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參數(shù)資料
| 型號(hào)： | PT6948 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 隔離反激式開(kāi)關(guān)穩(wěn)壓9V輸出 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 190K |
| 代理商： | PT6948 |
For technical support and more information, see inside back cover or visit www.ti.com
Standard Application
Features
High Efficiency Dual Output
(See Ordering Information)
Ideal Power Source for DSPs
5V/3.3V Input
6A Rated (Both Outputs)
Internal Power-up Sequencing
Single On/Off Control
Independent Adjust/Trim
Description
The PT6940 Excalibur power modules
are a series of high-efficiency dual-output
regulators, housed in a solderable space-
saving package. The dual output is ideal
for DSP applications that require a second
voltage source for a processor core.
Both outputs from the PT6940 regulator
modules are rated to deliver a full 6A load
current simultaneously, and are internally
sequenced to comply with the power-up
requirements of popular DSP ICs.
Each output can be independently
adjusted with a single external resistor, and
incorporates an output sense to compensate
for voltage drop between the regulator and
load. A short-circuit load fault at either
output will result in the coordinated
shutdown of both voltages.
Remote Sensing (Vo
1
& Vo
2
)
Soft-Start
Short-Circuit Protection
(coordinated shutdown)
27-pin Space-Saving Package
Solderable Copper Case
C
in
= Req’d 330μF * electrolytic
Co
1
/Co
2
= Req’d 330μF * electrolytic
*300μF for Oscon or low ESR tantalum
(see application notes)
PT6940 Series
6-A Dual Output 5-V/3.3-V Input
Integrated Switching Regulator
SLTS155B
Revised (4/8/2002)
Ordering Information
PT 6941
= +3.3/2.5 Volts
PT 6942
= +3.3/1.8 Volts
PT 6943
= +3.3/1.5 Volts
PT 6944
= +3.3/1.2 Volts
PT 6946
= +2.5/1.8 Volts
PT 6947
= +2.5/1.5 Volts
PT 6948
= +2.5/1.2 Volts
-Denotes models that will also operate off
3.3V input bus.
Pin Function
1
STBY*
2
Vo
1
Adjust
3
Vo
1
Sense
4
Vo
1
5
Vo
1
6
Vo
1
7
GND
8
GND
9
GND
10
GND
11
GND
12
GND
13
V
in
14
V
in
Pin
15
16
17
18
19
20
21
22
23
24
25
26
27
Function
V
in
V
in
GND
GND
GND
GND
GND
GND
Vo
2
Vo
2
Vo
2
Vo
2
Sense
Vo
2
Adjust
STBY* pin:
Open = Outputs enabled
Ground = Outputs disabled
Pin-Out Information
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
(Reference the applicable package code drawing
for the dimensions and PC layout)
Order
Suffix
N
A
C
Package
Code
(ENE)
(ENF)
(ENG)
PT6940
Co
1
330μF
+
13–16
4–6
23–25
C
IN
330μF
26
Co
2
330μF
+
3
1
Vo
1
Vo
2
L
O
A
D
L
O
A
D
Vo
2
Sense
Vo
1
Sense
V
IN
STBY*
GND
GND
+
7–12
17–22
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| PT6943N | 8 PWM 400 KHz Sync Contr in a 8-Pin TSSOP package; A IRU3037ACF with Standard Packaging |
| PT6946A | SMPS Controller |
| PT6946C | SMPS Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT6948A | 功能描述:REGULATOR 2.5/1.2V 5/3.3VIN HORZ RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PT6940 設(shè)計(jì)資源:Maxi/Mini/Micro Design Guide, Appl Manual 標(biāo)準(zhǔn)包裝:1 系列:Maxi 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?43V 電壓 - 輸入（最大）:110V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:400W 電壓 - 隔離:* 特點(diǎn):* 安裝類型:通孔 封裝/外殼:模塊 尺寸/尺寸:4.60" L x 2.20" W x 0.54" H（116.8mm x 55.9mm x 13.7mm） 包裝:散裝 工作溫度:-55°C ~ 100°C 效率:* 電源（瓦特）- 最大:* |
| PT6948C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SMPS Controller |
| PT6948N | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SMPS Controller |
| PT6955 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LED Controller |
| PT6955_10 | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:LED Driver IC |
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