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參數資料
| 型號： | PTH04040WAST |
| 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： | ROHS COMPLIANT, DIP-20 |
| 文件頁數： | 12/22頁 |
| 文件大?。?/td> | 747K |
| 代理商： | PTH04040WAST |
For technical support and more information, see inside back cover or visit www.ti.com
60-A, 3.3/5-V Input Non-Isolated
Wide-Output Adjust Power Modules
PTH04040W
Pin Descriptions
GND:
This is the common ground connection for the
VI and Vout power connections. It is also the 0 VDC
reference for the control inputs.
V
I: The positive input voltage power node to the module,
which is referenced to common GND.
V
O: The regulated positive power output with respect to
the GND node.
Inhibit:
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 regula-
tor is significantly reduced. If the Inhibit pin is left
open-circuit, the module will produce an output when-
ever a valid input source is applied.
V
O Adjust: A 1%, 0.05-W resistor must be connected
between this pin and GND to set the output voltage
higher than the minimum value. The set-point range for
the output voltage is from 0.8 V to 3.6 V. If left open
circuit, the module output will default to its lowest output
voltage value. The resistor required for a given output
voltage may be calculated. For further information on
the adjustment and/or trimming of the output voltage,
consult the related Application Information. Note: The
specification table also gives the standard resistor values for a
number of common output voltages.
+Sense:
The sense inputs allow the regulation circuit
to compensate for voltage drop between the module and
the load. For optimal voltage accuracy +Sense should be
connected to V
O close to the load circuit. If it is left
open, a low-value internal resistor ensures that the output
remains in regulation.
–Sense:
For optimal voltage accuracy –Sense should be
connected to the ground return at the load. If it is left
open, a low-value internal resistor ensures that the out-
put remains in regulation.
UVLO Prog:
Connecting a resistor from this pin to signal
ground allows the ‘on’ threshold of the input under-volt-
age lockout (UVLO) to be adjusted higher than the
default value. For further information consult the Appli-
cation Information.
Track:
This is an analog control input that allows the
output voltage to follow another voltage during power-
up and power-down sequences. The pin is active from
0 V, up to the nominal set-point voltage. Within this
range the module’s output will follow 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 nominal output voltage. If unused this input should
be connected to V
I for a faster power-up. For further
information consult the related Application Informa-
tion.
Margin Down:
When this input is asserted to GND, the
output voltage is decreased by 5% from the nominal. The
input requires an open-collector (open-drain) interface.
It is not TTL compatible. A lower percent change can
be accommodated with a series resistor. For further in-
formation, consult the Application Information.
Margin Up:
When this input is asserted to GND, the output
voltage is increased by 5%. The input requires an open-
collector (open-drain) interface. It is not TTL compatible.
The percent change can be reduced with a series resistor.
For further information, consult the related Application
Information.
Ordering Information
Package Options (PTH04040x
)(1)
Code
Description
Pkg Ref. (2)
AH
Horiz. T/H
(EVF)
AS
SMD, Standard (3)
(EVG)
Output Voltage (PTH04040
xx)
Code
Voltage
W
0.8 V – 3.6 V (Adjust)
Notes:
(1) Add “T” to end of part number for tape and reel on SMD packages only.
(2) Reference the applicable package reference drawing for the dimensions and PC board layout
(3) “Standard” option specifies 63/37, Sn/Pb pin solder material.
SLTS238 MARCH 2005
Environmental & Absolute Maximum Ratings (Voltages are with respect to GND)
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Signal Input Voltages
Track control (pin 18)
–0.3
—
VI + 0.3
V
Operating Temperature Range
TA
Over VI Range
–40
—
85
°C
Solder Reflow Temperature
Treflow
Surface temperature of module body or pins
235 (i)
°C
Storage Temperature
TS
—
–40
—
125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
—
500 (ii)
—G’s
1 msec, Sine, mounted
Mechanical Vibration
Mil-STD-883D, Method 2007.2
—
10 (ii)
—
G’s
20-2000 Hz
Weight
—
22.5
—
grams
Flammability
—
Meets UL 94V-O
Notes:
(i) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum.
(ii) Qualification limits.
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相關代理商/技術參數 |
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| PTH04040WAZ | 功能描述:DC/DC轉換器 60A 3.3/5V-In Wide Output Adj Pwr Mdl RoHS:否 制造商:Murata 產品: 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: |
| PTH04040WAZT | 功能描述:DC/DC轉換器 2.95-5.5Vin 0.8-3.6V 2.045" x1.045"x0.357 RoHS:否 制造商:Murata 產品: 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: |
| PTH04070W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A, 3.3/5-V INPUT ADJUSTABLE SWITCHING REGULATOR |
| PTH04070W_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A, 3.3/5-V INPUT ADJUSTABLE SWITCHING REGULATOR |
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