Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

BA7805FP-E2 Datasheet(PDF) 10 Page - Rohm

Part No. BA7805FP-E2
Description  1A Output 78 series Regulators 500mA Output 78 series Regulators
Download  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BA7805FP-E2 Datasheet(HTML) 10 Page - Rohm

Back Button BA7805FP-E2 Datasheet HTML 6Page - Rohm BA7805FP-E2 Datasheet HTML 7Page - Rohm BA7805FP-E2 Datasheet HTML 8Page - Rohm BA7805FP-E2 Datasheet HTML 9Page - Rohm BA7805FP-E2 Datasheet HTML 10Page - Rohm BA7805FP-E2 Datasheet HTML 11Page - Rohm BA7805FP-E2 Datasheet HTML 12Page - Rohm BA7805FP-E2 Datasheet HTML 13Page - Rohm BA7805FP-E2 Datasheet HTML 14Page - Rohm Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 15 page
background image
BA78□□Series,BA78M□□Series
Technical Note
10/12
www.rohm.com
2012.03 - Rev.C
© 2012 ROHM Co., Ltd. All rights reserved.
●Thermal design
Refer to the following thermal derating curves (Fig. 25, 26), when using in the status of Ta=25℃ or more.
The characteristic of IC is greatly related to the operating temperature.
When it is used in over maximum junction temperature, the elements inside IC might become weaker and be destroyed.
It is recommended to take into consideration thermal of IC.
Note that the temperatures are in the allowed temperature limits and operated within Pd.
It is necessary to operate it at junction temperature Tjmax or less to prevent IC from the thermal destruction.
Please operate IC within permissible loss Pd because the junction temperature Tj might become considerably a high
temperature even if ambient temperature Ta is normal temperature (25℃).
Power consumption Pc(W) may be expressed by the equation shown below:
Pc=(Vin-Vo)×Io+ Vin×Ib
permissible loss Pd≧Pc
Maximum Output current IoMAX can be calculated in thermal design.
・Calculation example
Ex.1)
Ta=85℃, Vin =7.5V, Vo=5.0V
Io≦400mA
Be sure to use this IC within a power dissipation at the range of operating temperature.
Fig.25
Thermal derating curve (TO220CP-3)
Fig.26
Thermal derating curve (TO252-3)
●Terminal Setting and Cautions
・INPUT
It is recommended that a capacitor (about 0.33uF) be inserted between INPUT and COMMON.
The value of capacitor is designed suitable for the actual application.
・OUTPUT
It is recommended that a capacitor (about 0.1uF) be inserted between OUTPUT and COMMON.
A tantalum capacitor can also be used for this pin because insufficient capacitors may cause oscillation by a temperature
change.
・COMMON
Keep the no voltage drop between Ground level of set board and IC.
When there is the voltage difference, setting voltage becomes inaccuracy and unstable.
It is recommended to connect by wide, short pattern, and lower the inpedance.
Vo
Vin
Ib
Vin
Pd
Io
5.0
7.5
4.5m
7.5
1.04
Io
Vin : Input Voltage
Vo
: Output Voltage
Io
: Output Current
Ib
: Bias current
Using TO220CP-3 alone
θja=62.5℃/W→16mW/℃
Pd=1.04W at 85℃
12.5
10
7.5
5
2.5
0
0
25
50
75
125
100
150
AMBIENT TEMPERATURE : Ta[℃]
(2) 1.0
(1) 10.0
(1) Mounted on infinity Alminium heat sinkθj-c=12.5 (℃/W)
(2) Using an IC aloneθj-a=125.0℃/W
25
20
15
10
5
0
0
25
50
75
125
100
150
AMBIENT TEMPERATURE : Ta[℃]
(2) 2.0
(1) 22.0
(1) Mounted on infinity Alminium heat sinkθj-c=5.7(℃/W)
(2) Using an IC aloneθj-a=62.5℃/W


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn