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參數(shù)資料
| 型號： | PTH12020WAS |
| 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-10 |
| 文件頁數(shù)： | 11/27頁 |
| 文件大小： | 930K |
| 代理商： | PTH12020WAS |
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Up
Dn
Sense
V =12V
I
ASIC
VC ORE
VC CI O
I 2
O
PTH12010L
1
10
4
5
6
2
3
9
Tra ck
GND
Inhibit
7
Vadj
Sense
+
V 1=3.3V
O
V 2=1.8V
O
R1
2kW
R5
10k0
R4
100kW
R3
11k0
R1
130 W
C2
330 F
m
C4
330 F
m
C6
0.68 F
m
C5
0.1 F
m
C3
330 F
m
C1
330 F
m
+
PTH12020W
7
10
4
5
6
2
3
9
Tra ck
V
I
V
I
V
O
V
O
GND
Inhibit
1
Adjust
+
TL7702B
V
CC
GND
SENSE
RESIN
REF
CT
RESET
8
7
2
1
3
5
6
4
+
8
www.ti.com ............................................................................................................................................................. SLTS208I – MAY 2003 – REVISED MARCH 2009
Figure 18. Application Circuit Demonstrating Prebias Startup
Notes:
1. Output prebias holdoff is an inherent feature to all PTH120x0L and PTV120x0W/L modules. It has now been
incorporated into all modules (including W-suffix modules with part numbers of the form PTH120x0W), with a
production lot date code of 0423 or later.
2. The prebias start-up feature is not compatible with Auto-Track. If the rise in the output is limited by the
voltage applied to the Track control pin, the output sinks current during the period that the track control
voltage is below that of the back-feeding source. For this reason, it is recommended that Auto-Track be
disabled when not being used. This is accomplished by connecting the Track pin to the input voltage, VI. This
raises the Track pin voltage well above the set-point voltage prior to the module’s start up, thereby, defeating
the Auto-Track feature.
3. To further ensure that the regulator's output does not sink current when power is first applied (even with a
ground signal applied to the Inhibit control pin), the input voltage must always be greater than the applied
prebias source. This condition must exist throughout the power-up sequence of the power system.
Copyright 2003–2009, Texas Instruments Incorporated
19
Product Folder Link(s) :PTH12020W/L
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| PTH12020WAST | 功能描述:DC/DC轉(zhuǎn)換器 1.2 to 5.5V 18A 12V Input WideAdj 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: |
| PTH12020WAZ | 功能描述:DC/DC轉(zhuǎn)換器 ADJ 1.2-5.5V 18A Surface-Mount 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: |
| PTH12020WAZT | 功能描述:DC/DC轉(zhuǎn)換器 10.8-13.2Vin 5.5V18A 1.495" x0.870"x0.354 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: |
| PTH12030 | 制造商:EMERSON-NETWORKPOWER 制造商全稱:Emerson Network Power 功能描述:DC-DC CONVERTERS |
| PTH12030L | 制造商:TI 制造商全稱:Texas Instruments 功能描述:26-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT ADJUST POWER MODULE |
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