T-V5
BD9702CP-V5/T/T-V5
Output Current
1.5A
3.0A
Input Voltage
8 or Vo+3 ~ 36V
Switching Frequency
100kHz (fixed)
300kHz (fixed)
110kHz (fixed)
External Synchronization
Stand-by Function
×
○
Operating Temperature
-40 ~ +85℃
Package T
O252-5/TO220CP-V5/TO220FP-5/TO220FP-5 (V5) TO220CP-V5/TO220FP-5/TO220FP-5 (V5)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/16
2009.04- Re v.B http://www.Datasheet4U.com
BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
●Characteristic Data
○BD9701FP/CP-V5/T/T-V5
Technical Note
100
90
80
70
60
50
40
10
100 1000
OUTPUT CURRENT : I OUT[A]
Fig.1
EFFICIENCY-LOAD CURRENT
6
5
4
3
2
1
0
01 2 3
OUTPUT CURRENT IOUT : [A]
Fig.2
OCP VCC=20V
4
110
105
100
95
90
-10 103 0 507 09 0
AMBIEN T T EM PER AT URE : T a [℃ ]
Fig.3
fosc-Ta
5.1 5.100
5.05
VCC=30V
5.050
5 5.000
4.95
VCC=10V
VCC=20V
4.950
4.9
0
200 400 600 800 1000
OUTPUT CURRENT : I OUT[A]
4.900
0
102 0 304
INPUT VOLTAGE : VCC [V]
0
Fig.4
OUTPUT VOLTAGE-LOAD CURRENT
Fig.5
OUTPUT VOLTAGE-INPUT VOLTAGE
(V o=5V,Ro=5ohm)
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
10
15 20 25 30
INPUT VOLTAGE : VCC [V]
35
Fig.6
CIRCUIT CURRENT-INPUT VOLTAGE
NO LOAD
3.5 110
3
2.5 105
2
100
1.5
1
95
0.5
0
00 .511
.52
SWITCHING CURRENT : ISW [A]
90
0
Fig.7
VOUT~OUT VOLTAGE-DRAIN CURRENT
102 0 304
INPUT VOLTAGE : VCC [V]
Fig.8
fosc-INPUT VOLTAGE
0
1.020
1.010
1.000
0.990
0.980
-10 10 30 50 70 90
AMBIENT TEMPERATURE : Ta [℃]
Fig.9
INV THRESHOLD VOLTAGE-Ta
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
4/16
2009.04- Re v.B
4페이지 BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 Technical Note
●Block Diagram
BD9701FP/CP-V5/T/T-V5, BD9703FP/CP-V5/T-V5, BD9702CP-V5/T/T-V5
TO252-5 Package Dimensions (mm)
VREF
VCC
1
PWM COMP
DRIVER
STBY 5
OSC
STBY
TSD
CTL
LOGIC
OCP
Error AMP
OUT
2
INV
4
TO220CP-V5 Package Dimensions (mm)
3
GND
Fig.28 Block Diagram
TO220FP-5 Package Dimensions (mm)
●Pin Description
Pin No.
1
2
3,FIN(*2)
4
5
Pin Name
VCC
OUT
GND
INV
STBY
Function
Input Power Supply Pin
Internal Pch FET Drain Pin
Ground
Output Voltage Feedback Pin
ON/OFF Control Pin
(*2)FIN is assigned in the case of TO252-5.
TO220FP-5(V5) Package Dimensions (mm)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
7/16
2009.04- Re v.B
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BD9702T-V5 | Simple Step-down Switching Regulators | ROHM Semiconductor |
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