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L6574

ABSOLUTE MAXIMUM RATINGS

a Low Impedance Voltage Source.

Note: ESD immunity for pins 14, 15 and 16 is guaranteed up to 900V (Human Body Model)

9

EN2

Enable 2. EN2 input (active high) restarts the start-up procedure (preheating and ignition

sequence). This features is useful if the lamp does not turn-on after the first ignition sequence .

10

GND

Ground.

11

LVG

Low Side Driver Output. This pin must be connected to the low side power MOSFET gate of the

half bridge. A resistor connected between this pin and the power MOS gate can be used to

reduce the peak current.

12

VS

Supply Voltage. This pin, connected to the supply filter capacitor, is internally clamped (15.6V

typical).

13

N.C.

Non Connected. This pin set a distance between the pins related to the HV and those related to

the LV side.

14

OUT

High Side Driver Floating Reference. This pin must be connected close to the source of the high

side power MOS or IGBT.

15

HVG

High Side Driver Output. This pin must be connected to the high side power MOSFET gate of the

half bridge. A resistor connected between this pin and the power MOS gate can be used to

reduce the peak current.

16

VBOOT

Bootstrapped Supply Voltage. Between this pin and VS must be connected the bootstrap capac-

itor. A patented integrated circuitry replaces the external bootstrap diode, by means of a high

voltage DMOS, synchronously driven with the low side power MOSFET.

Symbol

Parameter

Value

Unit

Supply Current (*)

25

mA

Low Side Output

-0.3 to Vs +0.3

V

High Side Reference

-1 to VBOOT -18

V

High Side Output

-1 to VBOOT

V

Floating Supply Voltage

-1 to 618

V

±50

V/ns

OUT pin Slew Rate (repetitive)

±50

V/ns

Forced Input Voltage (pins Ring, Rpre)

-0.3 to 5

V

Forced Input Voltage (pins Cpre, Cf)

-0.3 to 5

V

Enable Input Voltage

-0.3 to 5

V

Enable Input Current

±3mA

Sense Op Amp Common Mode Range

-0.3 to 5

V

Sense Op Amp Differential Mode Range

±5V

Sense Op Amp Output Voltage (forced)

4.6

V

Storage Temperature

-40 to +150

°C

Ambient Temperature

-40 to +125

°C

PIN DESCRIPTION (continued)

N°

Pin

Function