RN5RZ42BC-F [RICOH]
Regulator, 1 Output, CMOS, PDSO5,;型号: | RN5RZ42BC-F |
厂家: | RICOH ELECTRONICS DEVICES DIVISION |
描述: | Regulator, 1 Output, CMOS, PDSO5, 光电二极管 |
文件: | 总24页 (文件大小:151K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LOW DROP-OUT AND LOW NOISE
VOLTAGE REGULATOR
RN5RZ SERIES
APPLICATION MANUAL
ELECTRONIC DEVICES DIVISION
NO.EA-039-9803
NOTICE
1. The products and the product specifications described in this application manual are subject to change or dis-
continuation of production without notice for reasons such as improvement. Therefore, before deciding to use
the products, please refer to Ricoh sales representatives for the latest information thereon.
2. This application manual may not be copied or otherwise reproduced in whole or in part without prior written con-
sent of Ricoh.
3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or other-
wise taking out of your country the products or the technical information described herein.
4. The technical information described in this application manual shows typical characteristics of and example
application circuits for the products. The release of such information is not to be construed as a warranty of or a
grant of license under Ricoh's or any third party's intellectual property rights or any other rights.
5. The products listed in this document are intended and designed for use as general electronic components in
standard applications (office equipment, computer equipment, measuring instruments, consumer electronic
products, amusement equipment etc.). Those customers intending to use a product in an application requiring
extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of
the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic
control system, automotive and transportation equipment, combustion equipment, safety devices, life support
system etc.) should first contact us.
6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor
products are likely to fail with certain probability. In order prevent any injury to persons or damages to property
resulting from such failure, customers should be careful enough to incorporate safety measures in their design,
such as redundancy feature, fire-containment feature and fail-safe feature. We do not assume any liability or
responsibility for any loss or damage arising from misuse or inappropriate use of the products.
7. Anti-radiation design is not implemented in the products described in this application manual.
8. Please contact Ricoh sales representatives should you have any questions or comments concerning the prod-
ucts or the technical information.
June 1995
RN5RZ SERIES
APPLICATION MANUAL
CONTENTS
......................................................................................................
OUTLINE
1
....................................................................................................
FEATURES
1
.............................................................................................
APPLICATIONS
BLOCK DIAGRAMS
SELECTION GUIDE
PIN CONFIGURATION
1
.......................................................................................
.......................................................................................
2
2
...................................................................................
3
......................................................................................
PIN DESCRIPTIONS
3
...................................................................
................................................................
ABSOLUTE MAXIMUM RATINGS
3
ELECTRICAL CHARACTERISTICS
4
..................................................................................................
OPERATION
6
............................................................................................
TEST CIRCUITS
6
.......................................................................
TYPICAL CHARACTERISTICS
8
1) Output Voltage vs. Output Current.....................................................................
2) Output Voltage vs. Input Voltage.......................................................................
3) Dropout Voltage vs. Output Current ...................................................................
8
8
9
4) Output Voltage vs. Temperature......................................................................
5) Supply Current vs. Input Voltage .....................................................................
6) Supply Current vs. Temperature......................................................................
7) Dropout Voltage vs. Set Output Voltage.............................................................
8) Ripple Rejection vs. Frequency ......................................................................
9) Ripple Rejection vs. Input Voltage (DC bias) .......................................................
10) Line Transient Response..............................................................................
11) Load Transient Response .............................................................................
10
10
11
12
12
14
14
15
17
19
20
20
...........................................................................
FOR STABLE OPERATION
..................................................................................
................................................................................
POWER DISSIPATION
PACKAGE DIMENSION
TAPING SPECIFICATION
..............................................................................
LOW DROP-OUT AND LOW NOISE
VOLTAGE REGULATOR
RN5RZ SERIES
OUTLINE
The RN5RZ Series are voltage regulator ICs with high output voltage accuracy, low supply current, low dropout
voltage and high ripple rejection developed through the use of a CMOS process. Each of these voltage regulator
ICs consists of a voltage reference unit, an error amplifier, output voltage setting resistors, a current limit circuit and
a chip enable circuit. (Provided two types of chip enable circuit ; “H” active and “L” active, that can be selected when
order.)
The output voltage of these ICs is fixed with high accuracy.
In addition to low supply current from CMOS process, the RN5RZ Series may lengthen battery life through low
dropout voltage and chip enable function thanks to the built-in low ON resistance transistor. Also when compared
with conventional regulators that employ CMOS process, these ICs have superior ripple rejection, input transient
response characteristic and load transient response characteristic thus making these product suitable for power sup-
ply for hand-held communication equipment.
Since the package for these ICs is the SOT-23-5 package, high density mounting of the ICs on boards is possible.
FEATURES
• Ultra-Low Supply Current
...........................................
TYP. 20µA
.........................
• Ultra-Low Supply Current (Standby)
TYP. 0.1µA
..................................
• High Accuracy Output Voltage
2.0%
.................................................
• High Ripple Rejection
• Low Dropout Voltage
TYP.55dB (f=1kHz)
TYP. 0.2V (IOUT=60mA)
..................................................
........
• Low Temperature-Drift Coefficient of Output Voltage
TYP. 100ppm/˚C
...........................................
• Excellent Line Regulation
TYP. 0.05%/V
.............................................................
• Output Voltage
Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V
is possible (refer to Selection Guide).
TYP. 50mA
...........................
• Built-in Short Current Limit Circuit
..............................................................
• Small Package
SOT-23-5 (Mini-mold)
APPLICATIONS
• Power source for battery-powered equipment.
• Power source for cellular phones, cameras, VCRs, camcorders, hand-held audio instruments and hand-held com-
munication equipment.
• Power source for domestic appliances.
1
RN5RZ
BLOCK DIAGRAMS
RN5RZ××B
RN5RZ××A
VDD
3
VOUT VDD
3 VOUT
2
2
–
+
–
+
Vref
Vref
Current Limit
Current Limit
5
CE
5
1
GND
1 GND
CE
SELECTION GUIDE
The output voltage, the active type of the chip enable circuit, the packing type, and the taping type for the ICs
can be selected at the user's request.
These selections can be made by designating the part number as shown below:
RN5RZ××××–××←Part Number
↑ ↑ ↑
↑
a b c
d
Code
Contents
Setting Output Voltage (VOUT) :
a
Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible.
Designation of Active Type of The Chip Enable Circuit :
A : “L” active type
b
B : “H” active type
Designation of Packing Type :
A : Taping
c
C : Antistatic bag (for Samples only)
Designation of Taping Type :
d
Ex. TR, TL (refer to Taping Specifications ; TR type is the standard direction.)
For example, the product with Output Voltage of 5.0V, Specified Polarity of Chip Enable is “H” active and Taping
Type TR is designated by Part Number RN5RZ50BA-TR.
2
RN5RZ
PIN CONFIGURATION
• SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
GND
VDD
Description
1
2
3
4
5
Ground Pin
Input Pin
VOUT
NC
Output Pin
No Connection
CE or CE Chip Enable Pin
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Ratings
Unit
V
VIN
Input Voltage
9
VCE
Input Voltage (CE or CE Pin)
Output Voltage
–0.3 to VIN +0.3
–0.3 to VIN +0.3
200
V
VOUT
IOUT
PD
V
Output Current
mA
mW
˚C
Power Dissipation
250
Topt
Tstg
Operating Temperature
Storage Temperature
–40 to +85
–55 to +125
˚C
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under
any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation
above these absolute maximum ratings may cause degradation or permanent damage to the device. These
are stress ratings only and do not necessarily imply functional operation below these limits.
3
RN5RZ
ELECTRICAL CHARACTERISTICS
• RN5RZ××A Series
Topt=25˚C
Symbol
Item
Output Voltage
Conditions
MIN.
TYP.
MAX.
Unit
VOUT
VIN=VOUT+1V, IOUT=30mA
×0.98
×1.02
V
VIN=VOUT+1V
IOUT
Output Current
Load Regulation
100
mA
When VOUT=VOUT–0.1V
VIN=VOUT+1V
∆VOUT
∆IOUT
20
40
mV
1mA≤IOUT≤80mA
VDIF
ISS
Dropout Voltage
IOUT=60mA
VIN=VOUT+1V
0.2
20
0.3
40
V
Supply Current
µA
µA
Istandby
Supply Current (Standby)
VIN=VCE=VOUT+1V
0.1
1.0
IOUT=30mA
∆VOUT
∆VIN
Line Regulation
0.05
55
0.20
8
%/V
VOUT+0.5V≤VIN≤8V
f=1kHz, Ripple 0.5Vrms
VIN=VOUT+1V
RR
Ripple Rejection
Input Voltage
dB
V
VIN
Output Voltage
IOUT=30mA
∆VOUT
∆Topt
100
ppm/˚C
Temperature Coefficient
–40˚C≤Topt≤85˚C
Ilim
RPU
Short Current Limit
CE Pull-up Resistance
CE Input Voltage “H”
CE Input Voltage “L”
VOUT=0V
50
5
mA
MΩ
V
2.5
1.5
0
10
VCEH
VCEL
0.25
V
4
RN5RZ
• RN5RZ××B Series
Topt=25˚C
Symbol
Item
Output Voltage
Conditions
MIN.
TYP.
MAX.
Unit
VOUT
IOUT
VIN=VOUT+1V, IOUT=30mA
×0.98
×1.02
V
VIN=VOUT+1V
Output Current
100
mA
When VOUT=VOUT–0.1V
VIN=VOUT+1V
∆VOUT
∆IOUT
Load Regulation
20
40
mV
1mA≤IOUT≤80mA
VDIF
ISS
Dropout Voltage
IOUT=60mA
VIN=VOUT+1V
0.2
20
0.3
40
V
Supply Current
µA
µA
Istandby
Supply Current (Standby)
VIN=VOUT+1V, VCE=GND
0.1
1.0
IOUT=30mA
∆VOUT
∆VIN
Line Regulation
0.05
55
0.20
8
%/V
VOUT+0.5V≤VIN≤8V
f=1kHz, Ripple 0.5Vrms
VIN=VOUT+1V
RR
Ripple Rejection
Input Voltage
dB
V
VIN
Output Voltage
IOUT=30mA
∆VOUT
∆Topt
100
ppm/˚C
Temperature Coefficient
–40˚C≤Topt≤85˚C
Ilim
RPU
Short Current Limit
VOUT=0V
50
5
mA
MΩ
V
CE Pull-down Resistance
CE Input Voltage “H”
CE Input Voltage “L”
2.5
1.5
0
10
VCEH
VCEL
0.25
V
5
RN5RZ
OPERATION
RN5RZ××B
RN5RZ××A
3
VOUT
3 VOUT
VDD
2
VDD
2
–
–
Error Amp.
Vref
Error Amp.
Vref
+
+
R1
R2
R1
R2
Current Limit
Current Limit
5
CE
5
1
GND
1 GND
CE
In these ICs, Output Voltage VOUT is detected by Feed-back Registers R1, R2, and the detected Output Voltage is
compared with a reference voltage by an Error Amplifier, so that a constant voltage is output.
A current limit circuit working for Short Protect and a chip enable circuit for standby function are included.
TEST CIRCUITS
IOUT
2
VDD
VOUT
3
2
5
VDD
VOUT
3
A
RN5RZ SERIES
RN5RZ SERIES
VIN
C1
C2
C2
C1
5
CE
CE
VIN
GND
GND
1
1
C1 : 1µF
C1 : 1µF
C2 : 10µF
C2 : 10µF
Fig.1 Standard Test Circuit
Fig.2 Supply Current Test Circuit
IOUT
C1
2
5
VDD
VOUT
3
RN5RZ SERIES
P.G.
VIN
CE
GND
1
C1 : 10µF
Fig.3 Line Transient Response Test Circuit
6
RN5RZ
2
5
VDD
VOUT
3
RN5RZ SERIES
VIN
C1
C2
CE
GND
l1
l2
1
C1 : 1µF
C2 : 10µF
Fig.4 Load Transient Response Test Circuit
IOUT
C2
2
5
VDD
VOUT
3
RN5RZ SERIES
VIN
C1
CE
GND
1
C1 : 1µF
C2 : 10µF
Fig.5 Ripple Rejection Test Circuit
7
RN5RZ
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
RN5RZ30B
RN5RZ40B
3.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.5V
4.0V
4.5V
5.0V
3.0
2.5
2.0
1.5
1.0
0.5
0.0
6.0V
5.0V
VIN=3.3V
VIN=4.3V
0
100
200
300
400
500
0
100
200
300
400
500
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RZ50B
6.0
5.0
4.0
3.0
2.0
1.0
0.0
6.0V
7.0V
VIN=5.3V
5.5V
0
100
200
300
400
500
Output Current IOUT(mA)
2) Output Voltage vs. Input Voltage
RN5RZ30B
RN5RZ40B
4.0
5.0
4.0
3.0
2.0
1.0
0.0
3.5
3.0
2.5
2.0
1.5
IOUT=0mA
IOUT=30mA
IOUT=0mA
1.0
0.5
0.0
IOUT=30mA
IOUT=50mA
IOUT=50mA
0.0
2.0
4.0
6.0
8.0
0.0
2.0
4.0
6.0
8.0
Input Voltage VIN(V)
Input Voltage VIN(V)
8
RN5RZ
RN5RZ50B
6.0
5.0
4.0
3.0
2.0
1.0
0.0
IOUT=0mA
IOUT=30mA
IOUT=50mA
0.0
2.0
4.0
6.0
8.0
Input Voltage VIN(V)
3) Dropout Voltage vs. Output Current
RN5RZ30B
RN5RZ40B
0.30
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0.25
0.20
0.15
0.10
Topt=–40˚C
Topt=–40˚C
Topt=25˚C
Topt=85˚C
Topt=25˚C
Topt=85˚C
0.05
0.00
0
20
40
60
80
100
0
20
40
60
80
100
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RZ50B
0.35
0.30
0.25
0.20
0.15
Topt=–40˚C
0.10
0.05
0.00
Topt=25˚C
Topt=85˚C
0
20
40
60
80
100
Output Current IOUT(mA)
9
RN5RZ
4) Output Voltage vs. Temperature
RN5RZ30B
RN5RZ40B
3.10
4.10
4.05
4.00
3.95
3.90
3.05
3.00
2.95
2.90
–50
0
50
100
–50
0
50
100
Temperature Topt(˚C)
Temperature Topt(˚C)
RN5RZ50B
5.10
5.05
5.00
4.95
4.90
–50
0
50
100
Temperature Topt(˚C)
5) Supply Current vs. Input Voltage
RN5RZ30B
RN5RZ40B
30
30
25
20
15
10
5
25
20
15
10
5
0
0.0
0
0.0
2.0
4.0
6.0
8.0
2.0
4.0
6.0
8.0
Input Voltage VIN(V)
Input Voltage VIN(V)
10
RN5RZ
RN5RZ50B
30
25
20
15
10
5
0
0.0
2.0
4.0
6.0
8.0
Input Voltage VIN(V)
6) Supply Current vs. Temperature
RN5RZ30B
RN5RZ40B
30
30
25
20
15
10
5
25
20
15
10
5
0
–50
0
–50
0
50
100
0
50
100
Temperature Topt(˚C)
Temperature Topt(˚C)
RN5RZ50B
30
25
20
15
10
5
0
–50
0
50
100
Temperature Topt(˚C)
11
RN5RZ
7) Dropout Voltage vs. Set Output Voltage
RN5RZ××B
Topt=25˚C
0.35
IOUT=10mA
0.30
IOUT=30mA
0.25
0.20
0.15
0.10
0.05
0.00
IOUT=50mA
IOUT=100mA
2
3
4
5
6
Set Output Voltage Vreg(V)
8) Ripple Rejection vs. Frequency
RN5RZ30B
RN5RZ30B
COUT=tantal 2.2µF
COUT=tantal 4.7µF
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHZ)
Frequency f(kHZ)
RN5RZ40B
RN5RZ30B
COUT=tantal 2.2µF
COUT=tantal 10µF
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHZ)
Frequency f(kHZ)
12
RN5RZ
RN5RZ40B
RN5RZ40B
COUT=tantal 4.7µF
COUT=tantal 10µF
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHZ)
Frequency f(kHZ)
RN5RZ50B
RN5RZ50B
COUT=tantal 2.2µF
COUT=tantal 4.7µF
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHZ)
Frequency f(kHZ)
RN5RZ50B
COUT=tantal 10µF
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
Frequency f(kHZ)
13
RN5RZ
9) Ripple Rejection vs. Input Voltage (DC bias)
RN5RZ30B
RN5RZ30B
IOUT =10mA
COUT=tantal 10µF
IOUT =1mA
COUT=tantal 10µF
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
f=400Hz
f=1kHz
f=400Hz
f=1kHz
f=10kHz
f=10kHz
3.1
3.2
3.3
3.4
3.5
3.1
3.2
3.3
3.4
3.5
Input Voltage VIN(V)
Input Voltage VIN(V)
RN5RZ30B IOUT =50mA
COUT=tantal 10µF
70
60
50
40
30
20
10
0
f=400Hz
f=1kHz
f=10kHz
3.1
3.2
3.3
3.4
3.5
Input Voltage VIN(V)
10) Line Transient Response
tr=tf=5µS
COUT=Ceramic 2.2µF+ESR 1Ω
3.4
3.3
3.2
3.1
3.0
2.9
2.8
6
Input Voltage
5
4
3
2
1
0
Output Voltage
–10
0
10
20
30
40
50
60
70
80
90
100
Time t(µS)
14
RN5RZ
tr=tf=5µS
COUT=Tantal 3.3µF
6
3.4
3.3
3.2
3.1
3.0
2.9
2.8
5
Input Voltage
4
3
2
1
0
Output Voltage
–10
0
10
20
30
40
50
60
70
80
90
100
Time t(µS)
tr=tf=5µS
COUT=Tantal 10µF
6
3.4
3.3
3.2
3.1
3.0
2.9
2.8
5
Input Voltage
4
3
2
1
0
Output Voltage
–10
0
10
20
30
40
50
60
70
80
90
100
Time t(µS)
11) Load Transient Response
COUT=Ceramic 2.2µF+ESR 1Ω
3.4
3.3
3.2
3.1
3.0
2.9
2.8
150
Output Current
Output Voltage
100
50
0
–50
–100
–150
–10
0
10
20
30
40
50
60
70
80
90
100
Time t(µS)
15
RN5RZ
COUT=Tantal 2.2µF
150
3.4
3.3
3.2
3.1
3.0
2.9
2.8
100
Output Current
50
Output Voltage
0
–50
–100
–150
–10
0
0
0
10
10
10
20
20
20
30
30
30
40
50
60
60
60
70
80
90
100
Time t(µS)
COUT=Tantal 3.3µF
150
3.4
3.3
3.2
3.1
3.0
2.9
2.8
100
Output Current
Output Voltage
50
0
–50
–100
–150
–10
40
50
70
80
90
100
Time t(µS)
COUT=Tantal 10µF
150
3.4
3.3
3.2
3.1
3.0
2.9
2.8
100
50
Output Current
Output Voltage
0
–50
–100
–150
–10
40
50
70
80
90
100
Time t(µS)
16
RN5RZ
FOR STABLE OPERATION
• Countermeasure for Noise
2
VIN
VOUT
3
Ceramic
Capacitor
RN5RZ SERIES
VIN
S.A.
Spectrum
Analyzer
5
CE
GND
1
ESR
IOUT
Ceramic capacitor
0.01µF
Measuring circuit for white noise ; RN5RZ30B
The relation between output current (IOUT) and Equivalent Series Resistance (ESR) in the output capacitor are
described below. The conditions when the noise level is under 40µV (Avg.) are marked as the hatched area in the
graph.
[Measuring conditions]
Frequency band : 0Hz to 1MHz
Temperature : 25˚C
Ceramic Capacitor 1µF
Ceramic Capacitor 2.2µF
: Noise level is under 40µV
: Noise level is under 40µV
100.0
10.0
1.0
100.0
10.0
1.0
0.1
0.1
0.0
0.0
0.0
0.0
20.0
40.0
60.0
80.0
100.0
20.0
40.0
60.0
80.0
100.0
Output Current IOUT(mA)
Output Current IOUT(mA)
17
RN5RZ
Ceramic Capacitor 10µF
Ceramic Capacitor 4.7µF
: Noise level is under 40µV
: Noise level is under 40µV
100.0
10.0
1.0
100.0
10.0
1.0
0.1
0.0
0.1
0.0
0.0
20.0
40.0
60.0
80.0
100.0
0.0
20.0
40.0
60.0
80.0
100.0
Output Current IOUT(mA)
Output Current IOUT(mA)
APPLICATION HINTS
When using these ICs, be sure to take care regarding the following points :
• In these ICs, phase compensation is made for securing stable operation even when the load current is var-
ied. For this purpose, be sure to use a capacitor COUT with good frequency characteristics and ESR in the
range described above.
• Make VDD and GND line sufficient. When the impedance of these is high, the noise may be picked up or
operation may become unstable.
• Connect the capacitor with a capacitance of about 1µF between VDD and GND with wiring as short as possi-
ble.
• Set external components as close as possible to the ICs and make wiring short.
18
RN5RZ
POWER DISSIPATION
The power dissipation of RN5RZ series (SOT-23-5) is measured. The measuring conditions as follows:
15.0
Material : glass cloth epoxy plastic
Size of the board : 15×15×1.6mm
Wind velocity : 0m/s
Mounted with solder
1.0
0.7
1.3
15.0
1.0
Unit : mm
RN5RZ30B(SOT-23-5)
450
400
350
300
250
200
150
100
50
Mounted on the board
Free air
0
0
25
50
75
100
125
150
Ambient Temperature Topt(˚C)
19
RN5RZ
(Unit : mm)
PACKAGE DIMENSION
• SOT-23-5
2.9±0.2
+0.2
–0.1
1.1
1.9±0.2
(0.95) (0.95)
0.8±0.1
5
4
0 to 0.1
1
2
3
0.4±0.1
+0.1
–0.05
0.15
(Unit : mm)
TAPING SPECIFICATION
• SOT-23-5
4.0±0.1
+0.1
–0
ø
1.5
0.3±0.1
2.0±0.05
3.2
3.3
4.0±0.1
2.0MAX.
T R
T L
User Direction of Feed.
20
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Phone 1-408-432-8800 Fax 1-408-432-8375
相关型号:
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