HV892 datasheet(5/6 Pages) SUTEX

5 / 6 page

HV892

Supertex inc.

www.supertex.com

Doc.# DSFP-HV892

A042314

Pin Functions

Name

Description

GND1

Ground for the DC–DC converter. Connect GND1 and GND2 together close to the IC.

VIN

Input voltage. Bypass with a 2.2µF capacitor to GND1.

SCL

Clock for the I2C interface. The HV892 is a Fast Mode device (f

SCL ≤ 400kHz).

SDA

Serial data for the I2C interface. The HV892 is a write-only device, with a single 8-bit command byte

(AMP, see page 4).

VDD

Externally supplied reference voltage for the I2C logic levels. Connect to the I2C bus supply.

GND2

Ground for the IC except the DC-DC converter. Connect GND1 and GND2 together close to the IC.

OUT2

Outputs of the H-bridge driver. The liquid lens connects between these two pins.

When disabled (AMP = 00h), both of these outputs are held at ground.

OUT1

Not connected.

High voltage DC output of the internal boost converter. Connect a 4.7nF, 100V ceramic capacitor to

ground close to the IC.

Exposed backside pad is at ground potential and should be connected to circuit ground.

HV892 Datasheet(PDF) 5 Page - Supertex, Inc