TDA4862XK Infineon Technologies, TDA4862XK Datasheet - Page 2

• Manufacturer Part Number: TDA4862XK
• Manufacturer: Infineon Technologies

Specifications of TDA4862XK

• Operating Supply Voltage (min): -0.3V
• Operating Supply Voltage (max): 19V
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Package Type: PDIP
• Pin Count: 8
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Compliant

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,
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.
Figure 1
MULTIN
V
Ι
V
SENSE
SENSE
AOUT
Pin Configuration (top view)
1
2
3
4
TDA 4862 G
IEP01748
8
7
6
5
V
GTDRV
GND
DETIN
CC
2
MULTIN
V
Ι
V
SENSE
SENSE
AOUT
1
2
3
4
TDA 4862
IEP01749
V
8
7
6
5
CC
zener clamp,
V
GTDRV
GND
DETIN
TDA 4862
CC
2005-02-17