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參數(shù)資料
| 型號： | PTH04000WAH |
| 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-6 |
| 文件頁數(shù)： | 16/21頁 |
| 文件大?。?/td> | 726K |
| 代理商： | PTH04000WAH |
www.ti.com
PIN ASSIGNMENT
PTH04000W
(TopView)
1
5
2
3
4
6
SLTS247B – JUNE 2005 – REVISED OCTOBER 2007
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
This is the common ground connection for the VI and VO power connections. It is also the 0 Vdc
GND
1
reference for the Inhibit , the VO Adjust, and the Track control inputs.
This is an analog control input that enables the output voltage to follow an external voltage. This pin
becomes active typically 20 ms after the input voltage has been applied, and allows direct control of the
output voltage from 0 V up to the nominal set-point voltage. Within this range the output voltage follows
the voltage at the Track pin on a volt-for-volt basis. When the control voltage is raised above this range,
the module regulates at its set-point voltage. The feature allows the output voltage to rise
Track
2
I
simultaneously with other modules powered from the same input bus. If unused, this input should be
connected to VI.
NOTE: Due to the undervoltage lockout feature, the output of the module cannot follow its own input
voltage during power up. For more information, see the related application report (SLTA054).
VI
3
I
The positive input voltage power node to the module, which is referenced to common GND.
The Inhibit pin is an open-collector/drain-negative logic input that is referenced to GND. Applying a
low-level ground signal to this input disables the module's output. When the Inhibit control is active, the
Inhibit
4
I
input current drawn by the regulator is significantly reduced. If the Inhibit pin is left open-circuit, the
module produces an output voltage whenever a valid input source is applied.
A 1% resistor must be connected between this pin and GND (pin 1) to set the output voltage of the
module higher than 0.9 V. If left open-circuit, the output voltage defaults to this value. The temperature
VO Adjust
5
I
stability of the resistor should be 100 ppm/
°C (or better). The set-point range is from 0.9 V to 3.6 V. The
electrical specification table gives the standard resistor value for a number of common output voltages.
See the application information for further guidance.
VO
6
O
The regulated positive power output with respect to the GND node.
4
Copyright 2005–2007, Texas Instruments Incorporated
Product Folder Link(s): PTH04000W
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| PTH04000WAZ | 功能描述:DC/DC轉(zhuǎn)換器 3A 3.3/5V Input Adj Switching Regulator 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: |
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