- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄66037 > PT4313C (TEXAS INSTRUMENTS INC) 2-OUTPUT 6 W DC-DC REG PWR SUPPLY MODULE PDF資料下載
參數(shù)資料
| 型號： | PT4313C |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 6 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | SMD-9 |
| 文件頁數(shù)： | 9/10頁 |
| 文件大小： | 226K |
| 代理商： | PT4313C |
Application Notes
For technical support or further information,visit http://power.ti.com
PT4310 Series
Using the Remote On/Off Function on the
PT4310 Isolated Dual Output DC/DC Converters
For applications requiring output voltage On/Off control,
the PT4310 DC/DC converter series incorporates a
“Remote On/Off” control (pin 11). This feature can be used
when there is a requirement for the module to be switched
off without removing the applied input source voltage.
The converter operates normally with Pin 11 open-circuit,
and produces a regulated output voltage when a valid
source voltage is applied to +Vin (pin 18), with respect
to –Vin (pin 17). When a low-level 1 ground signal is
applied to pin 11, the converter output will be turned off.
Figure 2-1 shows an application schematic, which details
the typical use of the Remote On/Off function. Note the
discrete transistor (Q1). The control pin has its own
internal pull-up, and must be controlled with an open-
collector or open-drain device (See notes 2 & 3). Table 2-1
gives the input requirements.
When placed in the “Off” state, the standby current drawn
from the input source is typically reduced to less than 1 mA.
Table 2-1; Remote On/Off Control Requirements 1
Parameter
Min
Typ
Max
Disable
–0.1 V
—
1 V
Enable
5 V 3
—
Open-Circuit 2
Vo/c [Open-Circuit]
—
10 V
Iin [pin 11 at –Vin]
—
–200 A
—
Notes:
1. The Remote On/Off control uses –Vin (pin 17) as its
ground reference. All voltages specified are with respect
to –Vin.
2. Use an open-collector device (preferably a discrete
transistor) for the Remote On/Off input. Do not connect
a pull-up resistor directly to pin 11.
3. The Remote On/Off pin may be controlled with devices that
have a totem-pole output providing that a blocking
diode is used. The blocking diode is required to prevent
current from being injected into On/Off control pin.
Note: For TTL devices a pull-up may be required on the
cathode side of the blocking diode. This is to guarantee a
minimum enable voltage at pin 11 (See Figure 2-1).
4. The PT4310 converters incorporate an “Under-Voltage
Lockout” (UVLO). The UVLO will keep the module
off when the input voltage to the converter is low,
regardless of the state of the Remote On/Off control.
Table 2-2 gives the UVLO input voltage thresholds.
Figure 2-1
Turn-On Time:
In the circuit of Figure 2-1, turning Q1 on
applies a low-voltage to pin 11 and disables the converter
output. Correspondingly, turning Q1 off allows the con-
verter to power up and produce a regulated output voltage
within 50 ms. Although the rise-time of the output is short
(<1ms), the delay time will vary depending upon the input
voltage and the module’s internal timing. Figure 2-2
shows response of the +5-V output from the PT4311
(±5 V), following the turn-off of Q1 at time t =0. The
waveform was measured with a 48 Vdc input voltage,
and 0.25-Adc resistive load at both the positive and
negative outputs.
Figure 2-2
R1
10k
Q1
BSS138
+V
o
-V
o
+V
in
-V
in
Vdd
1 =OFF
Note 1
U1a
Note 1
D1
1N4148 #
# or similar low-leakage PIN diode
PT4310
+Vin
-Vin
±Vo
Adjust
11
17
18
1
2
3
COM
Remote
On/Off
12
Vo
1 ( + )
Vo
2 ( – )
0
5
10
15
20
25
30
time (milli-secs)
VO (2V/Div)
delay time
Table 2-2; UVLO Thresholds 4
Series
Vin Range
UVLO Threshold
PT4310
38 – 75 V
36 ±2 V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT4471C | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PT4474A | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PT4475C | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PT4481N | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PT4481N | DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT4314 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:6-W Low-Profile Dual-Output Isolated DC/DC Converter |
| PT4314A | 功能描述:DC/DC轉(zhuǎn)換器 (+/-)24V 6W 48V-Inp Iso DC/DC Converter RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PT4314C | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 (+/-)24V 6W 48V-Inp Iso DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| PT4316 | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| PT4316-S | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。