L6574D 参数 Datasheet PDF下载

L6574

PIN DESCRIPTION

(continued)

N°

9

10

11

Pin

EN2

GND

LVG

Function

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 .

Ground.

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.

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

typical).

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

the LV side.

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

side power MOS or IGBT.

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.

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.

12

13

14

15

VS

N.C.

OUT

HVG

16

VBOOT

ABSOLUTE MAXIMUM RATINGS

Symbol

I

S

V

LVG

V

OUT

V

HVG

V

BOOT

dV

BOOT

/dt

dV

OUT

/dt

V

ir

V

ic

V

EN1

, V

EN2

I

EN1

, I

EN2

V

opc

V

opd

V

opo

T

stg

, T

j

T

amb

Supply Current (*)

Low Side Output

High Side Reference

High Side Output

Floating Supply Voltage

V

BOOT

pin Slew rate (repetitive)

OUT pin Slew Rate (repetitive)

Forced Input Voltage (pins Ring, Rpre)

Forced Input Voltage (pins Cpre, Cf)

Enable Input Voltage

Enable Input Current

Sense Op Amp Common Mode Range

Sense Op Amp Differential Mode Range

Sense Op Amp Output Voltage (forced)

Storage Temperature

Ambient Temperature

Parameter

Value

25

-0.3 to Vs +0.3

-1 to VBOOT -18

-1 to VBOOT

-1 to 618

±50

±50

-0.3 to 5

-0.3 to 5

-0.3 to 5

±3

-0.3 to 5

±5

4.6

-40 to +150

-40 to +125

Unit

mA

V

V

V

V

V/ns

V/ns

V

V

V

mA

V

V

V

°C

°C

(*) The device has an internal Clamping Zener between GND and the V

CC

pin, it must not be supplied by

a Low Impedance Voltage Source.

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

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