參數(shù)資料
型號： PTN78060HAST
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE
封裝： DIP-7
文件頁數(shù)： 10/28頁
文件大小： 1948K
代理商： PTN78060HAST
www.ti.com
Output On/Off Inhibit
Inhibit
GND
PTN78060
1
4
6
2
3
Adjust
GND GND
VO
VI
V = 12 V
I
V = 5 V
O
Inhibit
7
5
Sense
+
L
O
A
D
CI
2.2 F
m
Ceramic
RSET
21 kW
0.05 W
1%
C
O
100 F
m
Q1
BSS138
PTN78060W, PTN78060H
SLTS229A – NOVEMBER 2004 – REVISED APRIL 2005
To use the output voltage sense feature, simply connect the VO Sense input (pin 5) to VO, close to the device
that draws the most supply current. If an external voltage sense is not desired, the VO Sense input may be left
open circuit. An internal resistor (15
or less), connected between this input and V
O, ensures that the output
remains in regulation.
With VO Sense connected, the difference between the voltage measure directly between the VO and GND, and
that measured from VO Sense to GND, represents the amount of IR-voltage drop being compensated by the
regulator. This should be limited to a maximum of 0.3 V.
Note: The external voltage sense is not designed to compensate for the forward drop of nonlinear or
frequency-dependent components that may be placed in series with the regulator's output. Examples include
OR-ing diodes, filter inductors, ferrite beads, and fuses. When these components are enclosed by the external
sense connection, they are effectively placed inside the regulation control loop. This can adversely affect the
stability of the module.
The inhibit feature can be used wherever there is a requirement for the output voltage to be turned off. The
power module functions normally when the Inhibit control (pin 3) is left open-circuit, providing a regulated output
whenever a valid source voltage is connected to VI with respect to GND. Figure 30 shows the the circuit used to
demonstrate the inhibit function. Note the discrete transistor (Q1). Turning Q1 on applies a low voltage to the
Inhibit control pin and turns the module off. The output voltage decays as the load circuit discharges the
capacitance. The current drawn at the input is reduced to typically 17 mA. If Q1 is then turned off, the module
executes a soft-start power up. A regulated output voltage is produced within 20 ms. Figure 31 shows the typical
rise in the output voltage, following the turn off of Q1. The turn off of Q1 corresponds to the fall in the waveform,
Q1 Vgs. The waveforms were measured with a 2.8-A resistive load.
Figure 30. On/Off Inhibit Control Circuit
18
相關(guān)PDF資料
PDF描述
PTN78060HAH 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE
PTN78060WAZ 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE
PTN78060HAZT 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE
PTN78060WAD 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE
PTN78060HAZ 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PTN78060HAZ 功能描述:DC/DC轉(zhuǎn)換器 3A Wide-In Wide Output Adj Module 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）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸:
PTN78060HAZT 功能描述:DC/DC轉(zhuǎn)換器 3A Wide-In Wide Output Adj Module 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）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸:
PTN78060W 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR
PTN78060W_09 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR
PTN78060WAD 功能描述:DC/DC轉(zhuǎn)換器 3-A Wide-Input Adj Swtch Reg Mod 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）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸:
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*