Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

CS1600 Scheda tecnica(PDF) 10 Page - Cirrus Logic

Il numero della parte CS1600
Spiegazioni elettronici  LOW-cost PFC Controller for Electronic Ballasts
Download  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS1600 Scheda tecnica(HTML) 10 Page - Cirrus Logic

Back Button CS1600 Datasheet HTML 6Page - Cirrus Logic CS1600 Datasheet HTML 7Page - Cirrus Logic CS1600 Datasheet HTML 8Page - Cirrus Logic CS1600 Datasheet HTML 9Page - Cirrus Logic CS1600 Datasheet HTML 10Page - Cirrus Logic CS1600 Datasheet HTML 11Page - Cirrus Logic CS1600 Datasheet HTML 12Page - Cirrus Logic CS1600 Datasheet HTML 13Page - Cirrus Logic CS1600 Datasheet HTML 14Page - Cirrus Logic Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 18 page
background image
CS1600
10
DS904A7
4.3.3
Overpower Protection
The nominal output power is estimated internally by the
CS1600 from the following equation
where
Po = rated output power of the system
η = efficiency of the boost converter = estimated as 100% by
the internal PFC algorithm
Vin(min) = minimum RMS line voltage for operation
Vlink = PFC output voltage
fmax = maximum switching frequency
LB = boost inductor used in the application
Operation estimated to be at power levels higher than that
calculated by Eq. 3 above is tracked by the IC as an
overpower condition. During this phase, the PFC output
voltage, Vlink, is reduced and will continue to decrease as the
power draw increases. When Vlink reaches its undervoltage
threshold, it goes into the start-up mode as explained in
section 4.1.1.
At this point, the overpower protection timer is activated. If this
condition continues to exist for 112 ms, the gate drive is
disabled for a period of about 3 seconds. This “hiccup” mode
of operation continues until the fault is removed.
If a value of the boost inductor other than that obtained from
Eq. 3 above is used, the total output power capability as well
as the thresholds for the different operating conditions will
scale accordingly.
4.3.4
Open/short circuit protection
The CS1600 protects the system in case the feedforward
resistor tied to the IAC pin or the feedback resistor tied to the
FB pin is open or shorted to ground.
A fault seen on the resistor going into the FB pin would imply
no current being fed into the pin, which would trigger the Vlink
undervoltage algorithm as described in Section 4.3.1.
A fault detected on the IAC pin would trigger the brownout
condition discussed in Section 4.3.5 below.
4.3.5
Brownout Protection
Brownout occurs when the current representing the rectified
input voltage, nominally 100% of the reference current used
for the output voltage, drops to 49% of its nominal value.
Detection of brownout for a period of 56 ms disables the gate
drive. The device continues to monitor the input voltage while
in this condition. The CS1600 exits the brownout mode when
the input current scales up to, and stays above 56.4% of its
nominal value for a period of 56 ms.
To minimize false detects, the brownout detection circuit
increases the brownout detection time by a factor of 1.6 mS/V
for every volt differential between the minimum operating
voltage and the brownout threshold, following half of a line
cycle of exceeding the brownout threshold. The following
diagram illustrates the brownout sequence whereby the
CS1600 enters standby, and upon recovery from brownout,
enters normal operation..
Figure 15. Brownout
4.3.6
Over-temperature Protection
Over-temperature protection is activated and PFC switching is
disabled when the die temperature of the device exceeds
125°C. There is a hysteresis of about 30°C before resumption
of normal operation.
4.4
Standby (STBY) Function
The standby (STBY) pin may be used as a means to force the
CS1600 into a non-operating, low-power state. The STBY
input should be driven by an open-collector/open-drain
device. Internal to the pin, there is a pull-up resistor connected
to the VDD pin as shown in Figure 16. A filter capacitance of
about 1000 pF is recommended while this pin is being used.
Figure 16. STBY Pin Connection
Po
αη
V
in min
()
()
×
2
×
V
link
V
in min
()
2
×
()
2f
max
L
B
V
link
×
×
×
---------------------------------------------------------
×
=
[Eq.3]
α
V
link
400V
--------------
90V
V
in min
()
--------------------
×


2
V
link
V
link
400V
--------------
90V
×
2
×


V
link
V
in min
()
2
×
---------------------------------------------------------------------
×
=
56 ms
56 ms
Start
Timer
Enter Standby
Exit Standby
Upper
Lower
Brownout
Thresholds
Start Timer
TBrownout
<1 nF
600 k
Ω
See Text
CAP
STBY
GND
CS1600


Codice articolo simile - CS1600

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Cirrus Logic
CS1600 CIRRUS-CS1600 Datasheet
251Kb / 18P
   Low-cost PFC Controller for Electronic Ballasts
CS1600-FSZ CIRRUS-CS1600-FSZ Datasheet
251Kb / 18P
   Low-cost PFC Controller for Electronic Ballasts
CS1600-FSZ CIRRUS-CS1600-FSZ Datasheet
202Kb / 18P
   Low-cost PFC Controller for Electronic Ballasts
CS1600_1006 CIRRUS-CS1600_1006 Datasheet
202Kb / 18P
   Low-cost PFC Controller for Electronic Ballasts
More results

Descrizione simile - CS1600

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Cirrus Logic
CS1600_1006 CIRRUS-CS1600_1006 Datasheet
202Kb / 18P
   Low-cost PFC Controller for Electronic Ballasts
CS1600 CIRRUS-CS1600 Datasheet
251Kb / 18P
   Low-cost PFC Controller for Electronic Ballasts
CS1601 CIRRUS-CS1601 Datasheet
816Kb / 16P
   Digital PFC Controller for Electronic Ballasts
logo
Gunter Seniconductor Gm...
TFA3351 GSG-TFA3351 Datasheet
140Kb / 12P
   IC for Electronic Ballasts
logo
KODENSHI_AUK CORP.
KKA3354 KODENSHI-KKA3354 Datasheet
235Kb / 6P
   IC for Electronic Ballasts
logo
JILIN SINO-MICROELECTRO...
3DD4243DY JSMC-3DD4243DY Datasheet
264Kb / 5P
   Electronic ballasts
logo
List of Unclassifed Man...
TFA3351 ETC2-TFA3351 Datasheet
104Kb / 12P
   IC for Electronic Ballasts
logo
Integral Corp.
ILA3354 INTEGRAL-ILA3354 Datasheet
217Kb / 6P
   IC for Electronic Ballasts
logo
IK Semicon Co., Ltd
ILA3354 IKSEMICON-ILA3354 Datasheet
219Kb / 6P
   IC for Electronic Ballasts
logo
Gunter Seniconductor Gm...
TFA3354 GSG-TFA3354 Datasheet
129Kb / 12P
   IC for Electronic Ballasts
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
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