Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TL3842BD Datasheet(PDF) 11 Page - Texas Instruments

Click here to check the latest version.
Part No. TL3842BD
Description  HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
Download  24 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

TL3842BD Datasheet(HTML) 11 Page - Texas Instruments

Back Button TL3842BD Datasheet HTML 7Page - Texas Instruments TL3842BD Datasheet HTML 8Page - Texas Instruments TL3842BD Datasheet HTML 9Page - Texas Instruments TL3842BD Datasheet HTML 10Page - Texas Instruments TL3842BD Datasheet HTML 11Page - Texas Instruments TL3842BD Datasheet HTML 12Page - Texas Instruments TL3842BD Datasheet HTML 13Page - Texas Instruments TL3842BD Datasheet HTML 14Page - Texas Instruments TL3842BD Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 24 page
background image
www.ti.com
APPLICATION INFORMATION
Zi
Zf
VFB
COMP
2.5 V
0.5 mA
Error
Amplifier
+
RS
Cf
Rf
Error
Amplifier
2R
R
1 V
Current-Sense
Comparator
IS
(see Note A)
+
ISENSE
COMP
GND
CT
RT
VREF
RT/CT
GND
TL284xB, TL384xB
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
The error-amplifier configuation circuit is shown in Figure 1.
A.
Error amplifier can source or sink up to 0.5 mA.
Figure 1. Error-Amplifier Configuration
The current-sense circuit is shown in Figure 2.
A.
Peak current (IS) is determined by the formula: IS(max) = 1 V/RS
B.
A small RC filter formed by resistor Rf and capacitor Cf may be required to suppress switch transients.
Figure 2. Current-Sense Circuit
The oscillator frequency is set using the circuit shown in Figure 3. The frequency is calculated as:
f = 1 / RTCT
For RT > 5 kΩ:
f
≈ 1.72 / R
TCT
Figure 3. Oscillator Section
11
Submit Documentation Feedback


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24 


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   |   Alldatasheet API   |   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