TDA4862 Infineon Technologies, TDA4862 Datasheet - Page 3

• Manufacturer Part Number: TDA4862
• Description: IC PFC CONTROLLER DCM 8DIP
• Manufacturer: Infineon Technologies

Specifications of TDA4862

• Mode: Discontinuous Conduction (DCM)
• Voltage - Supply: 11 V ~ 19 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP
• Switching Frequency: 200 KHz
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Current - Startup: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000011734; TDA4862X; TDA4862XK

Pin Definitions and Functions
Pin Symbol Function
1
2
3
4
5
6
7
8
V
V
MULTIN Multiplier Input;
I
DETIN
GND
GTDRV Gate Drive Output;
V
SENSE
SENSE
AOUT
CC
Voltage Amplifier Inverting Input;
V
With a capacitor connected to
Voltage Amplifier Output;
V
overshoot the input voltage will be clamped at 5 V. During no load
conditions output pulses are suppressed completely when
below 2.2 V.
If the current flowing into this pin is exceeding an internal defined margin
the multiplier output voltage is reduced to prevent the MOSFET from
overvoltage damage.
MULTIN is the second multiplier input and connected via a resistive
divider to the rectifier output voltage.
Current Sense Minus;
I
current. The input is internally clamped at – 0.3 V to prevent negative
input voltage interaction. An internal low pass filter suppresses voltage
spikes when turning the MOSFET on.
Zero Current Detector Input;
DETIN is connected to an auxiliary winding monitoring the zero crossing
of the inductor current.
Ground;
All voltages are measured with respect to GND.
bypassed directly to GND with a 0.1 µF or larger ceramic capacitor.
GTDRV is the output of a totem-pole circuitry for direct driving a
MOSFET. A clamping network bypasses low state source current and
high state sink current.
Positive Supply Voltage;
V
turn-ON threshold for normal operation. A 100 nF or lager ceramic
capacitor connected to
charge external MOSFET gate capacitances.
SENSE
SENSE
AOUT
CC
should be connected to a stable source slightly above the
is connected internally to the first multiplier input. To prevent
is connected to a sense resistor controlling the MOSFET source
is connected via a resistive divider to the boost converter output.
V
CC
3
absorbs supply current spikes required to
V
AOUT
it forms an integrator.
V
CC
should be
V
AOUT
TDA 4862
2005-02-17
V
CC
falls