L6561

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Table 2. Absolute Maximum Ratings

Figure 3. Pin Connection (Top view)

Table 3. Thermal Data

Table 4. Pin Description

(1) Parameter guaranteed by design, not tested in production.

Symbol

Pin

Parameter

Value

Unit

30

mA

7

Output Totem Pole Peak Current (2

µs)

±700

mA

INV, COMP

MULT

1, 2, 3

Analog Inputs & Outputs

-0.3 to 7

V

CS

4

Current Sense Input

-0.3 to 7

V

ZCD

5

Zero Current Detector

50 (source)

-10 (sink)

mA

mA

(DIP-8)

(SO-8)

1

0.65

W

W

Junction Temperature Operating Range

-40 to 150

°C

Storage Temperature

-55 to 150

°C

Symbol

Parameter

SO 8

MINIDIP

Unit

Thermal Resistance Junction to ambient

150

100

°C/W

N.

Name

Function

1

INV

Inverting input of the error amplifier. A resistive divider is connected between the output

regulated voltage and this point, to provide voltage feedback.

2

COMP

Output of error amplifier. A feedback compensation network is placed between this pin and the

INV pin.

3

MULT

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.

4

CS

Input to the comparator of the control loop. The current is sensed by a resistor and the resulting

voltage is applied to this pin.

5

ZCD

Zero current detection input. If it is connected to GND, the device is disabled.

6

GND

Current return for driver and control circuits.

7

GD

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.

INV

COMP

MULT

CS

1

3

2

4ZCD

GND

GD

8

7

6

5

DIP8