Microchip HV264DB1 Manual

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Supertex inc.

www.supertex.com

HV264DB1

Doc.# DSDB-HV264DB1

NR060613

Quad, High Voltage

Amplier Array Demo Board

Specications

The Supertex HV264TS-G is a quad high voltage amplier

array device in a 24-pin TSSOP package. The HV264DB1

demo board provides a platform to evaluate this device.

This demoboard requires only a minimum setup including

a VDD low voltage supply, a VPP high voltage supply, and

a signal source. The demoboard provides the input/output

connections through two 6-pin headers.

For detailed electrical performance, please refer to the

HV264 datasheet.

General Description

Board Layout

Parameter Value

VPP high voltage supply 200V

VDD

low voltage supply 4.5 to 5.5V

HVOUT output voltage swing 1.0V to VPP - 10V

VIN Input signal range 0 to VDD - 1.5V

closed loop gain 66.7V/V with internal

feedback resistors

Typical SR output slew rate 9.0V/µs

IPEAK output peak current 3.0mA

Power Up/Down Sequence

The device can be damaged due to an improper power up /

down sequence. To prevent damage, please follow the ac-

ceptable power up / down sequences. An external diode

across VPP and VDD in included on the board, where the

anode of the diode is connected to VDD and the cathode is

connected to VPP. Any low current high voltage diode will be

adequate.

Acceptable Power Up Sequences

1) VDD 2) VPP 3) Inputs

1) VDD 2) Inputs 3) VPP

Acceptable Power Down Sequences

1) Inputs, 2) VPP ) VDD

1) VPP ) Inputs) VDD

Gain Setting

The HV264 quad amplier array has the internal built-in gain

setting resistors available with a xed gain of 66.7V/V +/- 5%.

External gain setting resistors can be used for applications

that require better tolerance or a different closed loop gain. An

example is shown in the following schematics. Fig. 1 shows

the schematics of the demoboard. The external resistor val-

ues and tolerances can be selected to meet different gain set-

ting and precision requirements as shown in Fig. 2.

Pin Name Description

VPP High voltage positive supply

VDD Low voltage positive supply

IN1 to IN4 Amplier inputs

HVOUT1 to HVOUT4 Amplier outputs

GND Device ground

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	HV264DB1

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