参数资料
型号: PTH04T261WAZ
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-10
文件页数: 13/36页
文件大小: 1162K
代理商: PTH04T261WAZ
C Capacitance
F
T
ransient
mV/A
Without TurboTrans
With TurboTrans
40
30
20
4
5000
4000
3000
1000
900
300
200
500
400
700
600
800
2000
10
6
5
8
7
9
C Capacitance
F
T
ransient
mV/A
Without TurboTrans
With TurboTrans
40
30
20
4
5000
4000
3000
1000
900
300
200
500
400
700
600
800
2000
10
6
5
8
7
9
R
TT + 40
1 * CO 1250
C
O
250 * 1
kW
(4)
SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com
PTH04T260W Type C Capacitors
5-V Input
3.3-V Input
Figure 14. Capacitor Type C, 5000 < C(
F) x ESR(m) ≤
Figure 15. Capacitor Type C, 5000 < C(
F) x ESR(m) ≤
10,000
(e.g. OS-CON)
Table 6. Type C TurboTrans CO Values and Required RTT Selection Table
Transient Voltage Deviation (mV)
5-V Input
3.3 V Input
CO
RTT
CO
RTT
25% load step
50% load step
75% load step
Minimum
Required
Minimum
Required
(0.75 A)
(1.5 A)
(2.25 A)
Required Output
TurboTrans
Required Output
TurboTrans
Capacitance (
F)
Resistor (k
)
Capacitance (
F)
Resistor (k
)
30
60
90
250
open
250
open
25
50
75
270
487
250
open
20
40
60
360
66.5
350
76.8
15
30
45
520
21.5
520
21.5
10
20
30
890
4.53
920
3.92
8
16
24
1200
0.549
1300
short
6
12
18
3050
short
3700
short
RTT Resistor Selection
The TurboTrans resistor value, RTT can be determined from the TurboTrans programming equation:
Where CO is the total output capacitance in F. CO values greater than or equal to 1250 F require RTT to be
a short, 0
.
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.
20
Copyright 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH04T260W PTH04T261W
相关PDF资料
PDF描述
PTH04T260WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T260WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T261WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T261WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH05050YAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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