L4984D STMicroelectronics, L4984D Datasheet - Page 6

• Manufacturer Part Number: L4984D
• Description: Power Factor Correction ICs Current Mode PFC CCM Line Modulated Bi
• Manufacturer: STMicroelectronics

Specifications of L4984D

• Rohs: yes

Block diagram
6/35
Table 2.
Figure 2.
Table 3.
Table 4.
Other pins
N.
Rth j-amb
1
2
Symbol
VFF pin
Symbol
Tstg
V
Ptot
Tj
CC
-
-
COMP
Name
INV
Absolute maximum ratings
Pin connection (top view)
Thermal data
Pin functions
Max. thermal resistance, junction-to-ambient
Power dissipation at T
Junction temperature operating range
Storage temperature
2, 4, 5, 7
6 to 10
1, 3, 6
1 to 4
Pin
10
5
COMP
MULT
Inverting input of the error amplifier. The information on the output voltage of
the PFC pre-regulator is fed into the pin through a resistor divider. The pin
normally features high impedance.
Output of the error amplifier. A compensation network is placed between this
pin and INV (pin 1) to achieve stability of the voltage control loop and ensure
high power factor and low THD. To avoid uncontrolled rise of the output
voltage at zero load, when the voltage on the pin falls below 2.4 V the gate
driver output is inhibited (burst-mode operation).
VFF
INV
CS
IC supply voltage (Icc = 20 mA)
Max. pin voltage (I
Analog inputs & outputs
Maximum withstanding voltage range
test condition: ANSI/ESDA/JEDEC JS001
Doc ID 023489 Rev 3
amb
1
3
4
Parameter
2
5
= 50 °C
Parameter
pin
= 1 mA)
Function
10
9
8
7
6
Vcc
GD
GND
TIMER
PFC_OK
-40 to 150
-55 to 150
Self-limited
Self-limited
Value
-0.3 to 8
+/- 1500
+/- 2000
0.75
120
Value
AM13218v1
°C/W
Unit
Unit
L4984
°C
°C
W
V
V
V
V
V