L6561
ABSOLUTE MAXIMUM RATINGS
Symbol
I
Vcc
I
GD
INV, COMP
MULT
CS
ZCD
P
tot
T
j
T
stg
Pin
8
7
1, 2, 3
4
5
I
CC
+ I
Z
Output Totem Pole Peak Current (2µs)
Analog Inputs & Outputs
Current Sense Input
Zero Current Detector
Power Dissipation @T
amb
= 50
°C
Junction Temperature Operating Range
Storage Temperature
(Minidip)
(SO8)
Parameter
Value
30
±700
-0.3 to 7
-0.3 to 7
50 (source)
-10 (sink)
1
0.65
-25 to 150
-55 to 150
Unit
mA
mA
V
V
mA
mA
W
°
C
°
C
PIN CONNECTION
THERMAL DATA
Symbol
R
th j-amb
Parameter
SO 8
150
MINIDIP
100
Unit
°C/W
Thermal Resistance Junction-ambient
PIN FUNCTIONS
N.
1
2
3
4
5
6
7
8
Name
INV
COMP
MULT
CS
ZCD
GND
GD
V
CC
Function
Inverting input of the error amplifier. A resistive divider is connected between the output
regulated voltage and this point, to provide voltage feedback.
Output of error amplifier. A feedback compensation network is placed between this pin and
the INV pin.
Input of the multiplier stage. A resistive divider connects to this pin the rectified mains. A
voltage signal, proportional to the rectified mains, appears on this pin.
Input to the comparator of the control loop. The current is sensed by a resistor and the
resulting voltage is applied to this pin.
Zero current detection input. If it is connected to GND, the device is disabled.
Current return for driver and control circuits.
Gate driver output. A push pull output stage is able to drive the Power MOS with peak current
of 400mA (source and sink).
Supply voltage of driver and control circuits.
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STMICROELECTRONICS [ STMICROELECTRONICS ]
