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參數資料
| 型號： | PTB48520WAS |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | DIP-10 |
| 文件頁數： | 15/18頁 |
| 文件大?。?/td> | 427K |
| 代理商： | PTB48520WAS |
www.ti.com
Safe Operating Areas; VI =48V(2)
20
30
40
50
60
70
80
90
05
25
IO Output Current A
Airflow
Ambient
T
em
p
er
at
u
re
5C
T
A
10
15
20
400 LFM
200 LFM
100 LFM
Nat Conv
20
30
40
50
60
70
80
90
02
10
IO Output Current A
Airflow
Ambient
T
em
p
er
at
u
re
5C
T
A
468
100 LFM
Nat Conv
APPLICATION INFORMATION
Operating Features and System Considerations for the PTB48520W DC/DC Converter
Overcurrent Protection
Output Overvoltage Protection
Differential Output Voltage Sense
PTB48520W
SLTS233A–NOVEMBER 2004–REVISED APRIL 2005
TYPICAL CHARACTERISTICS (continued)
TEMPERATURE DERATING
vs
OUTPUT CURRENT (VO Bus)
OUTPUT CURRENT (VO Seq)
Figure 4.
Figure 5.
(2) The temperature derating curves represent operating conditions at which internal components are at or below manufacturer's maximum
rated operating temperature. See Figure 4 and Figure 5.
To protect against load faults, these converters incorporate output overcurrent protection. Applying a load to the
output that exceeds the converter overcurrent threshold (see applicable specification) causes the output voltage
to momentarily fold back, and then shut down. Following shutdown, the module periodically attempts to
automatically recover by initiating a soft-start power up. This is often described as a hiccup mode of operation,
whereby the module continues in the cycle of successive shutdown and power up until the load fault is removed.
Once the fault is removed, the converter automatically recovers and returns to normal operation.
The converter continually monitors for an output overvoltage (OV) condition, directly across the +VO Bus output.
The OV threshold automatically tracks the output voltage set point to a level that is 25% higher than that set by
the external R(SET) voltage adjust resistor. If the output voltage exceeds this threshold, the converter is
immediately shut down and remains in a latched-off state. To resume normal operation, the converter must be
actively reset. This can only be done by momentarily removing the input power to the converter. For fail-safe
operation and redundancy, the OV protection uses circuitry that is independent of the converter internal feedback
loop.
A differential remote sense allows a converter regulation circuitry to compensate for limited amounts of IR drop,
that may be incurred between the converter and load, in either the positive or return PCB traces. Connecting the
(+)Sense and (–)Sense pins to the respective positive and ground reference of the load terminals improves the
load regulation of the converter output voltage at that connection point. The (–)Sense pin should always be
connected to the VO COM. The (+)Sense pin may be connected to either the +VO Bus or +VO Seq outputs.
When the (+)Sense pin is connected to the VO Seq output, the voltage at VO Bus voltage regulates slightly
6
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| PTB48530AAH | 功能描述:PTB48530AAH RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:- 設計資源:VI-200, VI-J00 Design Guide, Appl Manual 標準包裝:1 系列:* 類型:隔離 輸出數:1 電壓 - 輸入（最?。?55V 電壓 - 輸入（最大）:100V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:200W 電壓 - 隔離:* 特點:* 安裝類型:通孔 封裝/外殼:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包裝:散裝 工作溫度:-55°C ~ 85°C 效率:* 電源（瓦特）- 最大:* |
| PTB48530AAS | 功能描述:PTB48530AAS RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:- 設計資源:VI-200, VI-J00 Design Guide, Appl Manual 標準包裝:1 系列:* 類型:隔離 輸出數:1 電壓 - 輸入（最?。?55V 電壓 - 輸入（最大）:100V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:200W 電壓 - 隔離:* 特點:* 安裝類型:通孔 封裝/外殼:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包裝:散裝 工作溫度:-55°C ~ 85°C 效率:* 電源（瓦特）- 最大:* |
| PTB48530AAZ | 功能描述:CONV DC-DC 48V 27W DUAL 7-SMD RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PTB48530A 標準包裝:500 系列:Econoline R0.25S 類型:隔離 輸出數:1 電壓 - 輸入（最小）:21.6V 電壓 - 輸入（最大）:26.4V Voltage - Output 1:3.3V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:76mA 電源（瓦） - 制造商系列:0.25W，1/4W 電壓 - 隔離:1kV（1000V） 特點:- 安裝類型:表面貼裝 封裝/外殼:8-DIP SMD 模塊 尺寸/尺寸:0.49" L x 0.42" W x 0.28" H（12.8mm x 10.7mm x 7.0mm） 包裝:帶卷 (TR) 工作溫度:-40°C ~ 100°C 效率:60 ~ 70% 電源（瓦特）- 最大:0.25W |
| PTB48530BAS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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