参数资料
型号: PTH08T220WAZ
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, PLASTIC, DIP-11
文件页数: 13/38页
文件大小: 1290K
代理商: PTH08T220WAZ
PTH08T220W Type C Capacitors
T
ransient
mV/A
C Capacitance
F
200
300
400
500
600
700
1000
800 900
2000
3000
4000
5000
6000
7000 8000 9000
10000
VI = 12 V
Without TurboTrans
With TurboTrans
2
7
3
4
5
9
8
6
10
20
T
ransient
mV/A
C Capacitance
F
VI = 5 V
200
300
400
500
600
700
1000
800 900
2000
3000
4000
5000
6000
7000 8000 9000
10000
Without TurboTrans
With TurboTrans
2
7
3
4
5
9
8
6
10
20
R
TT + 40
1
* CO 1980
5
C
O )880
1980
* 1
(kW)
(4)
SLTS252K – NOVEMBER 2005 – REVISED JUNE 2009................................................................................................................................................... www.ti.com
12-V INPUT
5-V INPUT
Figure 17. Capacitor Type C,
Figure 18. Capacitor Type C,
5000 < C(
F)×ESR(m) ≤ 10,000(e.g. OS-CON)
5000 < C(
F)×ESR(m) ≤ 10,000(e.g. OS-CON)
Table 6. Type C TurboTrans CO Values and Required RTT Selection Table
Transient Voltage Deviation (mV)
12 Volt Input
5 Volt Input
25% Load
50% Load
75% Load
CO
RTT
CO
RTT
Step
Minimum Required
Required
Minimum Required
Required
(4 A)
(8 A)
(12 A)
Output
TurboTrans
Output
TurboTrans
Capacitance (
F)
Resistor (k
)
Capacitance (
F)
Resistor (k
)
65
125
190
220
open
220
open
50
100
150
270
274
330
121
40
80
120
330
121
550
34.8
30
60
90
470
48.7
630
26.1
25
50
75
600
28.7
800
16.2
20
40
60
800
16.2
1150
7.15
15
30
45
1300
5.11
1700
1.50
10
20
30
7500
short
10000
short
RTT Resistor Selection
For VO ≤ 3.45V the TurboTrans resistor value, RTT can be determined from the TurboTrans programming
Equation 4. For VO > 3.45 V please contact TI for CO and RTT values.
Where CO is the total output capacitance in F. CO values greater than or equal to 1980 F require RTT to be a
short,
0
.
results
in
a
negative
value
for
RTT
when
CO
>
1980
F).
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 Figure 17 and
20
Copyright 2005–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH08T220W PTH08T221W
相关PDF资料
PDF描述
PTH08T221WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T221WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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PTH08T220WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T220WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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