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廬

L6660

MILLI-ACTUATOR DRIVER

PRODUCT PREVIEW

90V BCD MIXED TECHNOLOGY

SO24 PLASTIC SMD PACKAGE

4.5 TO 13.2V OPERATIVE VOLTAGE

鹵25

TO

鹵35V

OUTPUT VOLTAGE RANGE

SELECTABLE BY EXTERNAL RESISTORS

FULL-WAVE RESONANT DC-DC CON-

VERTER USING SINGLE COIL FOR DUAL

HIGH VOLTAGE GENERATOR WITH OUT-

PUT SLEW RATE CONTROL AND SELF

CURRENT LIMITING FOR LOW EMI

鹵35V

OR 0/+70V OPERATIVE VOLTAGE

DRIVING CONFIGURATION MODES:

1. SINGLE ENDED VOLTAGE MODE

2. DIFFERENTIAL VOLTAGE MODE

3. SINGLE ENDED CHARGE MODE

DOUBLE OPERATIONAL AMPLIFIERS WITH

500KHZ GAIN BANDWIDTH PRODUCT AND

LOAD DRIVING CAPABILITY FROM 0.4nF

UP TO 24nF

ANALOG VOLTAGE SHIFTING CIRCUITRY

BLOCK AND APPLICATION DIAGRAM

SO24(Shrink)

INTERNAL 2.5V VOLTAGE REFERENCE

POWER SAVING SLEEP MODE

USER SPECIFIED INPUT REFERENCE

(2.25V DC)

DESCRIPTION

The L6660 is a piezoelectric actuator driver.

[24] HVP

[7] SLEEP

SLEEP

-

HVP

1

K

[17] INB(inv)

[16] INB(not inv)

[18] OUTK-B

B

+

[19] OUT1-B

[10] Vosh

[11] Vin0-5

Shifter

Vosh=Vin-Vref

HVM

HVP

1

1

K

[23] HVM

K

From DAC

OUTPUT

[8] INA(inv)

[9] INA(not inv)

-

[6] OUTK-A

V512

A

+

[5] OUT1-A

HVM

[15] WENA

1

K

V5/12

[3] COIL

47碌H

2.2nF

+35V

[4] AorB

[1] AandB

MUX

Controll

Logic

A-GND

Internal

Current

Bias

+

[20] V5/12AP

[14] IN Vref

Back-Up

Oscill.

DC-DC LOGIC

Rfdb1

220nF

Rs

Digital

Pwr Supply

[13] Vref out

-

68nF

HVM

Rfdb2

Internal Band-gap

and 2.5 reference Voltage

-35V

:5

220nF

[12] GND-A

[21] Vfdb

[22] RCcomp

[2] GND-P

100nF

47nF

HVP=VrefIN(1+Rfdb1/Rfdb2)

December 2000

This is preliminary information on a new product now in development. Details are subject to change without notice.

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