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BD3925FP-C PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD3925FP-C
기능 Voltage Tracker
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BD3925FP-C 데이터시트, 핀배열, 회로
Datasheet
Voltage Tracker
BD3925FP-C BD3925HFP-C
General Description
BD3925FP-C and BD3925HFP-C are voltage trackers
for automotive use which have high withstand-voltage of
up to 50V. They offer an output current loading of up to
500mA while limiting the quiescent current to 45µA
(Typ).
BD3925FP-C and BD3925HFP-C are suited for
systems that are permanently connected to the car
battery and require low-current-consumption. The offset
is ±10mV (for 5V output, 6V < VCC < 36V, 5mA < lOUT <
200mA). They integrate foldedtype over-current
protection to minimize heat dissipation when
accidentally shorted, thus offering the most robust
power-supply design under harsh automotive
environment.
Features
Low-Saturation Voltage Type P-Channel DMOS
Output Transistors
Low Offset Voltage: ± 10mV(for 5V Output,
6V< VCC <36V, 5mA<lOUT<200mA)
VCC Power Supply Voltage = 50 V
Integrated Over-Current Protection Circuit and
Thermal Shutdown Circuit
Applications
Onboard vehicle devices (body-control, car stereos,
satellite navigation systems, etc.)
Key Specifications
Input Supply Voltage Range:
Ultra-Low Quiescent Current:
Operating Temperature Range:
4.5V to 36V
45µA (Typ)
-40°C to +125°C
Packages
W(Typ) x D(Typ) x H(Max)
TO252-5
HRP5
6.50mm x 9.50mm x 2.50mm 9.395mm x 10.540mm x 2.005mm
Ordering Information
BD3 9 2 5 x x x-
Cxx
Part Number
Package
HFP :HRP5
FP :TO252-5
Packaging and forming specification
TR: Embossed tape and reel
(HRP5)
E2: Embossed tape and reel
(TO252-5)
Lineup
Package
TO252-5
Reel of 2000
HRP5
Reel of 2000
Orderable Part Number
BD3925FP-CE2
BD3925HFP-CTR
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/15
TSZ02201-0G1G0AN00430-1-2
20.Oct.2014 Rev.001




BD3925FP-C pdf, 반도체, 판매, 대치품
BD3925FP-C BD3925HFP-C
Typical Performance Curves
BD3925FP-C (Unless otherwise specified, VCC=13.2V, VADJ=5V, VSW=3V, Ta=25°C)
60
50
Ta=125°C
40
Ta=25°C
30
20 Ta=-40°C
10
0
0 6 12 18 24 30 36
SSUuPpPpLlyYVVoOltLaTgAeG:EV: CVCCC[V[V]]
Figure 3. Circuit Current vs Supply Voltage
5
4 Ta=125°C
Ta=25°C
3
2
1
0 Ta=-40°C
-1
0 6 12 18 24 30 36
SSUuPpPpLlyYVVoOltLaTgAeG:EV: CVCCC[V[V] ]
Figure 4. Offset Voltage vs Supply Voltage1
(IOUT=5mA)
5
4
3 Ta=25°C Ta=125°C
2 Ta=-40°C
1
0
-1
0 6 12 18 24 30 36
SSuupppplylyVVolotaltgaeg:eV: VCCCC[V[]V]
Figure 5. Offset Voltage vs Supply Voltage 2
(IOUT=200mA)
Ta=125°C
Ta=25°C
Ta=-40°C
Output Current : IOUT [mA]
Figure 6. Dropout Voltage vs Output Current
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/15
TSZ02201-0G1G0AN00430-1-2
20.Oct.2014 Rev.001

4페이지










BD3925FP-C 전자부품, 판매, 대치품
BD3925FP-C BD3925HFP-C
Pin Settings / Precautions
1. VCC Pins
Insert capacitors with a capacitance of 0.33µF to 1000µF between the VCC and GND pins.
The capacitance varies with the application. Be sure to design the capacitance with a sufficient margin.
2. Output Pin
It is necessary to place capacitors between each output pin and GND to prevent oscillation on the output. Usable
capacitance values range from 4.7µF to 1000µF. Ceramic capacitors can be used as long as their ESR value is low
enough to prevent oscillation. Abrupt fluctuations in input voltage and load conditions may affect the output voltage.
Output capacitance values should be determined only through sufficient testing of the actual application.
VCC=13.2V,VOUT=5V,Ta=25°C,
CIN=0.33µF, COUT=4.7µF
100
10
1
0.1 Stable Operating Area
0.01
0
100 200 300 400
Load Current [mA]
LOAD CURRENT (mA)
500
Effective Series Resistance vs Load Current
(Reference Data)
13.2V
0.33µF
5V
VCC
SW
ADJ
OUT
GND
ESR
COUT 4.7µF
IOUT
Note: Measurement Circuit (Reference Data)
Power Dissipation
8
7
6
TO252-5
IC mounted on a ROHM standard board
Substrate size: 70mm x 70mm x 1.6mm
θja=96.2(°C/W)
5
4
3
2
1.3W
1
0
0 25 50 75 100 125 150
Ambient Temperature : Ta [°C]
Figure 15
HRP5
8
IC mounted on a ROHM standard board
7 Substrate size: 70mm x 70mm x 1.6mm
θja=78.1(°C/W)
6
5
4
3
2 1.6W
1
0
0 25 50 75 100 125 150
Ambient Temperature : Ta [°C]
Figure 17
TO252-5
8
Mounted on a Rohm standard board
7
Board size : 70mm x 70mm x 1.6mm
Copper foil area :7mm x 7mm
6
5 4.80W
4 3.50W
2-layer board
(back surface copper foil area :15mm x 15mm)
2-layer board
(back surface copper foil area :70mm x 70mm)
4-layer board
(back surface copper foil area :70mm x 70mm)
:θja=67.6°C/W
:θja=35.7°C/W
:θja=26.0°C/W
3
2 1.85W
1
0
0 25 50 75 100 125 150
Ambient Temperature : Ta [°C]
Figure 16
HRP5
8
7.30W
Mounted on a Rohm standard board
Board size : 70mm x 70mm x 1.6mm
7 (board contains a thermal)
2-layer board
6 5.50W
(back surface copper foil area :15mm x 15mm)
2-layer board
(back surface copper foil area :70mm x 70mm)
4-layer board
(back surface copper foil area :70mm x 70mm)
5 :θja=54.3°C/W
:θja=22.7°C/W
:θja=17.1°C/W
4
3 2.30W
2
1
0
0 25 50 75 100 125 150
Ambient Temperature : Ta [°C]
Figure 18
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/15
TSZ02201-0G1G0AN00430-1-2
20.Oct.2014 Rev.001

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BD3925FP-C

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