UR6515D [TRACOPOWER]
3A DDR BUS TERMINATION REGULATOR; 3A DDR总线终端稳压器
| 型号： | UR6515D |
| 厂家： | 
TRACO ELECTRONIC AG |
| 描述： | 3A DDR BUS TERMINATION REGULATOR |
| 文件： | 总9页 (文件大小：709K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
UR6515D
LINEAR INTEGRATED CIRCUIT
3A DDR BUS TERMINATION
REGULATOR
DESCRIPTION
The UR6515D is a linear regulator sourcing or sinking
continuous 2A or up to 3A transient peak current while regulating an
output voltage to within 40mV in the DDR SDRAM bus terminator
applications. It contains a high speed operational amplifier which
provides fast load transient response and only requires 10uF of
ceramic output capacitance.
The UR6515D output termination voltage tracks the reference
voltage applied at VREF pin. A resistor divider connected to VIN, GND
and VREF pins is used to force the reference voltage to VREF pin.
Additional features include current limiting protection and thermal
shutdown protection.
FEATURES
*DDR1/ DDR2/DDR3 termination voltage applications
*Sink and Source Current
-2A Continues Current
-Peak 3A for DDR1&DDR2
-Peak 2.5A for DDR3
*Low output voltage offset within 20mV
*Source and sink 3A peak current
*Adjustable output voltage by external resistors
*Integrated power MOS devices
*Suspend to RAM(STR) functionality
*Current Limiting Protection
*Thermal Shutdown Protection
*Cost-effective and easy to use
*Halogen Free
ORDERING INFORMATION
Order Number
Package
HSOP-8
Packing
UR6515DG-SH2-R
Tape Reel
www.unisonic.com.tw
Copyright © 2009 Unisonic Technologies Co., Ltd
1 of 9
QW-R101-029.A
UR6515D
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
VIN
GND
VREF
VOUT
1
2
3
4
8
7
6
5
NC
NC
GND
VCNTL
NC
PIN DESCRIPTION
PIN NAME
PIN TYPE
PIN DESCRIPTION
VCNTL
GND
VIN
I
O
I
Power supply pin for the internal control circuits
Ground pin
Power supply pin for the VOUT output
Reference voltage input and active-low shutdown control pin
Output voltage pin
VREF
VOUT
I
O
UNISONIC TECHNOLOGIES CO., LTD
2 of 9
QW-R101-029.A
www.unisonic.com.tw
UR6515D
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
3 of 9
QW-R101-029.A
www.unisonic.com.tw
UR6515D
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING (unless otherwise specified)
PARAMETER
SYMBOL
VCNTL
VIN
RATINGS
UNIT
V
VCNTL Control Voltage
VIN Supply Voltage
6
6
V
Power Dissipation (Ta=25°C)
Junction Temperature
Storage Temperature
PD
1.33
W
TJ
125
°C
°C
TSTG
-65 ~ +150
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
θJA
MIN
TYP
MAX
75
UNIT
°C/W
°C/W
Junction to Ambient (Note 1)
Junction to Case
θJC
28
Note: 1. θJA is measured in the natural convection at Ta = 25°C on a high effective thermal conductivity test board of
JEDEC 51-7 thermal measurement standard
RECOMMENDED OPERATING CONDITIONS (Note 1)
PARAMETER
SYMBOL
VCNTL
VIN
RATINGS
5 or 3.3±5%
2.5~1.5±3%
1.25~0.75±3%
-40~+125
UNIT
V
VCNTL Control Voltage
VIN Supply Voltage
VREF Input Voltage
V
VREF
TJ
V
Junction Temperature
°C
Notes: 1. All voltage values are with respect to the network ground terminal unless otherwise noted.
ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise specified)
(VIN=2.5V/1.8V/1.5V, VCNTL=3.3V, VREF=1.25V/0.9V/0.75V, COUT = 10µF (Ceramic))
PARAMETER
INPUT CURRENT
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
Operation Current of VCNTL
Standby Current
ICNTL
ISTB
IOUT =0A
1
2.5
90
mA
VREF<0.2V, RLOAD=180Ω
50
μA
OUTPUT VOLTAGE (DDR/DDR II/DDR III)
Output Voltage Offset (VREF-VOUT
Load Regulation
)
VOS
IOUT =0A
-20
-20
20
20
mV
mV
ΔVLOAD
IOUT =±2A
PROTECTION
Current Limit
ILIMIT
TSD
VIN=2.5V/1.8V/1.5V
VCNTL=3.3V~5V
VCNTL=3.3V~5V
3
A
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
VREF Shutdown
125
170
35
°C
°C
ΔTSD
VIH
VIL
Enable
0.6
V
V
Shutdown Threshold
Shutdown
0.2
UNISONIC TECHNOLOGIES CO., LTD
4 of 9
QW-R101-029.A
www.unisonic.com.tw
UR6515D
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATIONS CIRCUITS
R1=R2=100KΩ, COUT=10μF(Ceramic)+1000μF under the worst case testing condition
CSS=1μF, CIN=470μF(Low ESR), CCNTL=47μF
R2
, VOUT track VREF
VIN(V)
VREF =
R1 +R2
UNISONIC TECHNOLOGIES CO., LTD
5 of 9
QW-R101-029.A
www.unisonic.com.tw
UR6515D
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
UNISONIC TECHNOLOGIES CO., LTD
6 of 9
QW-R101-029.A
www.unisonic.com.tw
UR6515D
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
UNISONIC TECHNOLOGIES CO., LTD
7 of 9
QW-R101-029.A
www.unisonic.com.tw
UR6515D
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
Output Voltage vs. Temperature
Output Voltage vs. Temperature
VIN=1.5V
0.77
0.765
0.76
0.92
VIN=1.8V
0.915
0.91
0.905
0.9
0.755
0.75
0.745
0.74
0.895
0.89
0
0
100
50
Temperature(°C)
-50
-25
25
Temperature(°C)
50
75
125
-50
-25
25
75
100 125
Output Voltage vs. Temperature
VIN=2.5V
1.27
1.265
1.26
1.255
1.25
1.245
1.24
50
Temperature(°C)
-50
-25
25
75
100 125
0
UNISONIC TECHNOLOGIES CO., LTD
8 of 9
QW-R101-029.A
www.unisonic.com.tw
UR6515D
LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
9 of 9
QW-R101-029.A
www.unisonic.com.tw
相关型号：
©2020 ICPDF网 联系我们和版权申明