90V BCD MIXED TECHNOLOGY

SO24 PLASTIC SMD PACKAGE

4.5 TO 13.2V OPERATIVE VOLTAGE

±25 TO ±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

±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

INTERNAL 2.5V VOLTAGE REFERENCE

POWER SAVING SLEEP MODE

USER

SPECIFIED

INPUT

REFERENCE

(2.25V DC)

DESCRIPTION

The L6660 is a piezoelectric actuator driver.

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

December 2000

®

HVM

-35V

V512

+35V

Rfdb1

Rfdb2

HVP=VrefIN(1+Rfdb1/Rfdb2)

From DAC

OUTPUT

2.2nF

47

µH

220nF

68nF

220nF

47nF

Rs

V5/12

1

K

1

K

HVP

HVM

-

+

1

K

1

K

HVP

HVM

-

+

B

A

Internal

Current

Bias

+

-

DC-DC LOGIC

Back-Up

Oscill.

:5

[12] GND-A

[21] Vfdb

[22] RCcomp

[2] GND-P

[3] COIL

[5] OUT1-A

[6] OUTK-A

[23] HVM

[19] OUT1-B

[18] OUTK-B

[24] HVP

MUX

Controll

Logic

Internal Band-gap

and 2.5 reference Voltage

Digital

Pwr Supply

Shifter

Vosh=Vin-Vref

SLEEP

[15] WENA

[17] INB(inv)

[16] INB(not inv)

[9] INA(not inv)

[8] INA(inv)

[4] AorB

[1] AandB

[20] V5/12AP

[14] IN Vref

[7] SLEEP

[10] Vosh

[11] Vin0-5

[13] Vref out

A-GND

100nF

BLOCK AND APPLICATION DIAGRAM

SO24(Shrink)

L6660

MILLI-ACTUATOR DRIVER

PRODUCT PREVIEW

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