Electronic Components Datasheet Search
  New Zealand  ▼
ALLDATASHEET.CO.NZ

X  

Preview PDF HTML

ML4812IP Datasheet(PDF) 5 Page - Micro Linear Corporation

Part # ML4812IP
Description  Power Factor Controller
PDF  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICRO-LINEAR [Micro Linear Corporation]
Direct Link  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4812IP Datasheet(HTML) 5 Page - Micro Linear Corporation

  ML4812IP Datasheet HTML 1Page - Micro Linear Corporation ML4812IP Datasheet HTML 2Page - Micro Linear Corporation ML4812IP Datasheet HTML 3Page - Micro Linear Corporation ML4812IP Datasheet HTML 4Page - Micro Linear Corporation ML4812IP Datasheet HTML 5Page - Micro Linear Corporation ML4812IP Datasheet HTML 6Page - Micro Linear Corporation ML4812IP Datasheet HTML 7Page - Micro Linear Corporation ML4812IP Datasheet HTML 8Page - Micro Linear Corporation ML4812IP Datasheet HTML 9Page - Micro Linear Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 16 page
background image
ML4812
5
FUNCTIONAL DESCRIPTION
OSCILLATOR
The ML4812 oscillator charges the external capacitor (CT)
with a current (ISET) equal to 5/RSET. When the capacitor
voltage reaches the upper threshold, the comparator
changes state and the capacitor discharges to the lower
threshold through Q1. While the capacitor is discharging,
Q2 provides a high pulse.
The Oscillator period can be described by the following
relationship:
Figure 2. Oscillator Timing Resistance vs. Frequency
Figure 1. Oscillator Block Diagram
Figure 3. Output Saturation Voltage vs. Output Current
10
SYNC
Q2
Q1
9
RT
16
CT
EXTERNAL
CLOCK
+
-
5.6V
ISET
8.4mA
CT
RT
ISET
CSYNC
RSYNC
CLOCK
tD
RAMP VALLEY
RAMP PEAK
V(CT)
10
OSCILLATOR FREQUENCY (kHz)
10
100
1000
8
5
3
2
1
10nF
20nF
5nF
2nF
1nF
85%
80%
70%
90%
15
14
13
3
2
1
0
OUTPUT CURRENT (mA)
0
200
400
800
600
VCC
VCC = 15V
80µs PULSED LOAD
120Hz RATE
GND
SOURCE SATURATION
LOAD TO GROUND
SINK SATURATION
LOAD TO VCC
TT
T
OSC
RAMP
DEADTIME
=+
where:
V
V
D
OUT
IN
ON
=
-
1
and:
T
CV
mA I
DEADTIME
T
RAMP VALLEY TO PEAK
SET
=
´
-
84
.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com