- 您現在的位置：買賣IC網 > PDF目錄67334 > 5962-9167102QXA (NATIONAL SEMICONDUCTOR CORP) 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, MBFM2 PDF資料下載
參數資料
| 型號： | 5962-9167102QXA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, MBFM2 |
| 封裝： | TO-3, 4 PIN |
| 文件頁數： | 5/29頁 |
| 文件大?。?/td> | 658K |
| 代理商： | 5962-9167102QXA |
第1頁第2頁第3頁第4頁當前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
(Continued)
PROCEDURE (Adjustable Output Voltage Versions)
EXAMPLE (Adjustable Output Voltage Versions)
Given:
V
OUT = Regulated Output Voltage
V
IN(Max) = Maximum Input Voltage
I
LOAD(Max) = Maximum Load Current
F = Switching Frequency
(Fixed at 52 kHz)
Given:
V
OUT = 10V
V
IN(Max) = 25V
I
LOAD(Max) = 1A
F = 52 kHz
1. Programming Output Voltage
(Selecting R1 and R2, as
shown in Figure 2 )
Use the following formula to select the appropriate resistor
values.
R
1 can be between 1k and 5k. (For best temperature coeffi-
cient and stability with time, use 1% metal film resistors)
1.Programming Output Voltage
(Selecting R1 and R2)
R2 = 1k (8.13 1) = 7.13k, closest 1% value is 7.15k
2. Inductor Selection (L1)
A. Calculate the inductor Volt
microsecond constant,
E
T(V s), from the following formula:
B. Use the E
T value from the previous formula and match
it with the E
T number on the vertical axis of the Inductor
Value Selection Guide shown in
Figure 7.
C. On the horizontal axis, select the maximum load current.
D. Identify the inductance region intersected by the E
T
value and the maximum load current value, and note the in-
ductor code for that region.
E. Identify the inductor value from the inductor code, and se-
lect an appropriate inductor from the table shown in
Figure 9.
Part numbers are listed for three inductor manufacturers.
The inductor chosen must be rated for operation at the
LM2575 switching frequency (52 kHz) and for a current rat-
ing of 1.15 x I
LOAD. For additional inductor information, see
the inductor section in the application hints section of this
data sheet.
2. Inductor Selection (L1)
A. Calculate E
T(V s)
B. E
T = 115 V s
C. I
LOAD(Max) = 1A
D. Inductance Region = H470
E. Inductor Value = 470 H
Choose from AIE part
#430-0634, Pulse Engineering part #PE-53118, or Renco
part #RL-1961.
www.national.com
13
相關PDF資料 |
PDF描述 |
|---|---|
| 5962-9167401QEA | 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, CDIP16 |
| 5962-9167401QXA | 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, MBFM2 |
| 5962-9167401QZA | 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, CDSO16 |
| 5962-9168901MXA | BRUSHLESS DC MOTOR CONTROLLER, 2 A, CDIP28 |
| 5962-9168901QXA | BRUSHLESS DC MOTOR CONTROLLER, 0.2 A, CDIP28 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 5962-9167201QEA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| 5962-9167601HXA | 制造商:Micropac Industries Inc 功能描述:Optocoupler Logic-Out Open Collector DC-IN 1-CH 6-Pin 制造商:Micropac Industries, Inc. 功能描述:Optocoupler Logic-Out Open Collector DC-IN 1-CH 6-Pin |
| 59629167702MZA | 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Async Dual Depth/Width Uni-Dir 8K x 9 32-Pin LLCC |
| 5962-9167703MXA | 制造商:Integrated Device Technology Inc 功能描述:FIFO ASYNC DUAL DEPTH/WIDTH UNI-DIR 8KX9 28CDIP - Rail/Tube |
| 5962-9167703MYA | 制造商:Integrated Device Technology Inc 功能描述:FIFO ASYNC DUAL DEPTH/WIDTH UNI-DIR 8KX9 28CDIP - Rail/Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。