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参数资料
| 型号： | PTH08T240WAZ |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-11 |
| 文件页数： | 38/39页 |
| 文件大小： | 1366K |
| 代理商： | PTH08T240WAZ |
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PTH08T240W/241W
(Top View)
SLTS264J – NOVEMBER 2005 – REVISED JUNE 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 pin7 (–Sense) to set the output voltage to
a value higher than 0.69V. The temperature stability of the resistor should be 100 ppm/°C (or better). The
setpoint range for the output voltage is from 0.69V to 5.5V. If left open circuit, the output voltage will default to its
Vo Adjust
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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 (pin4) very close to the module (within 10cm).
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%, 50mW
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. If unused,
TurboTrans
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this pin must be left open-circuit. 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 PTH08T240/241W modules, aiding EMI
SmartSync
1
noise suppression efforts. If unused, this pin should be connected to GND (pin3). For more information, please
review the Application Information section.
(1)
Denotes negative logic: Open = Normal operation, Ground = Function active
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Copyright 2005–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH08T240W PTH08T241W
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PTH08T240WAZ | 制造商:Texas Instruments 功能描述:DC/DC Converter |
| PTH08T240WAZT | 功能描述:DC/DC转换器 10A 4.5-14V-Input Wide-Out Adj Pwr Mdl RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PTH08T241W | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS |
| PTH08T241WAD | 功能描述:DC/DC转换器 10A 4.5V to 14V Inp Ceramic Cap Version RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PTH08T241WAS | 功能描述:DC/DC转换器 10A 4.5V to 14V Inp Ceramic Cap Version RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
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