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L6569 L6569A

PIN FUNCTION

N°

Pin

Description

1

VS

Supply input voltage with internal clamp [typ. 15.6V]

2

RF

Oscillator timing resistor pin.

connected between pin 2 and 3.

Alternatively, the signal on pin 2 can be used also to drive another IC (i.e. another L6569 to drive

a full H-bridge)

3

CF

Oscillator timing capacitor pin.

frequency

Alternatively an external logic signal can be applied to the pin to drive the IC.

4

GND

Ground

5

LVG

Low side driver output.

The output stage can deliver 170mA source and 270mA sink [typ.values].

6

OUT

Upper driver floating reference

7

HVG

High side driver output.

The output stage can deliver 170mA source and 270mA sink [typ.values].

8

BOOT

Bootstrap voltage supply.

It is the upper driver floating supply. The bootstrap capacitor connected between this pin and pin

6 can be fed by an internal structure named “bootstrap driver” (a patented structure). This

structure can replace the external bootstrap diode.

Symbol

Pin

Parameter

Test Condition

Min.

Typ.

Max.

Unit

1

VS Turn On Threshold

8.3

9

9.7

V

VS Turn Off Threshold

7.3

8

8.7

V

VS Hysteresis

0.7

1

1.3

V

VS Clamping Voltage

14.6

15.6

16.6

V

Start Up Current

150

250

µA

Quiescent Current

500

700

µA

8

Leakage Current BOOT pin vs

GND

5

µA

6

Leakage Current OUT pin vs

GND

5

µA

7

High Side Driver Source Current

110

175

mA

High Side Driver Sink Current

190

275

mA

5

Low Side Driver Source Current

110

175

mA

Low Side Driver Sink Current

190

275

mA