参数资料
型号: PTH08T240WAZ
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 COMPLIANT PACKAGE-11
文件页数: 11/39页
文件大小: 1366K
代理商: PTH08T240WAZ
PTH08T240W Type B Capacitors
C Capacitance
F
T
ransient
mV/A
30
6000
5000
4000
3000
2000
1000
500
400
300
200
20
10
9
8
7
6
5
4
3
2
10000
WIth TurboTrans
Without TurboTrans
30
6000
5000
4000
3000
2000
1000
500
400
300
200
20
10
9
8
7
6
5
4
3
2
10000
WIth TurboTrans
Without TurboTrans
C Capacitance
F
T
ransient
mV/A
R
TT +
40
1
* CO 1100
C
O 220 * 1
(kW)
(3)
www.ti.com ................................................................................................................................................... SLTS264J – NOVEMBER 2005 – REVISED JUNE 2009
12-V Input
5-V Input
Figure 14. Cap Type B, 1000 < C(
F)×ESR(m) ≤ 5000
Figure 15. Cap Type B, 1000 < C(
F)×ESR(m) ≤ 5000
(e.g. Polymer-Tantalum)
Table 5. Type B TurboTrans CO Values and Required RTT Selection Table
Transient Voltage Deviation (mV)
12-V Input
5-V Input
25% load step
50% load step
75% load step
CO
RTT
CO
RTT
(2.5 A)
(5 A)
(7.5 A)
Minimum
Required
Minimum
Required
Required Output
TurboTrans
Required Output
TurboTrans
Capacitance (
F)
Resistor (k
)
Capacitance (
F)
Resistor (k
)
55
110
165
220
open
220
open
40
80
120
330
57.6
360
42.2
35
70
105
400
30.9
450
23.7
30
60
90
510
16.2
560
12.7
25
50
75
680
7.32
750
5.49
20
40
60
1000
1.58
1050
0.536
15
30
45
2100
short
2600
short
10
20
30
10500
short
exceeds limit
RTT Resistor Selection
The TurboTrans resistor value, RTT can be determined from the TurboTrans programming, see Equation 3. For
VO > 3.45V please contact TI for CO and RTT values.
Where CO is the total output capacitance in F. CO values greater than or equal to 1100 F require RTT to be a
short, 0
. (RTT results in a negative value when CO > 1100F).
To ensure stability, a minimum amount of output capacitance is required for a given RTT resistor value. The value
of RTT must be calculated using the minimum required output capacitance determined from the capacitor
transient response charts above.
Copyright 2005–2009, Texas Instruments Incorporated
19
Product Folder Link(s): PTH08T240W PTH08T241W
相关PDF资料
PDF描述
PTH08T240WAH 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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相关代理商/技术参数
参数描述
PTH08T240WAZ 制造商:Texas Instruments 功能描述:DC/DC Converter
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PTH08T241WAD 功能描述:DC/DC转换器 10A 4.5V to 14V Inp Ceramic Cap Version RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸:
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