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Infineon Technologies Electronic Components Datasheet

TDA4862 Datasheet

Power-Factor Controller (PFC) IC

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Power-Factor Controller (PFC)
IC for High Power Factor
and Active Harmonic Filter
Advanced Information
Features
• IC for sinusoidal line-current consumption
• Power factor approaching 1
• Controls boost converter as an active
harmonics filter
• Internal start-up with low current consumption
• Zero current detector for discontinuous
operation mode
• High current totem pole gate driver
• Trimmed ± 1.4% internal reference
• Undervoltage lock-out with hysteresis
• Very low start-up current consumption
• Pin compatible to world standard
• Fast overvoltage regulator
• Current sense input with internal low pass filter
Type
TDA 4862
TDA 4862 G
= New type
Ordering Code
Q67000-A8368
Q67006-A8369
TDA 4862
Bipolar IC
PG-DIP-8-1
PG-DSO-8-1
Package
PG-DIP-8-1
PG-DSO-8-1
1 2005-02-17


Infineon Technologies Electronic Components Datasheet

TDA4862 Datasheet

Power-Factor Controller (PFC) IC

No Preview Available !

TDA 4862
Description
The TDA 4862 is excellent convenient for designing a preconverter in ballasts and
switched mode power supplies with sinusoidal line current consumption and a power
factor approaching unity.
The TDA 4862 controls a boost converter as an active harmonics filter in a discontinuous
mode (free oscillating triangular shaped current mode).
The TDA 4862 comprises an internal start-up timer, a high gain voltage amplifier, an one
quadrant multiplier for approaching unity power factor, a zero current detector, PWM and
logic circuitry, and totem pole MOSFET gate driver.
Protective features are: input undervoltage lockout with hysteresis, VCC zener clamp,
cycle-by-cycle current limiting, output voltage limiting for fast and slow load changes up
to open circuit, and a sinking gate driver current activated whenever undervoltage mode
occurs.
The output voltage of this preconverter is regulated with high accuracy. Therefore the
device can be used for world-wide line voltages without switches.
The TDA 4862 is the improved version of the TDA 4817 with a pinout equivalent to world
standard.
TDA 4862 G
TDA 4862
VSENSE
VAOUT
MULTIN
Ι SENSE
1
2
3
4
8
7
6
5
IEP01748
VCC
GTDRV
GND
DETIN
VSENSE
VAOUT
MULTIN
Ι SENSE
1
2
3
4
8 VCC
7 GTDRV
6 GND
5 DETIN
IEP01749
Figure 1 Pin Configuration (top view)
2 2005-02-17


Part Number TDA4862
Description Power-Factor Controller (PFC) IC
Maker Infineon
Total Page 18 Pages
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