Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

CS5106LSWR24 Datenblatt(PDF) 10 Page - Cherry Semiconductor Corporation

Teilenummer CS5106LSWR24
Bauteilbeschribung  Multi-Feature, Synchronous plus Auxiliary PWM Controller
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  CHERRY [Cherry Semiconductor Corporation]
Direct Link  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS5106LSWR24 Datenblatt(HTML) 10 Page - Cherry Semiconductor Corporation

Back Button CS5106LSWR24 Datasheet HTML 4Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 5Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 6Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 7Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 8Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 9Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 10Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 11Page - Cherry Semiconductor Corporation CS5106LSWR24 Datasheet HTML 12Page - Cherry Semiconductor Corporation  
Zoom Inzoom in Zoom Outzoom out
 10 / 12 page
background image
FADJ and DLYSET Leads
Amplifier A2 and transistor N3 create a current source fol-
lower whose output is FADJ. An external resistor from
FADJ to ground completes the loop. The voltage across the
resistor is set by a buffered, trimmed, precision reference.
In this fashion, an accurate current is created which is used
to charge and discharge an internal capacitor thereby creat-
ing an oscillator with a tight frequency tolerance. For FADJ
resistor value selection, see Figure 3. Transistor N2 is in
parallel with N3 and is used to created an independent cur-
rent across the resistor from DLYSET to ground. This cur-
rent is used to program the GATE non-overlap delay
blocks in the main PWM drivers. For DLYSET resistor
value selection, see Figure 4.
Figure 3: SYNCOUT Frequency vs. FADJ Resistors
Figure 4: GATE Non-Overlap Time vs. DLYSET Resistance
Oscillator
The oscillator generates two clock signals which are 180
degrees out of phase with respect to time. One clock signal
feeds the main driver and the other feeds the auxiliary
driver. Because the drivers are never turned on at the same
time, ground noise and supply noise is minimized. The
clock signals are actually 100ns pulse spikes. These spikes
create a narrow driver turn-on window. This narrow win-
dow prevents the driver from spurious turn on in the mid-
dle of a clock cycle. The oscillator can be synchronized by
an external clock (slave) or drive the clocks of other con-
trollers (master). See Figure 5 for the relationship between
SYNC, CLK, and GATE waveforms.
Figure 5: SYNC, GATE and CLOCK waveforms
.
SYNCIN and SYNCOUT Leads
Multiple supplies can be synchronized to one supply by
using the SYNC leads. The SYNCIN and SYNCOUT pulses
are always 180 degrees out of phase. The SYNCIN input is
always in phase with the clock signal for the main driver
and the SYNCOUT output is always in phase with the clock
signal for the auxiliary driver. If the IC is being used as a
slave, the incoming frequency must be within +10%, -20%
of the programmed frequency set by its own FADJ resistor.
If the frequency on the SYNCIN lead is outside the internal
frequency by +25%, -35%, the SYNCIN input will be
ignored. If the SYNC signal stops while the power supplies
are in synchronized operation, the synchronized supplies
will stop and restart free running. If the SYNCIN signal
drifts out of frequency specification while the power sup-
plies are in synchronized operation, the synchronized sup-
plies will begin to free run without restarting.
Slope Compensation
DC-DC converters with current mode control require slope
compensation to avoid instability at duty cycles greater
than 50%. A slope is added to the current sense waveform
(or subtracted from the voltage waveform) that is equal to
a percentage (75% typical) of the down slope of the induc-
tor current. In the application diagram shown, the boot-
strap (flyback) transformer inductance can be chosen so
that the duty cycle never exceeds 50% and therefore does
not require slope compensation. The buck indicator in the
forward converter would typically be chosen to work in
continuous conduction mode with a maximum duty cycle
of 50-60% and would require slope compensation. Slope
compensation is accomplished as follows: R9 and C9 form
a ramp waveform rising each time GATE 2 turns on. C9 is
discharged through D3 to the same level each cycle regard-
less of duty cycle. R10 and R11 are chosen to control the
amount of slope compensation. C10 provides filtering for
noise and turn-on spikes. To calculate the required slope
compensation, calculate the buck indicator down current
and the corresponding voltage slope at the current sense
resistor - R12.
The buck inductor down slope is:
Inductor_Slope =
)A
µs
(
VOUT + VQ5
L1(µH)
SYNCOUT
CLK1
GATE1
CLK2
GATE2
GATE2B
SYNCIN
Resistance (k
W)
80
70
60
50
40
30
20
10
0
010
515
20
25
30
35
40
45
50
1100
900
800
600
500
400
300
200
100
0
010
20
30
40
50
80
70
700
1000
Resistance k
W
60
Theory of Application: continued
10


Ähnliche Teilenummer - CS5106LSWR24

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Cherry Semiconductor Co...
CS5101 CHERRY-CS5101 Datasheet
153Kb / 7P
   Secondary Side Post Regulator for AC/DC and DC/DC Multiple Output Converters
logo
ON Semiconductor
CS5101 ONSEMI-CS5101 Datasheet
142Kb / 9P
   Secondary Side Post Regulator for AC/DC and DC/DC Multiple Output Converters
October, 2006 ??Rev. 6
logo
Cirrus Logic
CS5101A CIRRUS-CS5101A Datasheet
466Kb / 40P
   16-Bit, 100kHz/ 20kHz A/D Converters
CS5101A CIRRUS-CS5101A Datasheet
574Kb / 39P
   16-bit, 100 kSps / 20 kSps A/D Converters
CS5101A-AL8 CIRRUS-CS5101A-AL8 Datasheet
466Kb / 40P
   16-Bit, 100kHz/ 20kHz A/D Converters
More results

Ähnliche Beschreibung - CS5106LSWR24

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Diodes Incorporated
AP2014 DIODES-AP2014_09 Datasheet
270Kb / 14P
   SYNCHRONOUS PWM CONTROLLER
AP2014/A Rev. 5
logo
ON Semiconductor
NCP3011 ONSEMI-NCP3011_15 Datasheet
369Kb / 28P
   Synchronous PWM Controller
September, 2015 ??Rev. 4
NCV3011DTBR2G ONSEMI-NCV3011DTBR2G Datasheet
412Kb / 28P
   Synchronous PWM Controller
June, 2011 ??Rev. 3
logo
Anachip Corp
AP2002 ANACHIP-AP2002 Datasheet
180Kb / 7P
   Synchronous PWM Controller
AP2007 ANACHIP-AP2007 Datasheet
181Kb / 7P
   Synchronous PWM Controller
logo
ON Semiconductor
NCP3012 ONSEMI-NCP3012 Datasheet
354Kb / 26P
   Synchronous PWM Controller
May, 2010 ??Rev. 0
NCV3020ADR2G ONSEMI-NCV3020ADR2G Datasheet
778Kb / 23P
   Synchronous PWM Controller
January, 2013 ??Rev. 6
NCP3030A ONSEMI-NCP3030A Datasheet
375Kb / 23P
   Synchronous PWM Controller
April, 2011 ??Rev. 1
logo
Anachip Corp
AP2003 ANACHIP-AP2003 Datasheet
132Kb / 6P
   Synchronous PWM Controller
logo
ON Semiconductor
NCP3020A ONSEMI-NCP3020A_10 Datasheet
759Kb / 23P
   Synchronous PWM Controller
November, 2010 ??Rev. 3
More results


Html Pages

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


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
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