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TDA 4814

Features: · IC for sinusoidal line-current consumption· Power factor approaching 1· Controls boost converter as an active harmonics filter· Direct drive of SIPMOS transistor· Zero crossing detector for discontinuous operation mode with variable frequency· 110/220 V AC operation without switchover·...

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SeekIC No. : 004516013 Detail

TDA 4814: Features: · IC for sinusoidal line-current consumption· Power factor approaching 1· Controls boost converter as an active harmonics filter· Direct drive of SIPMOS transistor· Zero crossing detector ...

TDA 4814 Data Sheet

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Part Number:
TDA 4814
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·  IC for sinusoidal line-current consumption
· Power factor approaching 1
· Controls boost converter as an active harmonics filter
· Direct drive of SIPMOS transistor
· Zero crossing detector for discontinuous operation mode with variable frequency
· 110/220 V AC operation without switchover
· Standby current consumption of 0.5 mA
· Start/stop monitoring circuit for lamp generators


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Limit Values
Unit
 Notes
min.
max.
Supply voltage
VS
0.3
VZ
V
 VZ = Z Voltage
Comparator
VICOMP
0.3
33
V
  
 
VI COMP
0.3
33
V
  
Op Amp
VI Op Amp
0.3
6
V
  
 
V I Op Amp
0.3
6
V
  
Multiplie
VM1
0.3
33
V
  
Multiplier
VQM
0.3
3
V
 VS > 3 V
Op Amp
VQ Op Amp / IM2
0.3
6
V
  
Z current VS GND
IZ
0
300
mA
 Observe Pmax
Driver output QSIP
VQSIP
0.3
VS
V
 Observe Pmax
QSIP clamping diodes
IQSIP D
10
10
mA
 VQ > VS or
VQ < 0.3 V
Input START
VI START
0.3
25
V
  
STOP
VI STOP
0.3
33
V
  
Output START
VQ START
10
3
V
  
STOP
VQ STOP
0.3
6
V
  
Detector input
VI DET
0.9
6
V
  
Detector clamping diodes
II DET
10
10
mA
 VI DET > 6 V or
VI DET < 0.9 V
Capacitance at I START
to ground
CI START
150
nF
  
Junction temperature
Tj
150
°C
  
Storage temperature
Tstg
55
125
°C
  
Thermal resistance
system - air
Rth SA
65
K/W
  



Description

The TDA 4814 A contains all functions for designing electronic ballasts and switched-mode power supplies with sinusoidal line current consumption and a power factor approaching 1. They control a boost converter as an active harmonic filter in a discontinuous (triangular shaped current) mode with variable frequency.

The output voltage of this filter TDA 4814 is regulated with high efficiency. Therefore the device can easily be operated on different line voltages (110/220 VAC) without any switchover. he on-chip start/stop circuit monitors the lamp generator of electronic ballasts. It starts a selfoscillating amp generator and shuts it down in the event of malfunction, e.g. if the lamp is defective.

A typical application TDA 4814 is in electronic ballasts, especially when a large number of such lamps are oncentrated on one line supply point.




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