DataSheet39.com

What is IES5521A?

This electronic component, produced by the manufacturer "IES", performs the same function as "Simple Zero Crossing Triac Control Circuit".


IES5521A Datasheet PDF - IES

Part Number IES5521A
Description Simple Zero Crossing Triac Control Circuit
Manufacturers IES 
Logo IES Logo 


There is a preview and IES5521A download ( pdf file ) link at the bottom of this page.





Total 10 Pages



Preview 1 page

No Preview Available ! IES5521A datasheet, circuit

Integrated Electronic Solutions
abbing IC’s fo
35Years
IES5521A
Simple Zero-Crossing Triac Control
Circuit with Adjustable Time-out
1 FEATURES
3 GENERAL DESCRIPTION
Time-out function stops triac operation after a set time. The IES5521A is a derivative of the OM1654A, but offering
Reset time-out by turning mains supply off and on.
Low external component count
the extra safety feature of a nominal 1 hour time-out. This
is a key safety requirement for a range of personal and
home appliance applications. The time-out function will
Constant ON cycle time, with proportional OFF time
stop the triac operation and thus prevent power from being
All ON cycles consist of an integral number of mains
applied to the heating elements.
cycles
No DC component in the mains supply
mOn chip circuit protection against triac gate spikes
Low supply current requirement
oSensor AC powered, thus minimising DC supply and
.cfiltering needs
Separate power supply input, allowing easy gate pulse
width adjustment
UAccurate time-out using the mains frequency, or widely
t4adjustable external “RC” time-out.
e2 TYPICAL APPLICATIONS
eTemperature control of cooking or heating appliances.
hHair styling tools (straighteners, driers, curling wands ..)
Electric Irons
SToaster Ovens, Rice Cookers, Hotplates, Fry Pans, etc.
taElectric Blankets, Heating Pads, etc.
or other appliances where a safety time-out is required.
a4 BLOCK DIAGRAM
Time-out can be accurately controlled from the AC supply
frequency for a period of 1 hour (60Hz, or 71minutes at
50Hz), or can be adjusted by adding external resistor and
capacitor components to set the frequency of an on-chip
RC oscillator. In this manner, time-out periods from 1
minute to more than 5 hours, are possible.
The IES5521A is a monolithic bipolar control circuit for
zero-crossing triggering of a triac in applications where it is
controlled by a resistive sensor such as an NTC
thermistor. In a typical application it can be used for the
temperature control of a heating element in a cooker or
another home heating appliance.
It is designed to control a suitable triac with a resistive load
ranging from 400 watts on a nominal 220/250 volt mains
supply. It can also be easily applied to 120Vac mains
applications.
.D Neutral
wNTC
100k
ww@25°C
Rb
θ RV1
100k
SENS 4
latch
zero
crossing
control
logic
GATE
2
Vcc
3
stabalised
8 AC
330k
Rc 0.25W
7 PWR
Rd* 100k
0.6W
Triac
BT134-600E
Load
C2
47uF
10V
IES5521A 6
Ra CAP
C1
100nF
2005 Dec 12
time-out
timer
5
RC
Rtc C3
6.5V
* If required
Fig.1 Block diagram
1
DC supply
6.5V
.com1
Vee
heet4UIES5521A-block cct3
230Vac
mains
Active
www.DataSProduct Specification

line_dark_gray
IES5521A equivalent
Integrated Electronic Solutions
abbing IC’s fo
35Years
IES5521A
Simple Zero-Crossing Triac Control
Circuit with Adjustable Time-out
8 CHARACTERISTICS
At Tamb = 25°C; Voltages are specified with respect to pin 3 (VCC)
SYMBOL
PARAMETER
CONDITIONS
Power supply
VEE
IEE
supply voltage (operating)
supply current (operating)
excluding gate drive.
470kpull-up on
RC.
Gate drive
IGATE
gate current (triac T1 to VCC) VGATE = VCC
Zero crossing detection
IAC +ve threshold
VAC
ve threshold
Timing capacitor
ICAP
discharge current
VUT
upper threshold
VLT
lower threshold
ICAP charge current
Sense input (Figure 4)
ISENS = 20 µA
VSENS
sense voltage
VSENS
sense voltage
−∆VSENS/ oC temperature sensitivity
VSENS(rms) AC sense voltage
VSENS(rms) AC sense voltage
VSENS(rms)
VSENS(rms)
VSENS(rms)
VSENS(rms)
AC sense voltage
AC sense voltage
AC sense voltage
AC sense voltage
RC input (Figure 6)
ISENS = 20 µA
duty cycle = 50%
Duty cycle = 5%
Duty cycle = 25%
Duty cycle = 50%
Duty cycle = 75%
Duty cycle = 95%
Duty cycle = 100%
IRC
VRCTU
VRCTL
fOSC
tTO
charging current
RC threshold - upper
RC threshold - lower
oscillator frequency
time-out time, IES5521A
At RC pin
R4=470k, C3=100nF
R4=470k, C3=100nF
Mains Frequency Timing (R4=470k, Figure 5)
tTO
time-out time, IES5521A
fMAINS = 60Hz
fMAINS = 50Hz
MIN
6.3
10
0.4
3550
4260
TYP MAX UNIT
6.9 7.6 V
µA
210 270
12.5 - mA
66 − µA
6.4 V
1
1100
VEE+1100
150
2.2 µA
mV
mV
− µA
1000
575
2.2
0.47
0.48
0.50
0.53
0.65
0.73
mV
mV
mV/oC
V(rms)
V(rms)
V(rms)
V(rms)
V(rms)
V(rms)
340
2.4
0.6
15.42
3454
810 µA
3.0 V
V
Hz
s
3550 s
4260 s
2005 Dec 12
5 Product Specification


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for IES5521A electronic component.


Information Total 10 Pages
Link URL [ Copy URL to Clipboard ]
Download [ IES5521A.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
IES5521AThe function is Simple Zero Crossing Triac Control Circuit. IESIES

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

IES5     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search