參數(shù)資料
型號(hào)： PTH08T240FAS
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
文件頁(yè)數(shù)： 36/39頁(yè)
文件大?。?/td> 1345K
代理商： PTH08T240FAS
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PTH08T240F
(Top View)
SLTS277D – DECEMBER 2006 – REVISED MARCH 2009 ............................................................................................................................................... www.ti.com
TERMINAL FUNCTIONS
TERMINAL
DESCRIPTION
NAME
NO.
VI
2
The positive input voltage power node to the module, which is referenced to common GND.
VO
5
The regulated positive power output with respect to GND.
This is the common ground connection for the VI and VO power connections. It is also the 0 Vdc reference for the
GND
3, 4
control inputs.
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 and turns off the output voltage. When the Inhibit control
is active, the input current drawn by the regulator is significantly reduced. If the Inhibit pin is left open-circuit, the
Inhibit(1) and
module produces an output whenever a valid input source is applied.
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UVLO
This pin is also used for input undervoltage lockout (UVLO) programming. Connecting a resistor from this pin to
GND (pin 3) allows the ON threshold of the UVLO to be adjusted higher than the default value. For more
information, see the Application Information section.
A 0.05 W 1% resistor must be directly connected between this pin and pin 7 (–Sense) to set the output voltage
to a value higher than 0.69 V. The temperature stability of the resistor should be 100 ppm/°C (or better). The
setpoint range for the output voltage is from 0.69 V to 2.0 V. If left open circuit, the output voltage will default to
Vo Adjust
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its lowest value. For further information, on output voltage adjustment see the related application note.
The specification table gives the preferred resistor values for a number of standard output voltages.
The sense input allows the regulation circuit to compensate for voltage drop between the module and the load.
+ Sense
6
For optimal voltage accuracy, +Sense must be connected to VO, very close to the load.
The sense input allows the regulation circuit to compensate for voltage drop between the module and the load.
– Sense
7
For optimal voltage accuracy –Sense must be connected to GND (pin 4) very close to the module (within 10 cm).
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 module's output voltage follows the voltage at
Track
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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 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 note.
This input pin adjusts the transient response of the regulator. To activate the TurboTrans feature, a 1%,
50 mW resistor must be connected between this pin and pin 6 (+Sense) very close to the module. For a given
value of output capacitance, a reduction in peak output voltage deviation is achieved by utililizing this feature.
TurboTrans
9
The resistance requirement can be selected from the TurboTrans resistor table in the Application Information
section. External capacitance must never be connected to this pin unless the TurboTrans resistor value is a
short, 0
.
This input pin sychronizes the switching frequency of the module to an external clock frequency. The SmartSync
feature can be used to sychronize the switching fequency of multiple PTH08T240F modules, aiding EMI noise
SmartSync
1
suppression efforts. If unused, this pin should be connected to GND (pin 3). For more information, please review
the Application Information section.
(1)
Denotes negative logic: Open = Normal operation, Ground = Function active
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Copyright 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH08T240F
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PTH08T240FAST 功能描述:DC/DC轉(zhuǎn)換器 10-A 4.5-14V Input Pwr 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(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:
PTH08T240FAZ 功能描述:DC/DC轉(zhuǎn)換器 10-A 4.5-14V Input Pwr 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(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:
PTH08T240FAZT 功能描述:DC/DC轉(zhuǎn)換器 10-A 4.5-14V Input Pwr 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(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:
PTH08T240W 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS?
PTH08T240W_07 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS
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