- 您现在的位置：买卖IC网 > PDF目录69254 > PTH08T261WAZT (TEXAS INSTRUMENTS INC) 1-OUTPUT DC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | PTH08T261WAZT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIAT PACKAGE-10 |
| 文件页数： | 8/38页 |
| 文件大小： | 1206K |
| 代理商： | PTH08T261WAZT |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页
SLTS272F
– DECEMBER 2006 – REVISED APRIL 2011
Designing for Fast Load Transients
The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of
2.5 A/
s. The typical voltage deviation for this load transient is given in the Electrical Characteristics table using
the minimum required value of output capacitance. As the di/dt of a transient is increased, the response of a
converter
’s regulation circuit ultimately depends on its output capacitor decoupling network. This is an inherent
limitation with any dc/dc converter once the speed of the transient exceeds its bandwidth capability.
If the target application specifies a higher di/dt or lower voltage deviation, the requirement can only be met with
additional low ESR ceramic capacitor decoupling. Generally, with load steps greater than 100 A/
μs, adding
multiple 10
μF ceramic capacitors plus 10 × 1 μF, and numerous high frequency ceramics (≤ 0.1 μF) is all that is
required to soften the transient higher frequency edges. The PCB location of these capacitors in relation to the
load is critical. DSP, FPGA and ASIC vendors identify types, location and amount of capacitance required for
optimum performance. Low impedance buses, unbroken PCB copper planes, and components located as close
as possible to the high frequency devices are essential for optimizing transient performance.
Table 3. Input/Output Capacitors(1)
Capacitor Characteristics
Quantity
Max
Output Bus (2)
Max.
Capacitor Vendor,
Ripple
Working
Value
ESR
Physical
Input
Type Series (Style)
No
Turbo-
Current
Vendor Part No.
Voltage
(
F)
at 100
Size (mm)
Bus
Turbo-
Trans
at 85
°C
kHz
Trans
Cap Type(3)
(Irms)
Panasonic
FC (Radial)
25 V
1000
43m
1690mA
16
× 15
1
≥ 2
N/R(4)
EEUFC1E102S
FC (Radial)
25 V
820
38m
1655mA
12
× 20
1
≥ 1
N/R(4)
EEUFC1E821S
FC (SMD)
35 V
470
43m
1690mA
16
× 16,5
1
≥ 1
N/R(4)
EEVFC1V471N
FK (SMD)
35 V
1000
35m
1800mA
16
×16,5
1
≥ 2
N/R(4)
EEVFK1V102M
United Chemi-Con
PTB, Poly-Tantalum(SMD)
6.3 V
330
25m
2600mA
7,3
×4,3×2.8
N/R(5)
1 ~ 4
C
≥ 2(6)
6PTB337MD6TER (VO≤ 5.1V)
(7)
LXZ, Aluminum (Radial)
35 V
680
38m
1660mA
12,5
× 20
1
1 ~ 3
N/R(4)
LXZ35VB681M12X20LL
PS, Poly-Alum (Radial)
16 V
330
14m
5060mA
10
× 12,5
1
1 ~ 3
B
≥ 2(6)
16PS330MJ12
PS, Poly-Alum (Radial)
6.3 V
390
12m
5500mA
8
× 12,5
N/R(5)
1 ~ 2
B
≥ 1(6)
6PS390MH11 (VO≤ 5.1V)
(7)
PXA, Poly-Alum (SMD)
16 V
330
14m
5050mA
10
× 12,2
1
1 ~ 3
B
≥ 2(6)
PXA16VC331MJ12TP
PXA, Poly-Alum (Radial)
10 V
330
14m
4420mA
8
× 12,2
N/R(5)
1 ~ 2
B
≥ 1(6)
PXA10VC331MH12
Nichicon, Aluminum
PM (Radial)
25 V
1000
43m
1520mA
18
× 15
1
≥ 2
N/R(4)
UPM1E102MHH6
HD (Radial)
35 V
470
23m
1820mA
10
× 20
1
≥ 2
N/R(4)
UHD1V471HR
Panasonic, Poly-Aluminum
2.0 V
390
5m
4000mA
7,3
×4,3×4,2
N/R(5)
N/R(8)
B
≥ 2(6)
EEFSE0J391R(VO≤ 1.6V)
(7)
(1)
Capacitor Supplier Verification
Please verify availability of capacitors identified in this table. Capacitor suppliers may recommend alternative part numbers because of
limited availability or obsolete products.
RoHS, Lead-free and Material Details
See the capacitor suppliers regarding material composition, RoHS status, lead-free status, and manufacturing process requirements.
Component designators or part number deviations can occur when material composition or soldering requirements are updated.
(2)
Additional output capacitance must include the required 200
μF of ceramic type.
(3)
Required capacitors with TurboTrans. See the TurboTrans Application information for Capacitor Selection
Capacitor Types:
(a) Type A = (100
< capacitance × ESR ≤ 1000)
(b) Type B = (1,000
< capacitance × ESR ≤ 5,000)
(c) Type C = (5,000
< capacitance × ESR ≤ 10,000)
(4)
Aluminum Electrolytic capacitor not recommended for the TurboTrans due to higher ESR
× capacitance products. Aluminum and higher
ESR capacitors can be used in conjunction with lower ESR capacitance.
(5)
N/R
– Not recommended. The voltage rating does not meet the minimum operating limits.
(6)
Required capacitors with TurboTrans. See the TurboTrans Application information for Capacitor Selection
Capacitor Types:
(a) Type A = (100
< capacitance × ESR ≤ 1000)
(b) Type B = (1,000
< capacitance × ESR ≤ 5,000)
(c) Type C = (5,000
< capacitance × ESR ≤ 10,000)
(7)
The voltage rating of this capacitor only allows it to be used for output voltage that is equal to or less than 80% of the working voltage.
(8)
N/R
– Not recommended. The ESR value of this capacitor is below the required minimum when not using TurboTrans.
16
Copyright
2006–2011, Texas Instruments Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| PTH08T260WAS | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH12000LAST | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH12000WAS | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH12000WAZ | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH12000LAZT | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PTH-11810-B | 功能描述:罩类、盒类及壳类产品 3.58"x 3.11"x 1.77" 1-way, black RoHS:否 制造商:Bud Industries 产品:Boxes 外部深度:6.35 mm 外部宽度:6.35 mm 外部高度:2.56 mm NEMA 额定值: IP 等级: 材料:Acrylonitrile Butadiene Styrene (ABS) 颜色:Red |
| PTH-11810-G | 功能描述:罩类、盒类及壳类产品 3.58"x 3.11"x 1.77" 1-way, gray RoHS:否 制造商:Bud Industries 产品:Boxes 外部深度:6.35 mm 外部宽度:6.35 mm 外部高度:2.56 mm NEMA 额定值: IP 等级: 材料:Acrylonitrile Butadiene Styrene (ABS) 颜色:Red |
| PTH-11811-B | 功能描述:罩类、盒类及壳类产品 3.58"x 4.80"x 1.77" 2-way, black RoHS:否 制造商:Bud Industries 产品:Boxes 外部深度:6.35 mm 外部宽度:6.35 mm 外部高度:2.56 mm NEMA 额定值: IP 等级: 材料:Acrylonitrile Butadiene Styrene (ABS) 颜色:Red |
| PTH-11811-G | 功能描述:罩类、盒类及壳类产品 3.58"x 4.80"x 1.77" 2-way, gray RoHS:否 制造商:Bud Industries 产品:Boxes 外部深度:6.35 mm 外部宽度:6.35 mm 外部高度:2.56 mm NEMA 额定值: IP 等级: 材料:Acrylonitrile Butadiene Styrene (ABS) 颜色:Red |
| PTH12000L | 制造商:TI 制造商全称:Texas Instruments 功能描述:6-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module |
发布紧急采购，3分钟左右您将得到回复。