ROHM BD6529GUL

Power Management Switch ICs for PCs and Digital Consumer Products
Load Switch ICs
for Portable Equipment
No.11029ECT19
BD6528HFV,BD6529GUL
●Description
Power switch for memory card Slot (BD6528HFV, BD6529GUL) is a high side switch IC having one circuit of N-channel
Power MOSFET. This switch IC achieves ON resistance of 100mΩ with BD6529GUL; and 110mΩ with BD6528HFV.
Operations from low input voltage (VIN≦2.7V) is possible; made for use of various switch applications. BD6524HFV is
available in a space-saving HVSOF6 package. BD6529GUL is available in a space-saving VCSP-6 package.
●Features
1) Single channel of Low On-Resistance (Typ. = 100mΩ) N-channel MOSFET built in
2) 500mA output current
3) Low voltage switch capability
4) Soft-start function
5) Output discharge circuit
6) Reverse current flow blocking at switch off
7) HVSOF6 package for BD6528HFV
VCSP50L1 package for BD6529GUL
●Applications
Memory card slots of Mobile phone, Digital still camera, PDA, MP3 player, PC, etc.
●Line up matrix
Part Number
ON resistance
Output current
Discharge circuit
Logic Control Input
BD6528HFV
110mΩ
500mA
○
High
BD6529GUL
100mΩ
500mA
○
High
Package
HVSOF6
1.6 x 3.0 mm
VCSP50L1
1.5 x 1.0 mm
●Absolute maximum ratings
Parameter
Symbol
Ratings
Unit
VDD
-0.3 ～ 6.0
V
Supply voltage
VIN voltage
VIN
-0.3 ～ 6.0
V
EN voltage
VEN
-0.3 ～ VDD + 0.3
V
VOUT voltage
VOUT
-0.3 ～ 6.0
V
Storage temperature
TSTG
-55 ～ 150
℃
Power dissipation
*1
*2
*
*
Pd
849 *1 (BD6528HFV)
575 *2 (BD6529GUL)
mW
Mounted on 70mm * 70mm * 1.6mm Glass-epoxy PCB. Derating: 6.8mW /℃ at Ta > 25℃
Mounted on 50mm * 58mm * 1.75mm Glass-epoxy PCB. Derating: 4.6mW / ℃ at Ta > 25℃
This product is not designed for protection against radioactive rays.
Operation is not guaranteed.
●Operating conditions
Parameter
Symbol
Operating voltage
Switch input voltage
Operation temperature
Output current
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© 2011 ROHM Co., Ltd. All rights reserved.
VDD
Ratings
Min.
Typ.
Max.
2.7
3.3
4.5
Unit
V
VIN
0
1.2
2.7
V
TOPR
-25
25
85
℃
ILO
0
-
500
mA
1/11
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Electrical characteristics
○BD6528HFV(unless otherwise specified, VDD =3.3V, VIN = 1.2V, Ta = 25℃)
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Condition
[Current consumption]
Operating current
IDD
-
20
30
µA
VEN = 1.2V
Standby current
ISTB
-
0.01
1
µA
VEN = 0V
VENH
1.2
-
-
V
High level input
VENL
-
-
0.4
V
Low level input
IEN
-1
-
1
µA
VEN = 0V or VEN = 1.2V
On-resistance
RON
-
110
-
mΩ
IOUT = 500mA
Switch leakage current
ILEAK
-
0.01
10
µA
VEN = 0V, VOUT = 0V
Output rise time
TON1
-
0.5
1
ms
RL = 10Ω, VOUT 10% → 90%
Output turn-on time
TON2
-
0.6
2
ms
RL = 10Ω, VEN High →VOUT 90%
Output fall time
TOFF1
-
1
20
µs
RL = 10Ω, VOUT 90% → 10%
Output turn-off time
TOFF2
-
15
100
µs
RL = 10Ω, VEN Low →VOUT 10%
Discharge on-resistance
RDISC
-
70
110
Ω
IOUT = -1mA, VEN = 0V
Parameter
IDISC
-
15
20
mA
VOUT = 3.3V, VEN = 0V
[I/O]
EN input voltage
EN input current
[Power switch]
[Discharge circuit]
○BD6529GUL(unless otherwise specified, VDD =3.3V, VIN = 1.2V, Ta = 25℃)
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Condition
[Current consumption]
Operating current
IDD
-
20
30
µA
VEN = 1.2V
Standby current
ISTB
-
0.01
1
µA
VEN = 0V
VENH
1.2
-
-
V
High level input
VENL
-
-
0.4
V
Low level input
IEN
-1
-
1
µA
VEN = 0V or VEN = 1.2V
On Resistance
RON
-
100
-
mΩ
IOUT = 500mA
Switch leakage current
ILEAK
-
0.01
10
µA
VEN = 0V, VOUT = 0V
Output turn on rise time
TON1
-
0.5
1
ms
RL = 10Ω, VOUT 10% → 90%
[I/O]
EN input voltage
EN input current
[Power switch]
Output turn on time
TON2
-
0.6
2
ms
RL = 10Ω, VEN High →VOUT 90%
Output turn off fall time
TOFF1
-
0.1
4
µs
RL = 10Ω, VOUT 90% → 10%
Output turn off time
TOFF2
-
1
6
µs
RL = 10Ω, VEN Low →VOUT 10%
Discharge on-resistance
RDISC
-
70
110
Ω
IOUT = -1mA, VEN = 0V
Discharge current
IDISC
-
15
20
mA
VOUT = 3.3V, VEN = 0V
[Discharge circuit]
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2/11
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Test circuit
V IN
VIN
VOUT
VDD
VOUT
GND
EN
V DD V EN
RL
CL
Fig.1 Measurement circuit
●Switch output turn ON/OFF timing
VEN
50%
50%
TON2
TOFF2
90%
VOUT
90%
10%
10%
TON1
TOFF1
Fig.2 Timing diagrams
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© 2011 ROHM Co., Ltd. All rights reserved.
3/11
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Reference data
30
30
1.0
VDD=3.3V
20
15
10
5
20
15
10
3
4
0
-50
5
SUPPLY VOLTAGE : VDD [V]
0.2
0.0
0
50
100
2
0.4
0.2
VDD=3.3V
ENABLE INPUT VOLTAGE :
VEN [V]
ENABLE INPUT VOLTAGE:
VEN [V]
0.6
1.5
1.0
0.5
2
Fig.6 Standby current
EN disable
3
4
SUPPLY VOLTAGE : VDD [V]
0.0
-50
100
50
200
3
4
SUPPLY VOLTAGE : VDD [V]
100
0
-50
50.0
0.0
ON RESISTANCE :
RON [mΩ]
Ta=25ºC
Ta=-25ºC
400
600
OUTPUT CURRENT : IOUT [mA]
Fig.12 On-resistance vs. IOUT
(BD6528HFV)
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0
1
2
3
INPUT VOLTAGE : VIN [V]
Fig.11 On-resistance vs. VIN
(BD6528HFV)
200
150
100
VDD=3.3V
VIN=1.2V
IOUT=100mA
100
50
0
200
Ta=-25ºC
0
Ta=25ºC
VIN=1.2V
IOUT=100mA
150
Ta=85ºC
Ta=25ºC
50
0
50
100
AMBIENT TEMPERATURE : Ta [°C]
200
100.0
100
Fig.10 On-resistance vs. temperature
(BD6528HFV)
VDD=3.3V
VIN=1.2V
150.0
Ta=85ºC
ON RESISTANCE :
RON [mΩ]
200.0
150
50
5
Fig.9 On-resistance vs. VDD
(BD6528HFV)
VDD=3.3V
IOUT=100mA
VDD=3.3V
VIN=1.2V
IOUT=100mA
150
0
0
50
100
AMBIENT TEMPERATURE : Ta [°C]
Fig.8 EN input voltage
ON RESISTANCE :
RON [mΩ]
ON RESISTANCE :
RON [mΩ]
Ta=25ºC
VIN=1.2V
IOUT=100mA
0
0.5
5
200
2
1.0
Fig.7 EN input voltage
200
150
1.5
0.0
0
50
100
AMBIENT TEMPERATURE : Ta [°C]
5
2.0
Ta=25ºC
0.8
0.0
-50
3
4
SUPPLY VOLTAGE : VDD [V]
Fig.5 Standby current
EN disable
2.0
VDD=3.3V
STANDBY CURRENT :
ISTB[uA]
0.4
Fig.4 Operating current
EN enable
1.0
ON RESISTANCE :
RON [mΩ]
0.6
AMBIENT TEMPERATURE : Ta [°C]
Fig.3 Operating current
EN enable
ON RESISTANCE :
RON [mΩ]
0.8
5
0
2
Ta=25ºC
25
STANDBY CURRENT :
ISTB[uA]
25
OPERATING CURRENT :
IDD [μA]
OPERATING CURRENT :
IDD [µA]
Ta=25ºC
2
3
4
SUPPLY VOLTAGE : VDD [V]
Fig.13 On-resistance vs. VDD
(BD6529GUL)
4/11
5
50
0
-50
0
50
100
AMBIENT TEMPERATURE : Ta [°C]
Fig.14 On-resistance vs. temperature
(BD6529GUL)
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
200
1.0
200
VDD=3.3V
IOUT=100mA
VDD=3.3V
VIN=1.2V
Ta=85ºC
100
Ta=25ºC
Ta=-25ºC
50
0
Ta=85ºC
100
Ta=25ºC
Ta=-25ºC
50
1
2
INPUT VOLTAGE : VIN [V]
3
200
2
600
1.2
0.8
0.4
0.8
0.0
2
100
1.2
0.4
0.0
50
3
4
5
-50
SUPPLY VOLTAGE : VDD [V]
AMBIENT TEMPERATURE : Ta [°C]
Fig.18 Output rise time
Ta=25ºC
RL=10Ω
40
TURN OFF TIME :
TOFF2 [us]
FALL TIME :
TOFF1 [us]
0.4
100
50
VDD=3.3V
RL=10Ω
0.8
0.6
50
Fig.20 Output turn-on time
1.0
Ta=25ºC
RL=10Ω
0
AMBIENT TEMPERATURE : Ta [°C]
Fig.19 Output turn-on time
1.0
0.8
VDD=3.3V
RL=10Ω
1.6
TURN ON TIME :
TON2 [ms]
TURN ON TIME :
TON2 [ms]
0.4
5
2.0
Ta=25ºC
RL=10Ω
1.6
0.6
4
Fig.17 Output rise time
2.0
VDD=3.3V
RL=10Ω
0
3
SUPPLY VOLTAGE : VDD [V]
Fig.16 On-resistance vs. IOUT
(BD6529GUL)
0.2
FALL TIME :
TOFF1[us]
400
OUTPUT CURRENT : IOUT [mA]
1
0
-50
0.4
0.0
0
Fig.15 On-resistance vs. VIN
(BD6529GUL)
0.8
0.6
0.2
0
0
RISE TIME :
TON1 [ms]
150
RISE TIME :
TON1 [ms]
ON RESISTANCE :
RON [mΩ]
ON RESISTANCE :
RON[mΩ]
150
Ta=25ºC
RL=10Ω
0.8
0.6
0.4
30
20
BD6528HFV
0.2
0.2
10
0.0
0.0
0
BD6529GUL
2
3
4
SUPPLY VOLTAGE : VDD [V]
-50
5
Fig.21 Output fall time
2
100
20
BD6528HFV
10
BD6529GUL
0
0
50
100
AMBIENT TEMPERATURE : Ta [°C]
Fig.24 Output turn-off time
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© 2011 ROHM Co., Ltd. All rights reserved.
5
200
VDD=3.3V
150
100
50
0
-50
4
Fig.23 Output turn-off time
DISCHARSE ON RESISTANCE :
RDISC [O]
30
3
SUPPLY VOLTAGE : VDD [V]
200
VDD=3.3V
RL=10Ω
DISCHARSE ON RESISTANCE :
RDISC[Ω]
TURN OFF TIME :
TOFF2[us]
50
Fig.22 Output fall time
50
40
0
AMBIENT TEMPERATURE : Ta [°C]
2
3
4
5
SUPPLY VOLTAGE : VDD [V]
Fig.25 Discharge on-resistance
5/11
Ta=25ºC
150
100
50
0
-50
0
50
100
AMBIENT TEMPERATURE : Ta [°C]
Fig.26 Discharge on-resistance
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Waveform data
VEN
(0.5V/div.)
VEN
(0.5V/div.)
VOUT
(0.2V/div.)
VDD=3.3V
VIN=1.2V
RL=500Ω
CL=4.7uF
IOUT
(10mA/div.)
VDD=3.3V
VIN=1.2V
RL=500Ω
CL=4.7uF
VOUT
(0.2V/div.)
IOUT
(10mA/div.)
TIME (0.2ms/div.)
TIME (0.2ms/div.)
Fig.27 Output turn-on response
BD6528HFV
Fig.28 Output turn-off response
BD6528HFV
VEN
(0.5V/div.)
VEN
(0.5V/div.)
VOUT
(0.2V/div.)
VDD=3.3V
VIN=1.2V
RL=10Ω
CL=4.7uF
IOUT
(50mA/div.)
VDD=3.3V
VIN=1.2V
RL=10Ω
CL=4.7uF
VOUT
(0.2V/div.)
IOUT
(50mA/div.)
TIME (0.2ms/div.)
Fig.29 Output turn-on response
BD6528HFV
VEN
(0.5V/div.)
TIME (0.2ms/div.)
Fig.30 Output turn-off response
BD6528HFV
VEN
(0.5V/div.)
VOUT
(0.2V/div.)
VDD=3.3V
VIN=1.2V
RL=500Ω
CL=4.7µF
IOUT
(10mA/div.)
VDD=3.3V
VIN=1.2V
RL=500Ω
CL=4.7µF
VOUT
(0.2V/div.)
IOUT
(10mA/div.)
TIME (0.2ms/div.)
TIME (0.2ms/div.)
Fig.31 Output turn-on response
BD6529GUL
Fig.32 Output turn-off response
BD6529GUL
VEN
(0.5V/div.)
VEN
(2V/div.)
VEN
(0.5V/div.)
VDD=3.3V
VIN=1.2V
RL=10Ω
CL=4.7µF
VOUT
(0.2V/div.)
VDD=3.3V
VIN=1.2V
RL=10Ω
CL=4.7µF
VOUT
(0.2V/div.)
VIN=1.2V
VDD=3.3V
VOUT
(1V/div.)
CL=22µF
CL=10uF
IOUT
(50mA/div.)
IOUT
(20mA/div.)
IOUT
(50mA/div.)
TIME (0.2ms/div.)
TIME (0.2ms/div.)
Fig.33 Output turn-on response
BD6529GUL
Fig.34 Output turn-off response
BD6529GUL
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6/11
CL=4.7uF
TIME (0.2ms/div.)
Fig.35 Rush current response
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Block diagram
VIN
VOUT
VDD
B
A
VIN
VDD
1
VOUT
EN
2
VOUT
GND
3
BD6529GUL (Bottom view)
charge
pump
GND
EN
BD6528HFV (Top view)
Fig.36 Block diagram
Fig.37 Pin configuration
●Pin description
Pin number
Pin name
1
(A3)
2, 3
(B2, B3)
4
(B1)
5
(A1)
6
(A2)
Pin function
GND
Ground
VOUT
Switch output
(connect each pin externally)
VIN
VDD
EN
Switch input
Power supply
(for switch control and drive circuit)
Enable input
(Active-High Switch on input)
●I/O equivalent circuit
Pin name
Pin number
Equivalent circuit
VDD
EN
VIN
VOUT
6
(A2)
4
(B1)
2, 3
(B2, B3)
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© 2011 ROHM Co., Ltd. All rights reserved.
EN
VIN
VOUT
7/11
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Operation description
1. Switch operation
Each VIN and VOUT pins are connected to MOSFET’s drain and source. By setting EN input to High level, the internal
charge pump operates and turns on MOSFET.
When MOSFET is turned on, the switch becomes bidirectional characteristics. Consequently, in case of VIN < VOUT, the
current is flowing from VOUT to VIN.
Since there is no parasitic diode between switch’s drain and source, it prevents the reverse current flow from VOUT to
VIN during switch off stage.
2. Output discharge circuit
Discharge circuit operates when switch is off. When discharge circuit operates, 70Ω (Typ.) resistor is connected between
VOUT pin and GND pin. This discharges the electrical charge quickly.
VDD
VIN
EN
VOUT
Discharge circuit
ON
OFF
ON
OFF
ON
Fig.38 Operation timing
●Application circuit example
V IN
V DD
ON / OFF
VIN
VOUT
VDD
VOUT
EN
LOAD
GND
Fig.39 Application circuit example
* This application circuit does not guarantee its operation.
When the external circuit constant, etc. is changed, be sure to consider adequate margins; by taking into account
external parts and/or IC’s dispersion including not only static characteristics, but also transient characteristics.
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8/11
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Power dissipation characteristics
900
POWER DISSIPATION : Pd [mW]
800
700
600
500
400
300
200
100
0
0
25
50
75
100
125
150
125
150
AMBIENT TEMPERATURE : Ta [ ℃]
Fig.40 Power dissipation curve (Pd-Ta Curve)
(HVSOF6 package)
700
POWER DISSIPATION : Pd [mW]
600
500
400
300
200
100
0
0
25
50
75
100
AMBIENT TEMPERATURE : Ta [ ℃]
Fig.41 Power dissipation curve (Pd-Ta Curve)
(VCSP50L1 package)
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9/11
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Notes foe use
(1) Absolute Maximum Ratings
An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can
break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any
special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety
measures including the use of fuses, etc.
(2) Power supply and GND line
Design PCB pattern to provide low impedance for the wiring between the power supply and the GND lines. Pay attention
to the interference by common impedance of layout pattern when there are plural power supplies and GND lines.
Especially, when there are GND pattern for small signal and GND pattern for large current included the external circuits,
separate each GND pattern. Furthermore, for all power supply terminals to ICs, mount a capacitor between the power
supply and the GND terminal. At the same time, in order to use a capacitor, thoroughly check to be sure the
characteristics of the capacitor to be used present no problem including the occurrence of capacity dropout at a low
temperature, thus determining the constant.
(3) GND voltage
Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state.
Furthermore, check to be sure no terminals are at a potential lower than the GND voltage including an actual electric
transient.
(4) Short circuit between terminals and erroneous mounting
In order to mount ICs on a set PCB, pay thorough attention to the direction and offset of the ICs. Erroneous mounting can
break down the ICs. Furthermore, if a short circuit occurs due to foreign matters entering between terminals or between
the terminal and the power supply or the GND terminal, the ICs can break down.
(5) Operation in strong electromagnetic field
Be noted that using ICs in the strong electromagnetic field can malfunction them.
(6) Input terminals
In terms of the construction of IC, parasitic elements are inevitably formed in relation to potential. The operation of the
parasitic element can cause interference with circuit operation, thus resulting in a malfunction and then breakdown of the
input terminal. Therefore, pay thorough attention not to handle the input terminals, such as to apply to the input terminals
a voltage lower than the GND respectively, so that any parasitic element will operate. Furthermore, do not apply a voltage
to the input terminals when no power supply voltage is applied to the IC. In addition, even if the power supply voltage is
applied, apply to the input terminals a voltage lower than the power supply voltage or within the guaranteed value of
electrical characteristics.
(7) External capacitor
In order to use a ceramic capacitor as the external capacitor, determine the constant with consideration given to a
degradation in the nominal capacitance due to DC bias and changes in the capacitance due to temperature, etc.
(8) Thermal design
Perform thermal design in which there are adequate margins by taking into account the power dissipation (PD) in actual
states of use.
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10/11
2011.05 - Rev.C
Technical Note
BD6528HFV,BD6529GUL
●Ordering part number
B
D
6
Part No.
5
2
8
Part No.
6528
6529
H
F
V
-
Package
HFV: HVSOF6
GUL: VCSP50L1
T
R
Packaging and forming specification
TR: Embossed tape and reel
(HVSOF6)
E2: Embossed tape and reel
(VCSP50L1)
HVSOF6
<Tape and Reel information>
(1.5)
(0.45)
6 5 4
Tape
Embossed carrier tape
Quantity
3000pcs
Direction
of feed
TR
The direction is the 1pin of product is at the upper right when you hold
( reel on the left hand and you pull out the tape on the right hand
(0.15)
(1.2)
(1.4)
1 2 3
)
1pin
0.145±0.05
0.75Max.
3.0±0.1
2.6±0.1
(MAX 2.8 include BURR)
1.6±0.1
(MAX 1.8 include BURR)
S
0.1 S
0.22±0.05
Direction of feed
0.5
Reel
(Unit : mm)
∗ Order quantity needs to be multiple of the minimum quantity.
VCSP50L1(BD6529GUL)
<Tape and Reel information>
1.50±0.05
Tape
Embossed carrier tape (heat sealing method)
Quantity
3000pcs
Direction
of feed
0.55MAX
0.10±0.05
1.00±0.05
1PIN MARK
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
0.08 S
(φ0.15)INDEX POST
6-φ0.25±0.05
0.05 A B
A
0.5
B B
A
1
0.25±0.05
0.25±0.05
S
2
3
1pin
P=0.5×2
(Unit : mm)
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© 2011 ROHM Co., Ltd. All rights reserved.
Reel
11/11
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2011.05 - Rev.C
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
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http://www.rohm.com/contact/
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© 2011 ROHM Co., Ltd. All rights reserved.
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